ASTM A213 T12 Seamless Alloy Pipes

SA213T12 is a Seamless ferritic low alloy steel boiler tube used in super heater elements, and heat exchangers

ASTM A213 T12 Tube is made up of a material composition of carbon, manganese, phosphorus, sulfur, silicon, 0.8% chromium and 0.44% molybdenum minimum. The material has good corrosion resistance, strength and high heat tolerance.

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ASTM A213 T12 Seamless Alloy Pipes

ASTM A213 T12 Grades containing the letter H in their designation have requirements different from those of similar grades not containing the letter H.

These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. ASTM A213 T12 tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and in addition to heating for hot forming. The ferritic alloy and ferritic stainless steels shall be reheated. On the other hand, austenitic stainless steel tubes shall be furnished in the heat-treated condition. Alternatively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution temperature, tubes may be individually quenched in water or rapidly cooled by other means. Tension test, hardness test, flattening test, and flaring test shall be done to each tube. Also, each tube shall be subjected to the nondestructive electric test or hydrostatic test.

Chemical Composition(%) for ASTM A213 T12 Low Alloy Steel

UNS Designation K11562
Carbon 0.05-0.15
Manganese 0.30–0.61
Phosphorus 0.025
Sulfur 0.025
Silicon 0.50
Nickel
Chromium 0.80-1.25
Molybdenum 0.44-0.65
Vanadium
Boron
Niobium
Nitrogen
Aluminum
Tungsten
Other Elements

Mechanical properties for ASTM A213 T12 Low Alloy Steel

Tensile strength(min) 415Mpa
Yield strength(min) 220Mpa
Elongation 30%
Delivery condition annealed

Scope

This specification2 covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, etc.

(A) Maximum, unless range or minimum is indicated. Where ellipses (...) appear in this table, there is no requirement, and analysis for the element need not be determined or reported.
(B) It is permissible to order T2 and T12 with a sulfur content of 0.045 max. See 16.3.
(C) Alternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, defined as after austenitizing and cooling to room temperature but prior to tempering. Hardness testing shall be performed at mid-thickness of the product. Hardness test frequency shall be two samples of product per heat treatment lot and the hardness testing results shall be reported on the material test report.
(D) The terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.
(A) Maximum, unless a range or minimum is indicated. Where ellipses (...) appear in this table, there is no minimum and analysis for the element need not be determined or reported.
(B) The method of analysis for Nitrogen shall be a matter of agreement between the purchaser and the producer.
(C) For these alloys, there is no common grade designation. The UNS number uniquely identifies these alloys.
(D) For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040% is necessary in Grades TP304L, TP304LN, TP316L, and TP316LN.
(E) Grade S30434 shall have (Ti + 1/2 Nb) of not less than 2 times and not more than 4 times the carbon content.
(F) Grade TP347LN shall have an Nb content of not less than 15 times the carbon content.
(G) Grade TP348 shall have an Nb + Ta content of not less than 10 times the carbon content and not more than 1.10%.
(H) Grade TP348H shall have an Nb + Ta content of not less than 8 times the carbon content and not more than 1.10%.
(I) Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements.
(J) Al + Ti shall be 0.85 % min; 1.20 % max.
(K) Grade TP444 shall have Ni + Cu = 1.00 max.
(L) Grade TP444 shall have Ti + Nb content not less than 0.20 + 4(C+N) and not more than 0.80 %.
(M) N08020 shall have an Nb + Ta content of not less than 8 times the carbon content and not more than 1.00%.
(N) The terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.

Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements.

The tubing sizes and thicknesses usually furnished to this specification are 1/8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

Referenced Documents (purchase separately)

ASTM Standards

AWS Specifications

Terminology

Definitionx—For definitions of terms used in this speci- fication, refer to Terminology A 941.

Ordering Information

It shall be the responsibility of the purchaser to specify all requirements that are necessary for products under this specification. Such requirements to be considered include, but are not limited to, the following:

1.1 Quantity (feet, metres, or number of lengths),

1.2 Name of material (seamless tubes),

1.3 Grade (Tables 1 and 2),

1.4 Condition (hot finished or cold finished),

1.5 Controlled structural characteristics (see 6.3),

1.6 Size (outside diameter and minimum wall thickness, unless average wall thickness is specified),

1.7 Length (specific or random),

1.8 Hydrostatic Test or Nondestructive Electric Test (see 10.1),

1.9 Specification designation and year of issue,

1.10 Increased sulfur (for machinability, see Note B, Table 1, and 15.3), and

1.11 Special requirements and any supplementary require- ments selected.

General Requirements

Product furnished to this specification shall conform to the requirements of Specification A 1016/A 1016M, including any supplementary requirements that are indicated in the purchase order. Failure to comply with the general require- ments of Specification A 1016/A 1016M constitutes noncon- formance with this specification. In case of conflict between the requirements of this specification and Specification A 1016/ A 1016M, this specification shall prevail.

Materials and Manufacture

1 Manufacture and Condition—Tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished.

Heat Treatment

1 Ferritic Alloy and Ferritic Stainlexx Steelx—The fer- ritic alloy and ferritic stainless steels shall be reheated for heat treatment in accordance with the requirements of Table 3. Heat treatment shall be carried out separately and in addition to heating for hot forming.

2 Auxtenitic Stainlexx Steelx—All austenitic tubes shall be furnished in the heat-treated condition, and shall be heat treated in accordance with the requirements of Table 3. Alter- natively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution treatment temperature specified in Table 3, tubes may be individually quenched in water or rapidly cooled by other means (direct quenched).

3 If any controlled structural characteristics are required, these shall be so specified in the order as to be a guide as to the most suitable heat treatment.


Process

Cold drawn seamless steel tube deformed process

Cold Drawn Seamless Mechanical Tubing (CDS) is a cold drawn 1018/1026 steel tube which offers uniform tolerances, enhanced machinability and increased strength and tolerances compared to hot-rolled products.

Cold drawn seamless steel tube deformed process

Cold drawn steel tube is with hot-rolled steel coil as raw material, and tandem cold rolling pickled to remove oxide scale, its finished rolling hard roll, rolling hard volumes due to the continuous cold deformation caused by cold hardening strength, hardness increased indicators declined tough plastic, stamping performance will deteriorate, which can only be used for simple deformation of the parts.

Rolling hard roll can be used as the raw material of the hot-dip galvanizing plant, hot dip galvanizing line set annealing line. Rolling hard roll weight is generally 6 to 13.5 tons, the coil diameter of 610mm.

Hot rolled seamless steel pipe deformed process

Hot-rolled seamless steel pipe production base deformation process can be summarized as three stages: perforation, extension and finishing.

Hot rolled seamless steel pipe deformed process

The main purpose of the perforation process is to become a solid round billet piercing hollow shell. Capillary in the specifications, accuracy and surface quality can not meet the requirements of the finished product, further improvements are needed to deform the metal through. The main purpose of the stretching machine is further reduced sectional view (main compression wall) for a larger axial extension, so that the capillary improved dimensional accuracy, surface quality and organizational performance.

After stretching machine rolled steel pipe shortage collectively need further molding mill in order to achieve the requirements of the finished pipe. Rolled steel due to pass in the method widely used in the production of seamless steel tubes.

So far, due to the method pass rolling steel can be divided into two categories: core pension without rolling rolling (hollow body rolling), and with the mandrel. Sizing machines, reducing mill and stretch reducing mill belonging to the hole without mandrel type continuous rolling mills are generally coffin. Its main purpose is to reduce the diameter of the deformation process or sizing get finished steel, the wall thickness of process control, can make thinning, thickening or nearly unchanged.

All the traditional hole-type rolling machine with mandrel belong to extend machine. The main purpose is to reduce the deformation process perforated capillary wall thickness and outer diameter roll passes in the deformation zone and the mandrel posed, for a larger axial extension. At the same time a certain improvement in the organization, performance, accuracy, surface quality.

Cut to Length

Before cutting pipe and tubing

No matter the material, measure the diameter of the pipe or tube to be cut to ensure that you use the right-size tube cutter for the job. When determining how to make a straight cut, use a tape measure and a pencil or other writing instrument to mark on the surface where you want to cut. If possible, mark around the circumference of a pipe, especially when cutting with a handsaw. Ensure that a cut is as straight as possible by securing the pipe with a vise, clamp, miter box or even duct tape to keep the length from shifting out of place while cutting.

After cutting pipe and tubing

  • Unless a cut is perfectly clean, you should expect to remove burrs from around the edge, especially after sawing.
  • Use a deburring tool to clean the edge after tube cutting.
  • You may opt to use a metal file on the cut of a metal pipe.
Cut to length

Application

Alloy steel pipes are ideally suitable for chemical, petrochemicals, and other energy-related applications.

The alloy steel pipe adopts high quality carbon steel, alloy structural steel and stainless & heat resisting steel as raw material through hot rolling or cold drawn to be made.

Alloy steel can be used in process area where carbon steel has limitation such as

  • High-temperature services such as heater tubes
  • Low-temperature services such as cryogenic application
  • Very high presser service such as steam header

As an important element of steel products, alloy steel pipe can be divided into seamless steel pipe and welded steel pipe according to the manufacturing technique and tube billet shape.

Here you can see the common alloy steel grade that you will come across.

  • For Pipes: ASTM A335 Gr P1, P5, P11, P9
  • For Wrought Fittings: ASTM A234 Gr.WP5, WP9, WP11
  • For Forged Fittings: ASTM A182 F5, F9, F11 etc.

Why the application of alloy steel pipe is wider than others

application

There are many kinds of materials used for transport in industrial production. Specifically we will have more choices and it is not limited to the use of alloy steel pipe. But even in the face of more choices, many people tend to choose alloy steel pipe. People make their own choices will have their own reasons. This means the alloy steel pipe application has its own advantages. Compared with transmission lines made of other materials, after it meets the basic application requirements, its quantity is lighter. Then in the practical application of alloy steel pipe, it will have more advantages because of this. Besides its physical characteristic advantage, it also has economic advantages. The wide application of alloy steel pipe is with kinds of reasons. So in practical usage, we can exploit the advantages to the full, in this way can we get more profits in these applications of alloy steel pipe.

What requirements should alloy steel pipe application meet

The transportation of kinds of gases or liquids in production needs to rely on alloy steel pipe. This shows that the actual role of alloy steel pipe application is important. High temperature resistant and low temperature resistant is the tolerance of temperature. In the practical application of alloy steel pipe, there will be many materials need to be transported. However their temperatures are not the same. So this can be the basic requirement to alloy steel pipe. It needs more corrosion resistance. Corrosion resistant material is the best material during transporting, because it is corrosion resistant. So it can be used in more occasions. And it is definitely very convenient for users.

The biggest advantages of alloy steel pipe

Can be 100% recycled, environmentally friendly, energy-saving, resource conservation, national strategy, national policy to encourage the expansion of the field of application of high-pressure alloy pipe. Of alloy steel pipe total consumption accounted steel in the proportion is only half of the developed countries, to expand the field of use of the alloy steel pipe to provide a wider space for the development of the industry. The future needs of the average annual growth of China’s high-pressure alloy steel pipe long products up to 10-12%.

Specification, standard and identification of alloy steel pipes

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.

Industries We Serve

Our team of experienced sales specialists proudly partners with gas and chemical processors, power generation plants, oil refineries, and related industries to offer piping components and value-added services.

The biggest advantages of alloy steel pipe can be 100% recycled, environmentally friendly, energy-saving, resource conservation, national strategy, national policy to encourage the expansion of the field of application of high-pressure alloy pipe. Of alloy tube total consumption accounted steel in the proportion is only half of the developed countries, to expand the field of use of the alloy tube to provide a wider space for the development of the industry. According to the Chinese Special Steel Association alloy pipe Branch Expert Group, the future needs of the average annual growth of China’s high-pressure alloy pipe long products up to 10-12%.


Inspection

Chemical composition inspection, mechanical properties test(tensile strength,yield strength, elongation, flaring, flattening, bending, hardness, impact test), surface and dimension test,no-destructive test, hydrostatic test.

PMI

identification of the chemical composition of the metal used to manufacture the fitting. Uses PMI sensors, including X-ray fluorescence or optical emission spectrometry.

PMI
PMI
PMI
PMI
PMI
PMI

Size measurement

Size measurement
Size measurement
Size measurement
Size measurement
Size measurement

Seamless pipes with compound bevels as per ASME B16-25 And ASTM A333

ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe
ASTM A333 Grade 8 Seamless Pipe

Delivery

Steel pipe delivery status(condition)

Steel pipe delivery status(condition): cold / hard (BK), cold / soft (BKW), after cold stress relief annealing (BKS), annealing (GBK), normalized (NBK).

Condition on delivery of steel pipe

Term Symbol Explanation
Cold-finished/hard (cold-finished as-drawn) BK No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft (lightly cold-worked) BKW After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed GBK After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized NBK The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

The general cold strip mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the mechanical properties of the corresponding standard specifies. Cold rolled steel surface quality, appearance, dimensional accuracy better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.

Cold rolled steel coil substrate products deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, PVC laminating steel plates, etc., so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.

Cold rolled steel coil finishing after annealing, cut the head, tail, trimming, flattening, smooth, heavy volume, or longitudinal clipboard. Cold-rolled products are widely used in automobile manufacturing, household electrical appliances, instruments, switches, buildings, office furniture and other industries. Steel plate strapping package weight of 3 to 5 tons. Flat sub-volume typically 3 to 10 tons / volume. Coil diameter 6m.

Packing

Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.

There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.

Steel strips bunding for fixed pipes

Our packing can meet any needs of the customers.

Packing
Packing
Packing
Packing
Packing
Packing

Placing steel pipes into containers

Packing
Packing
Packing
Packing
Packing
Packing
FAQ

Q&A

Our team of experienced sales specialists proudly partners with gas and chemical processors, power generation plants, oil refineries, and related industries to offer piping components and value-added services.

The most important and desired changes in alloy steel are

Alloy steels are made by combining carbon steel with one or several alloying elements, such as manganese, silicon, nickel, titanium, copper, chromium and aluminum. These metals are added to produce specific properties that are not found in regular carbon steel. The elements are added in varying proportions (or combinations) making the material take on different aspects such as increased hardness, increased corrosion resistance, increased strength, improved formability (ductility); the weldability can also change.

Alloying Elements & Their Effects

Pipes, Tubes and Hollow Sections

Norms

Grade

Alloying Elements

Commonly used alloying elements and their effects are listed in the table given below.

Alloying Elements Effect on the Properties
Chromium Increases Resistance to corrosion   and oxidation. Increases hardenability and wear resistance. Increases high   temperature strength.
Nickel Increases hardenability. Improves   toughness. Increases impact strength at low temperatures.
Molybdenum Increases hardenability, high   temperature hardness, and wear resistance. Enhances the effects of other   alloying elements. Eliminate temper brittleness in steels. Increases high   temperature strength.
Manganese Increases hardenability. Combines   with sulfur to reduce its adverse effects.
Vanadium Increases hardenability, high   temperature hardness, and wear resistance. Improves fatigue resistance.
Titanium Strongest carbide former. Added to   stainless steel to prevent precipitation of chromium carbide.
Silicon Removes oxygen in steel making.   Improves toughness. Increases hardness ability
Boron Increases hardenability. Produces   fine grain size.
Aluminum Forms nitride in nitriding steels.   Produces fine grain size in casting. Removes oxygen in steel melting.
Cobalt Increases heat and wear   resistance.
Tungsten Increases hardness at elevated   temperatures. Refines grain size.

Heat Treatment and Grain Size RequirementsA

Grade UNS
Number
Heat Treat Type Austenitizing/ Solutioning Temperature, min or range ºF [ºC] Cooling Media Subcritical Annealing or Tempering Temperature, min or range ºF [ºC] ASTM
Grain S
Ferritic Alloy Steels
T2 K11547 full or isothermal anneal
    normalize and temper
    subcritical anneal 1200 to 1350
          [650 to 730]  
T5 K41545 full or isothermal anneal
    normalize and temper 1250 [675]
T5b K51545 full or isothermal anneal
    normalize and temper 1250 [675]
T5c K41245 subcritical anneal air or furnace 1350 [730]C
T9 S50400 full or isothermal anneal
    normalize and temper 1250 [675]
T11 K11597 full or isothermal anneal
    normalize and temper 1200 [650]
T12 K11562 full or isothermal anneal
    normalize and temper
    subcritical anneal 1200 to 1350
          [650 to 730]  
T17 K12047 full or isothermal anneal
    normalize and temper 1200 [650]
T21 K31545 full or isothermal anneal
    normalize and temper 1250 [675]
T22 K21590 full or isothermal anneal
    normalize and temper 1250 [675]
T23 K40712 normalize and temper 1900–1975 1350–1470 [730–800]
      [1040–1080]      
T24 K30736 normalize and tempher 1800–1975 1350–1470 [730–800]
      [980–1080]      
T36 K21001 normalize and temper 1650 [900] D 1100 [595]
T91 K90901 normalize and temper 1900–1975 1350–1470 [730–800]
      [1040–1080]      
T92 K92460 normalize and temper 1900–1975 1350–1470 [730–800]
      [1040–1080]      
T122 K91261 normalize and temper 1900–1975 1350–1470 [730–800]
      [1040–1080]      
T911 K91061 normalize and temper 1900–1975 E 1365–1435
      [1040–1080]   [740–780]  
Austenitic Stainless Steels
TP201 S20100 solution treatment 1900 [1040]F water or other rapid cool
TP202 S20200 solution treatment 1900 [1040]F water or other rapid cool
XM-19 S20910 solution treatment 1900 [1040]F water or other rapid cool
S21500 solution treatment 1900 [1040]F,G water or other rapid cool
S25700 solution treatment 1900 [1040]F water or other rapid cool
S30150: solution treatment 1900 [1040]F water or other rapid cool
TP304 S30400 solution treatment 1900 [1040]F water or other rapid cool
TP304L S30403 solution treatment 1900 [1040]F water or other rapid cool
TP304H S30409 solution treatment 1900 [1040] water or other rapid cool 7
S30432 solution treatment 2000 [1100]F water or other rapid cool
S30434 solution treatment 2120 [1160] water or other rapid cool
TP304N S30451 solution treatment 1900 [1040]F water or other rapid cool
TP304LN S30453 solution treatment 1900 [1040]F water or other rapid cool
S30615 solution treatment 1900 [1040]F water or other rapid cool
S30815 solution treatment 1920 [1050] water or other rapid cool
TP309S S30908 solution treatment 1900 [1040]F water or other rapid cool
TP309H S30909 solution treatment 1900 [1040] water or other rapid cool 7
TP309Cb S30940 solution treatment 1900 [1040]F water or other rapid cool
TP309HCb S30941 solution treatment 1900 [1040]H water or other rapid cool 7
S31002 solution treatment 1900 [1040]F water or other rapid cool
TP310S S31008 solution treatment 1900 [1040]F water or other rapid cool
TP310H S31009 solution treatment 1900 [1040] water or other rapid cool 7
TP310Cb S31040 solution treatment 1900 [1040]F water or other rapid cool
TP310HCb S31041 solution treatment 1900 [1040]H water or other rapid cool 7
TP310HCbN S31042 solution treatment 1900 [1040]F,H water or other rapid cool 7
S31060 solution treatment 1975 [1080]– water or other rapid cool 7
2160 [1180]F
S31254 solution treatment 2100 [1150] water or other rapid cool
S31272 solution treatment 1920 [1050] water or other rapid cool
S31277 solution treatment 2050 [1120]F water or other rapid cool
TP316 S31600 solution treatment 1900 [1040]F water or other rapid cool

ASTM A213M-09 Material Comparison Tables

Grade UNS Designation C Mn P S Si Vanadium Boron Niobium Nitrogen Aluminum Tungsten
T2 K11547 0.10–0.20 0.30–0.61 0.025 0.025B 0.10–0.30 ... ... ... ... ... ...
T5 K41545 0.15 0.30–0.60 0.025 0.025 0.5 ... ... ... ... ... ...
T5b K51545 0.15 0.30–0.60 0.025 0.025 1.00–2.00 ... ... ... ... ... ...
T5c K41245 0.12 0.30–0.60 0.025 0.025 0.5 ... ... ... ... ... ...
T9 K90941 0.15 0.30–0.60 0.025 0.025 0.25–1.00 ... ... ... ... ... ...
T11 K11597 0.05–0.15 0.30–0.60 0.025 0.025 0.50–1.00 ... ... ... ... ... ...
T12 K11562 0.05–0.15 0.30–0.61 0.025 0.025B 0.5 ... ... ... ... ... ...
T17 K12047 0.15–0.25 0.30–0.61 0.025 0.025 0.15–0.35 0.15 ... ... ... ... ...
T21 K31545 0.05–0.15 0.30–0.60 0.025 0.025 0.50–1.00 ... ... ... ... ... ...
T22 K21590 0.05–0.15 0.30–0.60 0.025 0.025 0.5 ... ... ... ... ... ...
T23 K40712 0.04–0.10 0.10–0.60 0.03 0.01 0.5 0.20–0.30 0.0010–0.006 0.02–0.08 0.015 0.03 1.45–1.75
T24 K30736 0.05–0.10 0.30–0.70 0.02 0.01 0.15–0.45 0.20–0.30 0.0015–0.007 ... 0.012 0.02 ...
T36 K21001 0.10–0.17 0.80–1.20 0.03 0.025 0.25–0.50 0.02 ... 0.015–0.045 0.02 0.05 ...
T91 K90901 0.07–0.14 0.30–0.60 0.02 0.01 0.20–0.50 0.18–0.25 ... 0.06–0.10 0.030–0.07  0.02 ...
T92 K92460 0.07–0.13 0.30–0.60 0.02 0.01 0.5 0.15–0.25 0.001–0.006  0.04–0.09 0.030–0.07 0.02 1.5–2.00
T122 K91271 0.07–0.14 0.7 0.02 0.01 0.5 0.15–0.30 0.0005–0.005 0.04–0.10 0.040– 0.02 1.50–2.50
T911 K91061 0.09–0.13 0.30–0.60 0.02 0.01 0.10–0.50 0.18–0.25 0.0003–0.006 0.06–0.10 0.040–0.09 0.02 0.90–1.10

ASTM A213M-09 Mechanical properties

Grade Tensile strength
(Mpa)
Yield point(Mpa)
not less than
Elongation(%)
not less than
Impact(J)
not less than
Hardness
not less than
A213 T2/SA213 T2 ≥415 205   " 85HRB
A213 T11/SA213 T11 ≥415 205   " 85HRB
A213 T22/SA213 T22 ≥415 205   " 85HRB
A213 T23/SA213 T23 ≥510 400 20 " 97HRB
A213 T24/SA213 T24 ≥585 415 20 " 25HRB
A213 T91/SA213 T91 ≥585 415 20 " 25HRB
A213 T911/SA213 T911 ≥620 440 20 " 25HRB
A213 T22/SA213 T92 ≥620 440 20 " 25HRB
A213 T122/SA213 T122 ≥620 400 20   25HRB
TP304H ≥515 205 35   90HRB
TP316H ≥515 205 35   90HRB
TP321H ≥515 205 35   90HRB
TP347H ≥515 205 35   90HRB
S30432 ≥590 235 35   95HRB
TP310HCbN ≥655 295 30   100HRB

Note

A Maximum, unless range or minimum is indicated. Where ellipses (...) appear in this table, there is no requirement, and analysis for the element need not be determined or reported.

B It is permissible to order T2 and T12 with a sulfur content of 0.045 max. See 16.3.

C Alternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, defined as after austenitizing and cooling to room temperature but prior to tempering.

Hardness test frequency shall be two samples of product per heat treatment lot and the hardness testing results shall be reported on the material test report.

Material Comparison Tables (ASTM ℃KS, JIS, DIN, BS, NBN, NF, UNI)

A 213 - Seamless Alloy Steel Boiler and Heat Exchanger Tubes

ASTMSTANDARD UNS NO. KOREA/JAPANES GERMAN BRITISH FRENCH ITALIAN
KS/JIS Symbol KS/JIS Numbe Remarks DIN Type DINNumber MateriralNumber Remarks B.SNumber B.S Grade Remarks AFNOR Type NF Number Ramarks UNI Type UNI Number Ramarks
Grade T 5 K41545 STHA 24 / STBA 25 D3572 / G3462 (30)(24) 12 CrMo 19 5 1.7362 (3a) 3606 625 (30) TUZ12C A49-213 (3a)(32) Dalmine 234(3b)
Grade T 11 K11597 STHA 22 / STBA 24 D3572 / G3462 (30)(24) 13 CrMo 44 17175 1.7335 (8)(32) 3606 621 (30) 5.05 (3b)(32)

Dalmine 227(3b)

Grade T 12 K11562 STHA 21 / STBA 22 D3572 / G3462 (30)(24)

13 CrMo 44

17175 1.7335 (32) 3606 620 (30) TU 10 CD 5.05
Grade T 22 K21590 STHA 23 / STBA 24 D3572 / G3462 (30)(24) 10 CrMo 9 10 17175 1.7380 (32) 3606 622 (30)(32) (3a)(32) 12 CrMo 9 10 5462 Dalmine 235(3b)
TP 304 S30400 STS 304 TB / SUS 304 TB D3577 / G3463 (30)(24) X5 CrNi 18 9 17440 1.4301 (3b) 3606 304S25 (30) TU 10 CD 9.10 A49-218 (3b) X5 CrNi 18 10 6904 (3b)
TP 304L S31403 STS 304LTB / SUS 304LTB D3577 / G3463

(30)(24)

X2 CrNi 18 9 17440 1.4306 (3b) 3606 304S22 (30) Z 6 CN 18.09 A49-218 (3b) X2 CrNi 18 11 6904 (3b)
TP 310 S31000 STS 310STB/SUS 210STB D3577 / G3463 (30)(24) X12 CrNi 2528 1.4845

WBL-470(3b)

(3) Z 2 CN 18.09 (3) X22CrNi 25 20 6904 (3b)(11)
TP 316 S31600 STS 316TB / SUS 316TB D3577 / G3463 (30)(24) X5 CrNiMo 18 10 17440 1.4401 (3b) 3606 316S30 (30) A49-218 (3b) X5 CrNiMo 17 12 6904 (3b)
TP 316L S211603 STS 316LTB /SUS 316LTB D3577 / G3463 (30)(24) X2 CrNiMo 18 10 17440 1.4404 (3b) 3606 316S29 (30) Z 6 CND 17.12 A49-218 (3b) X2 CrNiMo 17 12 6904 (3b)
TP 321 S32100 STS 312TB/SUS 321TB D3577 / G3463 (30)(24) X10 CrNiTi 18 9 17440 1.4541 (3b) 3606 321S22 (30) Z2 CND 17.13 A49-218 (3b) X6 CrNiTi 18 11 6904 (3b)
TP 347 S34700 STS 347TB / SUS 347TB D3577 / G3463 (30)(24) X10 CrNiNb 18 9 17440 1.4550 (3b) 3606 347S17 (30) Z6 CNT 18.11 A49-218 (3b) X6 CrNiNb 18 11 6904 (3b)
Z 6 CNNb 18.11

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