Steel plate

Steel Plate or structural steel is simply steel sheet material that can be customarily cut and welded to develop a more elaborate product. Steel plate is made by compressing multiple steel layers together into one; forming a plate of steel.

Steel Plate is commonly used to strengthen foundations and uphold mass units of weight like bridges. Alternatively, it provides a base for the construction of larger materials and non-workable parts.

Applications for Steel Plate are based acutely on the specifics of the project. This simply means that certain grades are more appropriate to particular tasks than others.

The Benefits of Steel Plate

Steel Plate is both corrosion and abrasion-resistant. It is manufactured to a much broader range of thicknesses than ordinary steel sheets. Plate steel is primarily used in applications where a super-structural framework and indestructible durability are required.

Not only is it produced for structural purposes, but it can also be implemented for general repairs too. In addition to great reinforcement purposes, Steel Plate is able to withstand immense stress from the harshest natural environments, mainly, the ocean.

It serves as a considerable advantage to the world of heavy machinery. Its durability allows for machining and wearable elements to last much longer.

Although it’s mostly used for reinforcement and bracing purposes, Plate Steel has proved to have a substantial degree of versatility.

Medium and heavy plate

Medium and heavy plate is defined as any steel plate material that is 2-inches thick or greater. Heavy plate is comprised of a variety of grades produced in the United States and abroad. These grades are used in various applications, including mining, energy and automotive. However, heavy plate is primarily used in construction and structural applications.

The main products of medium and heavy plate are carbon structural steel, high quality carbon structural steel, low alloy high strength steel plate, ship building plate, pipelines steel plate, steel plates with through-thickness characteristics, steel plate for automobile frames, bridge steel plate, boiler steel plate, etc.

Availability & Standards of steel plates

Shorter lead times allow for receipt of steel plate products faster.

Type/Material Main grade Thickness
Carbon steel plate

The carbon steel plate has usually been considered as steel that does not contain any alloy steel elements. Generally, elements are C, Mn, P, S, Si, besides these, there are no minimum limits for elements of Al, Cr, Ni, Mo, V, etc.

Carbon steel plates are available in different grades depending on carbon content and strength.

Q235A/B/C/D

Q275A/B/C/D

A283Gr.C/Gr.D

ASTMA36

A573Gr.58/Gr.65/Gr.70

SS400

SM400A/B/C

S235JR/J0/J2

S275JR/J0/J2

S275N/NL

S275M/ML, 250, 250L0, 250L15

5-130mm
Low alloy steel plate

Low alloy steel plate contains fewer alloy elements below 3.5% of total elements. Intending to add some alloy elements on the carbon steel basic for improving the steel performance. Low alloy steel plates are mainly used to manufacture plants and factories.

Q345A/B/C/D/E

Q390A/B/C/D/E

Q420A/B/C/D/E

Q460C/D/E

Q500C/D/E

Q550C/D/E

Q620C/D/E

Q690C/D/E

Q890D/E

Q960D/E

XGCFQ500D/E

A572Gr.50/Gr.60

SS490

SM490A/B/C

S355JR/J0/J2/K2

S355J2G3

S355N/NL

S420N/NL

S460N/NL

S355M/ML

S420M/ML

S460M/ML

S500Q/QL/QL1

S550Q/QL/QL1

S620Q/QL/QL1

S690Q/QL/QL1

S355G8+N,350

350L0

350L15

Grade 345:5-130mm
Grade 390-690:6-80mm
Grade 890-960:6-50mm
General strength ship plate
High-strength ship board
Ultra-high-strength ship board
A/B/D/E, A32/D32/E32/F32, A36/D36/E36/F36, A40/D40/E40/F40, A131A/B/D/E/AH32/DH32/EH32/AH36/DH36/EH36/AH40/DH40/EH40 NVA420/D420/E420, NVA460/D460/E460, NVA500/D500/E500, NVA550/D550/E550 General strength and high strength: 5-80mm
Ultra-high strength: 5-115mm (certification stage)
Marine pot capacity board NV360/410/460/490/510 , LR360/360FG, LR410/410FG, LR460FG/490FG/510FG 5-60mm
Bridge plates Q235qC/D/E , Q345qC/D/E, Q370qC/D/E, Q420qC/D/E , Q460qC/D/E , Q500qD/E , Q550qD/E , Q620qD/E , Q690qD/E , A709-50T-1/50T-2/50T-3/50F-1/50F-2/50F-3,  A 709-50W-A/B/C-F1/F2/F3 -T1/T2/T3 Grade 235-420:5-100mm
Grade 460-690:6-80mm
Boiler vessel plate Q245R, Q345R, Q370R, 15CrMoR, 12Cr1MoVR, 13MnNiMoR, 12Cr2Mo1R, 14Cr1MoR, 18MnMoNbR, 16MnDR, 09MnNiDR, 15MnNiDR, 07MnCrMoVR, 07MnNiMoVDR, 12MnNiVR, XG610E, 12MnNiVR-SR, Q245R(HIC), Q345R(HIC), Q245R(R-HIC), Q345R(R-HIC) , XGCF62, 16MnDR (HIC) , 16MnDR (R-HIC) P235GH, P265GH, P295GH, P355GH, 16Mo3,  P275NH/NL1/NL2, P355N/NH/NL1/NL2, P460NH/NL1/NL2, P355M/ML1/ML2, P420M/ML1/ML2, P460M/ML1/ML2, P355Q/QH/QL1/QL2, P460Q/QH/QL1/QL2, P500Q/QH/QL1/QL2, P690Q/QH/QL1/QL2, 10CrMo9-10, 11MnNi5-3, 13CrMo4-5, 13CrMoSi5-5, 13MnNi6-3, 18MnMo4-5, 20MnMoNi4-5, (S)A204Gr.A/Gr.B/Gr.C,  (S)A285Gr.A/Gr.B/Gr.C,  (S)A299Gr.A/Gr.B, A302Gr.A/Gr.B/Gr.C/Gr.D, 387Gr.2/Gr.11/Gr.12/Gr.22, ASTMA455,  (S)A515Gr.60/65/70,  (S)A516Gr.55/60/65/70 , (S)A516Gr.60(HIC), (S)A516Gr.60(R-HIC), (S)A517Gr.B/Gr.H, (S)A533Gr.A/Gr.B/Gr.C, (S)A537Cl.1/Cl.2/Cl.3, ASTMA612, (S)A662Gr.A/Gr.B/Gr.C, (S)A737Gr.B/Gr.C, A738Gr.A/Gr.B/Gr.C, (S)A841Gr.A/Gr.B/Gr.C/Gr.D, SB410/450/480, SB450M/480M, SEV245/295/345, SBV1A/1B, SBV2/3, SGV410/450/480, SPV235/315/355/410, SPV450/490, SQV1A/1B/2A/2B/3A/3B Grade 235-420:5-100mm
Grade 460-690:6-80mm
High rise building plate Q235GJB/C/D/E , Q345GJB/C/D/E, Q390GJC/D/E, Q420GJC/D/E, SN400A/B/C, SN490B/C 5-100mm
Pipeline Steel Plate

Pipeline steel plates are used to fabricate large diameter welded pipes which transportation oil and natural gas, also known as pipe steel plates. Now more and more world’s people focus on protecting our environment, new clean energy natural gas is widely used through pipelines. These pipeline steel plates own ability to resist high pressure, atmospheric corrosion and lower temperature surroundings.

API 5L---A25/A/BR/BM/X42R/X42M/X46M/X52M/X56M/X60M/X65M/X70M/X80M

GB/T 21237--- L245/L290/L320/L360/L390/L415/L450/L485/L555

GB/T 14164--- S245/S290/S320/S360/S390/S415/S450/S485/S555

5-40mm
Weather-resistant steel plate

Weather Resistant Steel Plates are used in applications that last longer and are exposed to the atmosphere for the long term. Applications that have to have plates in the open often use these Corrosion Resistant Steel Plates in combination with pipes, fittings, and flanges. The material can vary in composition but all the weathering steel types have low carbon, less than 0.3% by weight. This low carbon allows for the ductility and toughness of the Weather Resistant Steels Sheet. The name comes from the ability of the material to withstand weathering or atmospheric conditions over time. The specialty of the Corten Weather Resistant Steels is that it forms an oxide layer on the surface. This oxide layer cannot oxidize any further, so it acts as a barrier between the steels inside the layer and the oxidizing agents to the outside of the plates.

Q295 GNHA/B/C/D/E
Q355 GNHA/B/C/D/E
Q235 NHA/B/C/D/E
Q295 NHA/B/C/D/E
Q355 NHA/B/C/D/E
Q415 NHA/B/C/D/E
Q460 NHA/B/C/D/E
Q500 NHA/B/C/D/E
Q550 NHA/B/C/D/E
Q400 NQR1
Q450 NQR1
Q500 NQR1
Q550 NQR1
S235 J0 W/J2W
S355 J 0WP
S355 J2WP
S355 J 0W/J2W/K2W
ASTM A242
A588 Gr.A/ Gr.B/ Gr.C/ Gr.K
SMA 400AW/BW/CW
SMA 490AW/BW/CW
SMA 570W

Grade 295-355:5-100mm
Grade 415-550:6-60mm
Wear-resistant steel plate

Wear-resistant steel plate, also called abrasion-resistant or AR plate, is made from steel billets and comes in many grades. Alloys like carbon, manganese, nickel, chrome, and boron are added in different proportions. The grades, therefore, have different mechanical and chemical properties that will produce different results in an end product.

Wear-resistant steel is tougher and harder than conventional steel plate and can last up to 4 times longer than conventional high-strength steel.

NM360 , NM400, NM450, NM500

6-60mm
Mould plate, excellent steel plate Mould steel plate: P20, SM45, SM48, SM50, SM53, SM55, 2311
Excellent steel plate: 45, 50
6-120mm

Our wide selection of cold rolled coil, strip and sheet products are available for a variety of uses. These products come in heat and corrosion resistant forms. Their lightweight yet strong, durable and fully recyclable materials ensure versatility in application.

Cold rolled sheet and steel strip

A wide selection for a variety of uses; our cold rolled coil, strip and sheet products are available in both heat-and corrosion resistant forms. In addition, their standard and special surface finishes provide a unique level of customization.

Why the Cold roll coil, Strip and Sheet
  • Great width selection in coils, strips and sheets
  • Excellent dimensional accuracy
  • Available in austenitic, ferritic, duplex and martensitic grades, with a wide variety of special surfaces
Availability & Standards of steel plates

These products come in the following stainless-steel types: austenitic, ferritic, duplex and martensitic. Lightweight yet strong, the cold rolled coil, strip and sheet products are fully recyclable and are versatile in application.

Type/Material Main grade Thickness
Cold rolled steel sheet

Cold rolled steel sheets offer a variety of outstanding properties, including easy formability and a smooth, clean surface, and are used in automobiles, appliances, furniture, and many other everyday items.

Domestic: Q195, Q215A/B, Q235A/B/C/D, Q275A/B/C/D

Overseas: SPCC (for general use), SPCD (for stamping), SPCE (for deep drawing), SPCF (for non-aging deep drawing), SPCG (for non-aging super deep drawing)

Thickness: 0.25-2.00
Main equipment: 1550mm tandem cold rolling mill
Cold rolled high quality thin steel plate 08, 10, 15, 20, 25, 30, 35, 40, 45, 50, 08Al
Non-oriented electrical steel sheet Non-oriented electrical steel (NO) is widely used as a motor core material since, economically, it meets requirements for high-efficiency, high-power motors
35W400, 35W440, 50W470, 50W530, 50W600, 50W700, 50W800, 50W1000, 50W1300, 65W600, 65W700, 65W800, 65W1000, 65W1300, 65W1600
Alloy structural steel sheet 40B, 45B, 50B, 15Cr, 20Cr, 30Cr, 35Cr, 40Cr, 50Cr, 12CrMo, 15CrMo, 20CrMo, 30CrMo, 35CrMo, 12Cr1MoV, 12CrMoV, 20CrNi, 40CrNi, 20CrMnTi, 30CrMnSi, 12Mn2A, 16Mn2A, 45Mn2A, 50BA, 15CrMo 38CrA, 20CrMnSiA, 25CrMnSiA, 30CrMnSiA, 35rMnSiA
Thin steel sheet for automobile CR140BH, CR180BH, CR220BH, CR260BH, CR300BH, CR260/450DP, CR300/500DP, CR340/590DP, CR420/780DP, CR180IF, CR220IF, CR260IF
Hot-rolled steel strip

Hot-rolled steel strip is characterized by high product quality and is a true all-rounder. It is as versatile as its many applications.

Q195-Q345, 08, 08F, 08Al, 10-60, 65Mn, 60Si2MnA, 50CrVA, 50CrNiMoVA, T7-T10A, Cr06, Q355NHL

Thickness: 1.2-5.0 mm
Major equipment:
Hot-rolled strip finishing mill
Cold-rolled steel strip Cold-rolled strip is scale-free hot rolled steel that has been further processed through cold rolling, annealing, slitting, and edging to achieve extremely precise dimensional tolerances and customized properties including microstructure, chemistry, surface finish, and tempers.
50A, 50CrNiMoVA, 65Mn, 60Si2MnA, 50CrVA, T7-T10A, 40Mn, 15-65, 20CrMo, 30CrMo, 08, 08F, 08Al, Q195-Q235, Q345B, SPHC, SPCC, 20MnSi, 16Mn, 19Mn
Thickness: 0.15 ~ 3.0 mm
Main equipment: cold rolled strip steel six-high reversible rolling mill

Specific uses and applications of steel plate

Steel Plate is both corrosion and abrasion-resistant. It is manufactured to a much broader range of thicknesses than ordinary steel sheets. Plate steel is primarily used in applications where a super-structural framework and indestructible durability are required.

Not only is it produced for structural purposes, but it can also be implemented for general repairs too. In addition to great reinforcement purposes, Steel Plate is able to withstand immense stress from the harshest natural environments, mainly, the ocean.

It serves as a considerable advantage to the world of heavy machinery. Its durability allows for machining and wearable elements to last much longer.

Although it’s mostly used for reinforcement and bracing purposes, Plate Steel has proved to have a substantial degree of versatility.

What are the uses of steel plates?

Steel plates can be manufactured by large steel factories or smaller, more specialized plants. Steel plates are one of the many types of steel that can be produced, other types include steel bars, sheets, slabs, rolls, and more. Steel plates are often used for structural and construction applications, pressure vessels, marine and offshore equipment, and military applications. The grade, elements and parameters of a steel plate are also important in how it is used.

Construction

The construction industry requires many types of steel in all sizes. Steel plates can be found in buildings, bridges and on construction vehicles.

Pressure Vessel Plate

Pressure vessel plate is a type of steel plate used for storage containers. These storage containers can be boilers, gas tanks, or any unit that stores compressed gas or fluid. They can be manufactured to hold contents at outdoor temperatures or hold contents are more extreme temperatures. Depending on the purpose, these steel plates can be course-grain or fine-grain.

Marine

Steel plates are also used extensively in the shipbuilding industry. The plates are used for ships and barges or oil rigs and other offshore equipment. They may be manufactured structural parts or they may be implemented as repair pieces. Sometimes extremely durable steel plates are needed, especially in the construction of large offshore facilities.

Military

Military steel plates are used in tanks, jeeps, trucks and ground vehicles, as well as helicopters, jets and other aircraft. The Navy uses this steel for shipbuilding and naval repair.

Stainless steel plate

The properties of stainless steel are corrosion resistance, high ductility, attractive appearance and low maintenance. Stainless steel contains chromium, which provides the properties of corrosion resistance at high temperatures. Stainless steel can withstand corrosive or chemical environments due to its smooth surface. Stainless steel products are safe for long-term use with excellent resistance of corrosion fatigue.

Stainless steel plate specification and size (for reference)

Stainless steel sheet/plate is available in 300, 400 and 200 series. Each type has its own charac­te­ristics. The most popular grades are, 304 which can be easily roll-formed or shaped and due to its excellent corrosion resistance and weldability, it is one of the most popular grades available. 316 is an alloy that contains molybdenum which increases the corrosion resistance and is particularly effective in acidic environments as it provides a greater resistance to pitting corrosion. 321 is a variation of 304 with the addition of titanium, it is resistant to inter­gra­nular corrosion and has excellent weldability. Type 430 is a ferritic stainless steel alloy which offers good corrosion resistance and is predomi­nately used in the domestic and catering industries.

ASTM JIS AISI EN Mill's Standard
S30400  SUS304  304 1.4301  202
S30403  - 304L 1.4307  204Cu3
S31603  - 316L 1.4404   
S43000 SUS430 430 1.4016  

Other specifications are also available up to request.

Available size
Thickness Width Length Surface Finish
15-85 mm 914, 1219, 1524 mm 3048, 6069 mm
10 M
Black
3-8 mm 20-1524 mm Container Loading:
Max. 10M
Bulk: as request
No.1
8 up - 60 mm 30-1524 mm Max. 6096 mm No.1
Dimension and shape tolerance
Thickness Tolerance
8.0 mm < T ≦ 10.0 mm ±0.32 mm
10.0 mm < T ≦ 25.0 mm ±0.34 mm
25.0 mm < T ≦ 85.0 mm ±0.40 mm

Thickness Tolerance: According to 1/2 JIS G4304

Thickness Tolerance
T ≦ 10.0 mm -0 / +60 mm
10.0 mm < T ≦ 85.0 mm -0 / +65 mm
  • Length Tolerance: According to 1/2 JIS G4304
  • Width Tolerance: Max. Aim ±10 mm
  • Edge Crack: Max. 5 mm per side
Chemical Composition (For Reference)
Steel Grade
Ni% Max. Cr% Max. C% Max. Si% Max. Mn% Max. P% Max. S% Max. Mo% Max. Ti% Max. Other
SUS304 8.0~10.5 18.0~20.0 0.08 1 2 0.045 0.03 - - -
SUS304L 9.0~13.0 18.0~20.0 0.03 1 2 0.045 0.03 - - -
SUS316L 12.0~15.0 16.0~18.0 0.03 1 2 0.045 0.03 2.0~3.0 - -
SUS430 0.6 16.0~18.0 0.12 0.75 1 0.04 0.03 - - -

Spec. JIS G4304 G4305 G4312

The different grades used to classify stainless steel plates consist of numbers and numbers with the letters H and L in the combinations. Which industry uses this particular metal and for what purpose depends on the steel plate grade. Stainless steel that comes with letters in their grade means something and this dictates where these can be used.

The H and L used in stainless steel grades often refer to whether it has low or high carbon content. L is for stainless steel plates with low carbon and H is for those with high carbon. When a plate grade does not carry any of these two letters, these are then called straight grades. Straight grade stainless steel is known to carry at least .08% carbon in them, but there is no strict requirement stating that these metals need to have a minimum amount of carbon in them.

To further help you understand the uses of these different stainless steel grades, here are some of the more commonly produced stainless steel plate grades and where these are utilized:

304 – This comes in three variations – 304, 304H and 304L. Part of the 300 series, this particular plate grade is often used in the food and beverage industry. This is due to the fact that this particular grade has the ability to keep contamination probabilities very low. This metal contains around 18% chromium and around 8% nickel.

316 – Also part of the 300 series, this particular grade contains between 16% to 18% chromium and approximately 11% to 14% nickel. This is often used for environmental and marine applications due to its resistance to corrosion brought about by salty water.

410 – This is heat treatable steel and can be used for the manufacture of surgical instruments, as well as strainers used in the food industry.

Uses for stainless steel plates and sheets

There are many reasons why stainless steel plates are used for a wide variety of applications and products. One main reason is because of its high resistance to oxidation and corrosion. It is also resistant to abrasion and is easy to clean.

Stainless steel plates (and stainless steel in general) are also easy to form, has a clean and attractive appearance, and are relatively light yet very durable. These are also pretty malleable without compromising on strength, making it ideal for use with a lot of things.

Stainless steel is used by a huge number of industries and by many businesses due to this versatility, strength and corrosion resistance. The usage of these plates often depends on the plate grade. With so many plate grades available, you can be sure that this particular metal does see itself being used for a huge number of applications.

Uses for stainless steel sheets

Similar to stainless steel plate, the sheet metal has high tensile strength, durability and delivers an exceptional finish.

Stainless steel is thus ideal for food production and storage as it does not affect the flavour of the food and the corrosion resistance is an important factor when it comes into contact with acidic foods. Stainless steel is easily cleaned which keeps germs at bay, in turn maintaining the integrity of any sterile environment, including that of the medical industry.

Stainless steel sheets, also commonly known as Cold Rolled Products, can be moulded into shapes for making cookware, such as grills, sinks, pots and cookers. Stainless steel sheet is popular as a finish for refrigerators, freezers, countertops and dishwashers.

The sheet metal is available in flat pieces or coiled strips and is also useful when making licence plates for cars and even the base of light bulbs.

  • 304: For home appliances, cabinets, steel pipes, water heaters, boilers, medical facilities, building materials, chemical industry, food industry, agriculture, ship parts, etc.
  • 304L: Chemical, coal, and petrol industries.
  • 316: For facilities used in seawater, production machines of chemicals, dyes, oxalic acids or fertilizers; food industry, or facilities near seawater.
  • 316L: With special requirements of intergranular corrosion resistance in 316 applications.

Comparisons of steel plate grades

The reality is there are many nuances associated with steel plate and failure to understand them will result in many problems throughout its use in a project. The information in this eBook is meant to clear up many misconceptions.

Carbon steel plate is manufactured for a variety of applications based on its carbon content. Low carbon steel plate, depending on its thickness offers characteristics such as maximum cold forming capability, weldability and improved machining. Medium carbon steel plates (.40 - .50) that are silicon killed offers better strength capabilities but have limited machining and welding properties.

Other types of steel plate offer benefits for structure and construction applications, resistance to abrasion, and the ability to withstand high temperatures and pressures. Additionally, steel plate coils are available in low carbon, pickled and oiled, and black steel coils used for precision roller leveling. It may also be used for cutting standard and custom lengths up to 480”.

Steel plate standards

Structural steel shape properties, such as composition and strength are regulated by agreement between parties who choose to accept international standards. These international standards are created by formally recognized regulating boards, often times comprised of worldwide, volunteer members within respective industries.

It is customary for American made steel plate manufacturers to choose to have their hot rolled plates recognized by several of these governing bodies, such as ASTM International, ANSI, AISC, AISI, ASCE, ASME, and the AWS along with their European Union standards counterparts.

 
Abbreviation Full description
ASTM International American Society for Testing and Materials
ANSI American National Standards Institute
AISC American Institute of Steel Construction
AISI American Iron & Steel Institute
ASCE American Society of Civil Engineers
ASME American Society of Mechanical Engineers
AWS American Welding Society
What is carbon steel?

Iron and carbon are the most abundant materials present in steel. Pure iron is not particularly strong or hard on its own, so it is the addition of carbon that helps give steel its great strength.

The crude iron used to produce steel has a relatively high amount of carbon. Its carbon composition can be as high as 2.1%, which is the greatest amount of carbon a material can contain and still be considered steel.

However, iron can be processed further to reduce carbon. This manipulation of carbon alters several material properties, including:

Strength: The load a material can bear, measured by yield point and tensile strength. Yield point is the point at which a material deforms, but does not break, and tensile strength is the amount of stress needed to actually break a material.

Ductility: The amount a material can be stretched without becoming brittle. Ductility is measured by elongation, which is the percent the length of a material increases before it breaks.

Hardness: The wear resistance of material and machinability of material. This is usually measured on the Rockwell hardness scale or Brinell Hardness scale.

The carbon present in steel is typically reduced so that it fits into three main categories of carbon steel: low (or mild), medium and high carbon steel. Each of these categories contain different levels of carbon, show in the chart below.

Type of carbon steel Carbon composition
Low carbon/mild 0.05-0.25%
Medium carbon 0.26-0.60%
High carbon 0.61-1.50%

Carbon steel plate almost include all the common standards of steel plate/sheet.

  1. ASTM A36 plates – The most common standards of carbon steel plate
  2. ASTM A283 Grade A, B, C – Also most common material in carbon structural.
  3. ASTM A516 – For boiler, vessel steel plate.
  4. ASTM A537 – For heat treated carbon steel plate in fusion welded pressure vessels and structural steel plates.
  5. ASTM A573 – A kind of structural steel plate with carbon-manganese-silicon.
  6. ASTM A572 – ASTM A572 plate mechanical strength is higher than A36. Where with lower weight.
  7. ASTM A737 – For boiler, pressure vessels steel plate of low alloy steel. and etc..

So carbon steel plates have a widely coverage for different types of steel plates in different industries.

What is low carbon steel?

Also known as mild steel, low carbon steel has low strength relative to steel with higher carbon levels. Low carbon steel is the most ductile – or machinable – type of carbon steel as well.

Chemical alloys can also be added to low carbon steel to enhance desired properties without increasing the material’s weight. For example, if low carbon steel requires greater hardness for its desired application, manganese can be added to increase hardness without adding weight. Low carbon steel that contains additional alloys is typically referred to as high strength, low alloy (HSLA) steel.

Some of the most common low carbon steel plate grades, all stocked by us, include ASTM A36, A572 Grades 42 & 50 and A830-1020. Each of these grades have moderate strength, high ductility and lighter weight due to the low carbon content and addition of other alloys. These properties make low carbon steel ideal for use in structural applications like building construction, bridges and transmission towers, where materials must be able to withstand high stress while also being easy to form into structural shapes.

What is medium carbon steel?

Medium carbon steel provides a balance between low and high carbon steel, offering greater strength and hardness than low carbon steel while still remaining more ductile than high carbon steel. Medium carbon steel also typically contains other alloys, such as manganese, that also contribute to its properties.

In applications where greater toughness and hardness are required, medium carbon steel plate can receive heat treatments – such as quenching and tempering – that enhance these properties without compromising its machinability.

Quenching and tempering is a two-step heat treatment process. In the quenching step of this process, steel is heated to a temperature between 1,500-and 1,650-degrees Fahrenheit, then rapidly cooled with water. In the tempering step, the steel is then re-heated to a below-critical temperature – between 300 and 700 degrees – and air-cooled. This process alters the crystal grain structure of steel to enhance hardness and other mechanical properties.

Two common medium carbon steel plate grades that stocks are ASTM A516 Grade 70 and A830-1045. The moderate carbon composition and additional alloys give these grades – and other medium carbon grades – a balance of strength, hardness, ductility and wear resistance. These properties make medium carbon steel ideal for use in applications where materials must withstand strong forces without breaking or wearing out, such as machine parts – including gears, axles and bolts – pressure vessel tanks and automotive parts and components.

Main steel grades of carbon steel plate
Standard
Steel Grade
ASTM A36/A36M A36      
ASTM A283/A283M A283 Grade A A283 Grade B A283 Grade C A283 Grade D
ASTM A514/A514M A514 Grade A A514 Grade B A514 Grade C A514 Grade E
A514 Grade F A514 Grade H A514 Grade J A514 Grade K
A514 Grade M A514 Grade P A514 Grade Q A514 Grade R
A514 Grade S A514 Grade T    
ASTM A572/A572M A572 Grade 42 A572 Grade 50 A572 Grade 55 A572 Grade 60
A572 Grade 65      
ASTM A573/A573M A573 Grade 58 A573 Grade 65 A573 Grade 70  
ASTM A588/A588M A588 Grade A A588 Grade C A588 Grade K A588 Grade B
ASTM A633/A633M A633 Grade A A633 Grade C A633 Grade D A633 Grade E
ASTM A656/A656M A656 Grade 50 A656 Grade 60 A656 Grade 70 A656 Grade 80
ASTM A709/A709M A709 Grade 36 A709 Grade 50A573Grade70 A709 Grade 50S A709 Grade 50W
A709 Grade HPS50W A709 Grade HPS70W A709 Grade 100 A709 Grade 100W
A709 Grade HPS100W      
ASME SA36/SA36M SA36      
ASME SA283/SA283M SA283 Grade A SA283 Grade B SA283 Grade C SA283 Grade D
ASME SA514/SA514M SA514 Grade A SA514 Grade B SA514 Grade C SA514 Grade E
SA514 Grade M SA514 Grade P SA514 Grade Q SA514 Grade R
SA514 Grade S SA514 Grade T    
ASME SA572/SA572M SA572 Grade 42 SA572 Grade 50 SA572 Grade 55 SA572 Grade 60
  SA572 Grade 65      
ASME SA573/SA573M SA573 Grade 58 SA573 Grade 65 SA573 Grade 70  
ASME SA588/SA588M SA588 Grade A SA588 Grade B SA588 Grade C SA588 Grade K
ASME SA633/SA633M SA633 Grade A SA633 Grade C SA633 Grade D SA633 Grade E
ASME SA656/SA656M SA656 Grade 50 SA656 Grade 60 SA656 Grade 70 SA656 Grade 80
ASME SA709/SA709M SA709 Grade 36 SA709 Grade 50 SA709 Grade 50S SA709 Grade 50W
SA709 Grade HPS50W SA709 Grade HPS70W SA709 Grade 100 SA709 Grade 100W
SA709 Grade HPS100W      
EN10025-2 S235JR S235J0 S235J2 S275JR
S275J0 S275J2 S355JR S355J0
S355J2 S355K2 S420J0  
EN10025-3 S275N S275NL S355N S355NL
S420N S420NL S460N S460NL
EN10025-4 S275M S275ML S355M S420ML
S355ML S460M S420M S460ML
EN10025-6 S460Q S460QL S460QL1 S500Q
S500QL S500QL1 S550Q S550QL
S550QL1 S620Q S620QL S620QL1
S690Q S690QL S890Q S690QL1
S890QL S890QL1 S960Q S960QL
JIS G3101 SS330 SS400 SS490 SS540
JIS G3106 SM400A SM400B SM400C SM490A
SM490B SM490C SM490YA SM490YB
SM520B SM520C SM570  
DIN 17100 St37-2 USt37-2 RSt37-2 St37-3
St52-3      
DIN 17102 StE255 WStE255 TStE255 EStE255
StE285 WStE285 TStE285 EStE285
StE315 WStE315 TStE315 EStE315
StE355 WStE355 TStE355 EStE355
StE380 WStE380 TStE380 EStE380
StE420 WStE420 TStE420 EStE420
StE460 WStE460 TStE460 EStE460
StE500 WStE500 TStE500 EStE500
GB/T700 Q235A Q235B Q235C Q235D
Q275      
GB/T1591 Q345A Q345B Q345C Q345D
Q345E Q390A Q390B Q390C
Q390D Q390E Q420A Q420B
Q420C Q420D Q420E Q460C
Q460D Q460E    
GB/T16270 Q460C Q460D Q460E Q460F
Q500C Q500D Q500E Q500F
Q550C Q550D Q550E Q550F
Q620C Q620D Q620E Q620F
Q690C Q690D Q690E Q690F
Q800C Q800D Q800E Q800F
Q890C Q890D Q890E Q890F
Q960C Q960D Q960E Q960F

 


Structural steel plate

Structural steel plate used in construction must meet certain criteria such as high strength, formability, ability to withstand subzero temperatures and weldability.

Plate and structural steel, often referred to as P&S in the scrap industry, is a cut grade of ferrous scrap that is presumed to be free of any contaminates. This clean cut steel scrap, includes items like clean open hearth steel plates, structural shapes, crop ends, shearings, and broken steel tires.

ASTM A283: This grade is the standard specification for low and intermediate tensile strength carbon steel plates. It covers four grades of carbon steel plates for general applications, such as manufacturing storage tanks and low pressure, temperature controlled vessels. It is formed through melt processing by either open-hearth, electric furnace, or basicoxygen.

ASTM A36: This steel is produced using a minimum yield of 36,000 psi. It has all the qualities used in structural projects requiring weldments, bolting and riveting fabrications. You will find this grade of carbon steel used most often in the construction of buildings, bridges and oil rigs.

ABS Grade A, Grade B, Grade ADH36, Grade DH36, and Grade EH36: This steel is used almost exclusively in shipbuilding, especially in the construction of ships, barges, and marine equipment. It has a tensile strength of 58 to 71 ksi, and a minimum yield of 34 ksi.


Abrasion resistant steel plate

Abrasion resistant (AR) steel plate is a high-carbon alloy steel plate. This means that AR is harder due to the addition of carbon, and formable and weather resistant due to added alloys.

Carbon added during the formation of the steel plate substantially increases toughness and hardness, but reduces strength. Therefore, AR plate is used in applications where abrasions and wear and tear are the main causes of failure, such as industrial manufacturing, mining, construction and material handling. AR plate is not ideal for structural construction uses like support beams in bridges or buildings.

Developed according to a specific carbon-manganese specification, this steel plate is designed to withstand wear resistance many times better than ordinary steel plate.

AR360: This plate offers minimum Brinell rating of 360 and a tensile strength of 177,000 psi, ranking the material medium for hardness and strength. Uses for this steel include the manufacture of heavy construction equipment.

AR400: This steel provides a high degree of hardness and strength because of its quenched and tempered chrome-moly, boron treatment. AR400 plate is resistant to corrosion from atmospheric conditions and protects well against impact abrasion. Uses for this plate include material handling equipment for mining.

AR500: This grade of steel is fabricated through heat treatment to achieve through-hardening as well as improved welding and forming capabilities. With a tensile strength of 247 ksi and a minimum yield of 187 ksi, it provides extraordinary protection from wear, including rub wear, slide wear, and heavy wear. It is also able to withstand high impact stress, regardless of temperature.

Industrial AR Steel Plate

Abrasion resistant steel plate is commonly used in energy, industrial manufacturing, infrastructure, and more. Additional applications include:

  • Mining
  • Construction
  • Material Handling
Alloy steel plates

Alloy steel plates

Alloy Steel Plates are steel these are alloyed with a different elements in overall quantities among 1.0% and 50% by weight to enhance its mechanical properties. Alloy steels have to type which is low-alloy steels and high-alloy steels. The difference between the two is relatively arbitrary.

Alloy steel plates are defined as steel plates with a definite range or definite minimum quantity of additional elements, depending on the alloy.

Common alloying elements include:

  • Aluminum
  • Boron
  • Chromium up to 3.99%
  • Cobalt
  • Columbium
  • Molybdenum
  • Nickel
  • Titanium
  • Tungsten
  • Vanadium
  • Zirconium
Standard Steel Grade
EN10083-3 38Cr2 41CrS4 50CrMo4 51CrV4
46Cr2 25CrMo4 30CrNiMo8 20MnB5
34Cr4 25CrMoS4 34CrNiMo6 30MnB5
34CrS4 34CrMo4 35NiCr6 38MnB5
37Cr4 34CrMoS4 36NiCrMo16 27MnCrB5-2
37CrS4 42CrMo4 39NiCrMo3 33MnCrB5-2
41Cr4 42CrMoS4 30NiCrMo16-6 39MnCrB6-2
GB/T 3077 20Mn2 20MnVB 12CrMoV 20CrNi
30Mn2 40MnVB 35CrMoV 40CrNi
35Mn2 20MnTiB 12Cr1MoV 45CrNi
40Mn2 25MnTiBRE 25Cr2MoVA 50CrNi
45Mn2 15Cr 25Cr2Mo1VA 12CrNi2
50Mn2 15CrA 38CrMoAl 12CrNi3
20MnV 20Cr 40CrV 20CrNi3
27SiMn 30Cr 50CrVA 30CrNi3
35SiMn 35Cr 15CrMn 37CrNi3
42SiMn 40Cr 20CrMn 12Cr2Ni4
20SiMn2MoV 45Cr 40CrMn 20Cr2Ni4
25SiMn2MoV 50Cr 20CrMnSi 20CrNiMo
37SiMn2MoV 38CrSi 25CrMnSi 40CrNiMoA
40B 12CrMo 30CrMnSi 18CrNiMnMoA
45B 15CrMo 30CrMnSiA 45CrNiMoVA
50B 20CrMo 35CrMnSiA 18Cr2Ni4WA
40MnB 30CrMo 20CrMnMo 25Cr2Ni4WA
45MnB 30CrMoA 40CrMnMo  
20MnMoB 35CrMo 20CrMnTi  
15MnVB 42CrMo 30CrMnTi  

As plates, these include strength, hardness, toughness, wear resistance and corrosion resistance. Many of the alloy steels are easy to machine, stamp and fabricate and can be manufactured to precise tolerances.


Boiler and pressure vessel steel plate

Normal and high-strength rolled steel plate is one of the main structural materials in the manufacture of boilers, vessels and tanks for the transportation and storage of liquid and gaseous substances, as well as various technological operations under pressure.

As plates, these include strength, hardness, toughness, wear resistance and corrosion resistance. Many of the alloy steels are easy to machine, stamp and fabricate and can be manufactured to precise tolerances.

Common alloying elements include:

  • Aluminum
  • Boron
  • Chromium up to 3.99%
  • Cobalt
  • Columbium
  • Molybdenum
  • Nickel
  • Titanium
  • Tungsten
  • Vanadium
  • Zirconium
Standard Steel Grade
EN10083-3 38Cr2 41CrS4 50CrMo4 51CrV4
46Cr2 25CrMo4 30CrNiMo8 20MnB5
34Cr4 25CrMoS4 34CrNiMo6 30MnB5
34CrS4 34CrMo4 35NiCr6 38MnB5
37Cr4 34CrMoS4 36NiCrMo16 27MnCrB5-2
37CrS4 42CrMo4 39NiCrMo3 33MnCrB5-2
41Cr4 42CrMoS4 30NiCrMo16-6 39MnCrB6-2
GB/T 3077 20Mn2 20MnVB 12CrMoV 20CrNi
30Mn2 40MnVB 35CrMoV 40CrNi
35Mn2 20MnTiB 12Cr1MoV 45CrNi
40Mn2 25MnTiBRE 25Cr2MoVA 50CrNi
45Mn2 15Cr 25Cr2Mo1VA 12CrNi2
50Mn2 15CrA 38CrMoAl 12CrNi3
20MnV 20Cr 40CrV 20CrNi3
27SiMn 30Cr 50CrVA 30CrNi3
35SiMn 35Cr 15CrMn 37CrNi3
42SiMn 40Cr 20CrMn 12Cr2Ni4
20SiMn2MoV 45Cr 40CrMn 20Cr2Ni4
25SiMn2MoV 50Cr 20CrMnSi 20CrNiMo
37SiMn2MoV 38CrSi 25CrMnSi 40CrNiMoA
40B 12CrMo 30CrMnSi 18CrNiMnMoA
45B 15CrMo 30CrMnSiA 45CrNiMoVA
50B 20CrMo 35CrMnSiA 18Cr2Ni4WA
40MnB 30CrMo 20CrMnMo 25Cr2Ni4WA
45MnB 30CrMoA 40CrMnMo  
20MnMoB 35CrMo 20CrMnTi  
15MnVB 42CrMo 30CrMnTi  
Boiler steel application

Heat-resistant steel for boilers in the boiler industry is used to produce boiler bodies and vessels, as well as tanks to transport liquefied gases, petroleum products and other liquid and gaseous goods; and to manufacture fittings, valves and other auxiliary elements for pressure equipment.

Hot-rolled steel sheets and coils manufacturing processes

Boiler and pressure vessel steel plate

Pressure vessel steel plate covers carbon steel and alloy steel grades, which are designed for use in making pressure vessels, boilers, heat exchangers and any other vessels and tanks that to store liquid or gas at high pressures. It includes applications like below or similar:

  • Crude Oil Storage Tanks
  • Natural Gas Storage Tanks
  • Chemicals and Liquid Storage Tanks
  • Firewater Tanks
  • Diesel Storage Tanks
  • Gas Cylinders for Welding
  • Gas Cylinders for Cooking in peoples daily life
  • Oxygen Cylinders for Diving

There are a wide range of different liquid and chemicals that need to be stored under pressure.  Such us food, milk, plam oil, crude oil, natural gas includes their distillates to highly lethal acides which is bad to environments, so these liquid or gas shall be kept in high or low temperatures. Therefore, pressure vessel plates covers a wide range of steel grades which to use in different cases.

Standard
Steel Grade
ASTM A202/A202M A202 Grade A A202 Grade B    
ASTM A203/A203M A203 Grade A A203 Grade B A203 Grade D A203 Grade E
A203 Grade F      
ASTM A204/A204M A204 Grade A A204 Grade B A204 Grade C  
ASTM A285/A285M A285 Grade A A285 Grade B A285 Grade C  
ASTM A299/A299M A299 Grade A A299 Grade B    
ASTM A302/A302M A302 Grade A A302 Grade B A302 Grade C A302 Grade D
ASTM A387/A387M A387 Grade 11 Class1 A387 Grade 11 Class2 A387 Grade 12 Class1 A387 Grade 12 Class2
A387 Grade 22 Class1 A387 Grade 22 Class2 A387 Grade 5 Class1 A387 Grade 5 Class2
ASTM A515/A515M A515 Grade 60 A515 Grade 65 A515 Grade 70  
ASTM A516/A516M A516 Grade 55 A516 Grade 60 A516 Grade 65 A516 Grade 70
ASTM A517/A517M A517 Grade A A517 Grade B A517 Grade E A517 Grade F
A517 Grade H A517 Grade P A517 Grade Q A517 Grade S
ASTM A533/A533M A533 Grade A A533 Grade B A533 Grade C A533 Grade D
ASTM A537A537M A537 Class 1 A537 Class 2 A537 Class 3  
ASTM A612/A612M ASTM A612M      
ASTM A662/A662M A662 Grade A A662 Grade B A662 Grade C  
ASTM A841/A841M A841 Grade A A841 Grade B A841 Grade C A841 Grade D
A841 Grade E A841 Grade F    
EN10028-2 P235GH P265GH P295GH P355GH
16Mo3      
EN10028-3 P275NH P275NL1 P275NL2 P355N
P355NH P355NL1 P355NL2 P460NH
P460NL1 P460NL2 P275N P460N
EN10028-5 P355M P355ML1 P355ML2 P420M
P420ML1 P420ML2 P460M P460ML1
P460ML2      
EN10028-6 P355Q P355QH P355QL1 P355QL2
P460Q P460QH P460QL1 P460QL2
P500Q P500QH P500QL1 P500QL2
P690Q P690QH P690QL1 P690QL2
JIS G3115 SPV235 SPV315 SPV355 SPV410
SPV450 SPV490    
JIS G3103 SB410 SB450 SB480 SB450M
SB480M      
GB713 Q245R Q345R Q370R 18MnMoNbR
15CrMoR 14Cr1MoR 13MnNiMoR 12Cr2Mo1R
12Cr1MoVR      
GB3531 16MnDR 15MnNiDR 09MnNiDR  
DIN 17155 HI HII 17Mn4 19Mn6
15Mo3 13CrMo44 10CrMo910  

The material grades that between pure carbon steel pressure vessel grades and stainless steel plates. Typically standards is ASTM A387, 16Mo3 these steels have improved corrosion and temperature resistance over the standard carbon steels but without the cost of stainless steels (due to their lower nickel and chromium content).

Where are boilers and pressure vessels used?

There are many uses for boilers and pressure vessels both in industry and the private sector. Here are just a few examples:

  • Diving cylinders
  • Domestic hot water storage tanks
  • Compressed air storage tanks
  • Passenger cabin of an aircraft
  • Recompression chamber
  • Gas nuclear reactor
  • Industrial boiler
  • Road tanker
  • Petrochemical storage and transport tanks

Why do boilers and pressure vessels need specific plate steel?

Many factors are considered when designing boilers and pressure vessels. These include the size and weight of the vessel and its contents, the internal and external forces, the temperatures including ambient and operational, stresses, corrosion and much more. With these specific operational requirements, it makes sense that a safe and effective design hinges the materials used.

Boiler and pressure vessel grade steel comes in a variety of grades and thicknesses, and are designed to withstand the immense internal pressure. These grades are fully killed, fine grained carbon-manganese steels produced by hot rolling and normalising. Importantly, these steel grades are designed to leak before burst.

There are many grades available, such as PT460N, PT490NR, and PT540T to name only a few. Boiler and pressure vessels steel grades are available in varying thicknesses for varying purposes. For example, there are steel grades with elevated temperature properties available.


Weather resistant steel plate

Weather Resistant Steel Plates are used in applications that last longer and are exposed to the atmosphere for long term. Applications that have to have plates in the open often use these Corrosion Resistant Steel Plates in combination with pipes, fittings and flanges. The material can vary in composition but all the weathering steels types have low carbon, less than 0.3% by weight. This low carbon allows for the ductility and toughness of the Weather Resistant Steels Sheet. The name comes from the ability of the material to withstand weathering or atmospheric conditions over time. The specialty of the Corten Weather Resistant Steels is that it forms an oxide layer on the surface. This oxide layer cannot oxidize any further, so it acts as a barrier between the steels inside the layer and the oxidizing agents to the outside of the plates.

Standard Steel Grade
CORTEN Corten A Corten B    
ASTM A588/A588M A588Grade A A588Grade B A588Grade C A588Grade K
ASME SA588/SA588M SA588Grade A SA588Grade B SA588Grade C SA588Grade K
EN 10025-5 S235J0W S235J2W S355J0WP S355J2WP
S355J0W S355J2W S355K2W  
EN 10155 S235J0W S235J2W S355J0WP S355J2WP
S355J0W S355J2G1W S355J2G2W S355K2G1W
S355K2G2W      
TB/T 1979 08CuPVRE 09CuPTiRE-A 09CuPTiRE-B 09CuPCrNi-A
09CuPCrNi-B 05CuPCrNi    
GB/T 4171 Q295GNH Q355GNH Q265GNH Q235NH
Q310GNH Q295NH Q355NH Q415NH
Q460NH Q500NH Q550NH  
JIS G 3114 SMA400AW SMA400BW SMA400CW SMA400AP
SMA400BP SMA400CP SMA490AW SMA490BW
SMA490CW SMA490AP SMA490BP SMA490CP
SMA570W SMA570P    
JIS G3125 SPA-H SPA-C    
A242/A242M A242 Type 1 A242 Type 2 A242 Type 3 A242 Type 4
A242 Type 5      

ASTM Corten steel plate is widely used in vehicle, bridge, tower, container and so on field. In practical application, ASTM Corten steel plate has many advantages, which leads to weather plate in container, railway vehicle, oil derrick and other environments with more contact with the atmosphere, and it can also be applied to some vessels and other structural parts containing hydrogen sulfide corrosive medium.