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Our highly-skilled manpower is dedicated to producing the finest quality steel pipe, pipe fittings, meeting a wide variety of material specifications. Their knowledge and experience of metal properties, welding procedures and quality control have set the pace and standard expected by our customers world-wide.

Steel can be categorized into four basic groups based on the chemical compositions:

Long radius elbows
Carbon steel
is formed when two elements, iron and carbon, is combined with carbon being used as the alloying element.
ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
Stainless steel
is more expensive than carbon and alloy steel and only accounts for a small number of steel used in the global...
ASTM A335 P22 is the part of ASTM A335, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.
Alloy steel
is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight...
There are several different material of abrasion resistant pipe

Each grade is typically made to a specific Brinell hardness value, as opposed to other steels that are made with tensile strength and toughness in mind.

SHS ceramic lined
SHS are currently being developed the world over for the production of powders and near-net shape components of advanced materials.
Ceramic tile lined pipe
has very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe and gives a very smooth surface.
Ceramic ring composite steel pipe
The wear resistant ceramic ring is a special kind of ceramic with Al2O3 as the main raw material and the rare metal oxide as the flux.

Abrasion occurs when materials are rubbed across one another over a period of time.

Bi Metal Clad pipe
Bi Metal Clad
Bimetal Clad Pipe and Bend are cast with mold vanishing vacuum suction casting cladding process.
Rare earth metal wear resistant pipe
Rare earth alloy wear-resistant high chromium cast iron pipe under compared with the high manganese steel materials

What Is Abrasion Resistant Steel

Some abrasion is intentional, such as sanding, grinding, and blasting. However, unintentional abrasion can lead to component failure so it is important to use the proper materials to ensure that surface wear does not lead to unanticipated breakdown of structures or parts. While steel in general has excellent resistance to abrasion, not all steels are equal.

How Does It Work?

The chemical composition of abrasion resistant steel is one of the attributes that make it more immune to wear than other types of steel. There are several alloys that can be used increase the abrasion resistance. Carbon helps block dislocations, which increases the hardness and strength of a steel. The added carbon also allows the steel to form microstructures with increased hardness when heated and quenched. There are other elements that can be added to abrasion resistant steel to increase its hardness value too. Chromium and manganese are also added to abrasion resistant steels to help reduce the negative effects caused by wear.

Heat treatment is another factor that helps the steel resist abrasion. Abrasion resistant steel must have a microstructure that allows it to have a high hardness. This is accomplished, in part, by adding the proper alloying elements. However, this alone is not enough to ensure the proper microstructure is formed. The steel must also undergo a heating and a rapid quenching process to form microstructures such as martensite and bainite which gives the steel the required high hardness values. Care must be taken when welding or heating abrasion resistant steels. If they are heated to a high enough temperature, it may have an annealing effect on the steel, causing it to lose some of its hardness and, therefore, its abrasion resistance.

What Types of Abrasion resistant pipes Are Available?

There are several different abrasion resistant steel grades. Each grade is typically made to a specific Brinell hardness value, as opposed to other steels that are made with tensile strength and toughness in mind. This is because hardness is one of the most important factors when trying to increase abrasion resistance.

What is SHS?

Self-propagating high temperature synthesis (SHS) is used to describe a process in which the initial reagents (usually powders), when ignited, spontaneously transform into products due to the exothermitic heat of reaction.

A well-known example of SHS reaction is the thermite reaction given below:

Fe2O3 + Al → 2Fe + Al2O3

This reaction generates temperatures above the melting point of alumina and is used in the thermit welding process for joining railway lines.

Several other terminologies - such as combustion synthesis, gasless combustion or self-propagating exothermic reaction - are used to describe the process.

The types of material that can be formed using this process include metal borides, silicides, carbides, nitrides, sulphides, aluminides and oxides.



Carbon steelspecification, Standard and identification

Carbon steel pipe tubing is used to transport fluids and gases in a variety of pneumatic, hydraulic, and process applications.

ASTM/ ASME- Standards for pipes
ASTM A53
Standard Spec. for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A106 / A106M - 11
Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A179 Standarts
specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

Carbon steel pipe cooling method varies with the material. For most kinds of steel use natural cooling to meet the requirements.

Carbon steel pipe is the most commonly and widely used in the gas project field.
The large diameter coated steel pipes are widely used in tap water, natural gas, petroleum, chemical, pharmaceutical, telecommunications, electricity, large diameter steel marine engineering field generally less than the outer diameter of the tubes 89 are collectively referred to as small-diameter steel pipe.

Carbon steel tube mechanical properties is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks.

Carbon steel pipe anti-rust oil: it is with a high corrosion resistance and adhesion,which does not contain harmful substances such as formaldehyde, benzene, heavy metals, environmental protection and the operator's physical and mental health.

Density is calculated by dividing the mass by the volume. The density of carbon steel is approximately 7.85 g/cm3 (0.284 lb/in3).

Improving the performance of the steel is two ways, First, adjusting the chemical composition of the steel alloying; the other is the heat treatment, heat treatment and shaping deformation combination of approaches. In the field of modern industrial technology, heat treatment to improve the performance of the steel still occupy a dominant position.

Inner diameter of seamless steel pipe is more than 6.0mm and wall thickness is less than 13mm annealed seamless steel pipe material, which can be used W-B75 Webster Hardness test with very fast, easy, suitable for rapid non-destructive of the seamless steel pipe material qualified inspection.

Low carbon steel is a type of metal that has an alloying element made up of a relatively low amount of carbon. Typically, it has a carbon content that ranges between 0.05% and 0.30% and a manganese content that falls between 0.40 and 1.5%. Low carbon steel is one of the most common types of steel used for general purposes, in part because it is often less expensive than other types of steel.

Carbon steel pipe rusting

Carbon steel pipe anti-rust oil: it is with a high corrosion resistance and adhesion,which does not contain harmful substances such as formaldehyde, benzene, heavy metals, environmental protection and the operator's physical and mental health.

Brinell hardness (HB) with a certain diameter of the steel balls or tungsten carbide balls, pressed into the pattern surface of a predetermined test force (F), after the predetermined hold time after drop test force, the diameter of the measurement sample surface indentation (L).

Steel is an alloy that mostly contains iron. But its properties can be changed to suit specific requirements by adding certain other elements.

Encountered hole problems are very common in the welding process, welding materials drying, corrosion of the base metal and welding consumables, welding process is not stable enough oil and impurities and to protect the poor will be varying degrees of blowholes.

The strip is into the welded pipe unit and by the multi-channel roll rolling, gradually rolled strip steel, formed with an opening gap round tube, adjust the amount of reduction squeeze rollers, so that the weld gap control for carbon steel pipe in 1 ~ 3mm, and to weld ends flush. If the gap is too large and will result in reduced proximity effect, eddy current lack of heat, poor weld joint between grain yield incomplete fusion or cracking.

Delivery standard length of carbon steel pipe, also known as user requirements length or the length of the contract, there are four provisions in the existing standards

Carbon steel internal defects is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks.

Carbon steel tube mechanical properties is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks.

Carbon steel defect is caused by the equipment, processes and operations in carbon steel smelting and rolling (forging) process, including scarring, cracks, residual shrinkage, layered, white point, segregation, non-metallic inclusions, such as osteoporosis and banded.

Related carbon steel products:
Carbon steel flanges
Carbon Steel Flanges
that is, the main material is carbon steel flange or end flange connectors. It contains carbon steel flange, known as carbon steel flange.
Carbon steel stub end
Carbon steel stub end
The stub ends are provided with a standard weld bevel and can be available in squared, flanged, victaulic and threaded ends.
ASTM A335 P22 is the part of ASTM A335, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.
Carbon steel caps
are used for connecting pipes of different diameters and find wide applications in various chemicals, construction industries.

Alloy steel specification, Standard and identification

Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.

ASTM A335 Chrome Moly Pipe
Standards for Alloy pipes & tubes
ASTM A213 T91
ASTM A213M-09
for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ASTM A333
Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications.
ASTM A335 P22 is the part of ASTM A335, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.
ASTM A335
Astm A335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service
Related alloy steel products:
Carbon steel flanges
Alloy steel flanges
Alloy flanges are designed with care using current techniques under the visionary guidance of accomplished professionals at manufacturing unit.
稀土合金耐磨管
Rare earth alloy wear-resistant tube
Rare earth alloy wear resistant pipe has the characteristics of fast velocity and high flow rate is used for pneumatic, pump slurry, etc.
Wear resistant alloy composite pipe
Wear resistant alloy composite pipe
Wear-resistant alloy steel pipe as the base, lined with ultra-wear-resistant alloy, through the centrifugal casting, metallurgy combined to form a solid.

ASTM A519- specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.

EN 10216 is a European standard suitable for seamless steel tubes for pressure purposes.

EN 10216 non alloy steel tubes EN 10216 non alloy steel tubes

The main steel grade:
  • P195GH, P235GH, P265GH, 13CrMo4-5, 10CrMo9-10
  • Other grades of steel pipe can be provided based on negotiations.
Related stainless steel products


About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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