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ASTM A537 Class 2 Carbon Steel Plates

GNEE Steel will supply ASTM A537 Class 2 plates from stock or directly from the mill. We also offer steel cutting services including CAD based flame cutting to cut your steel into particular shapes.

What is ASTM A537 Class 2 steel?

ASTM A537 Class 2 steel is a higher yield and tensile strength material used in the fabrication of pressurised vessels and steel boilers.
The steel includes the alloying of carbon, manganese and silicon and is heat treated using the quenched and tempered method which gives the material its residual strength. Sourced by the world’s leading fabricators, ASTM A537 Class 2 is a material used extensively by the oil, gas and petrochemical industry.

Equivalent Materials for A537 Class 2

Equivalents include ASME SA537 Class 2, EN 10028-3 P460NH, DIN 19Mn6, JIS SPV490.

Standard

Grade/Equivalent

Key Features

Applications

ASTM A537

Class 2

Q&T, yield 415 MPa

High-pressure vessels

ASME SA537

Class 2

Identical

Boilers

EN 10028-3

P460NH

Similar Q&T properties

Elevated temp service

JIS G3115

SPV490

High strength boiler steel

Pressure boilers

These support global compatibility.

Density and Delivery Condition

Density is 7.85 g/cm³, standard for carbon steels. Delivered in quenched and tempered state, with options for PWHT simulation.

 

Available Specifications and Models

GNEE Steel offers A537 Class 2 in 5-150mm thicknesses, widths to 4500mm, lengths to 18000mm, compliant with ASTM/ASME.

 

Pricing Insights for A537 Class 2 Material

As of 2025, prices range from $800-3,000 per ton, with current pricing for asme sa537 class 2 pressure vessel plates averaging $1,000-1,500 for standard sizes. Contact us for quotes.

Specification Parameters
Basic Information

ASTM A537 Class 2 steel Chemical Composition

(Heat Analysis, wt. %, maximum unless indicated)

Meets chemical requirements of ASTM A537 Class 2/ SA537 Class 2, as shown below. ASTM A20 limits apply to unspecified elements.

C
(max wt %)
Mn 1)
(max wt %)
P 2)
(max wt %)
S 2)
(max wt %)
Si
(max wt %)
Cu
(max wt %)
Ni 1)
(max wt %)
Cr
(max wt %)
Mo
(max wt %)
0.24
1.60
0.020
0.010
0.50
0.35
0.25
0.25
0.080

1) Manganese may exceed 1.35 % on heat analysis, up to a maximum of 1.60 %, and nickel may exceed 0.25 % on heat analysis, up to a maximum of 0.50 %, provided the heat analysis carbon equivalent (CEV) does not exceed 0.57 %.

2) P and S are more restrictive than A537/SA537 requirements. Even lower limits for P and S are available on an inquiry basis.

Mechanical Properties of ASTM A537 Class 2 Carbon Steel Plate

The mechanical properties of ASTM A537 Class 2 Carbon Steel Plate are summarised in the following table.

Grade Yield (MPa) Tensile (MPa) Elongation Thickness
A50mm A200mm
A537 Class 2 415 550/690 22% ¡Ü 65
380 515/655 22% > 65 ¡Ü 100
315 485/620 22% > 100 ¡Ü 150

(Please note: the technical information above is for guidance only ¨C for exact specifications please check with our Sales Team)

Service Support
ASTM A537 Class 2 Carbon Steel Plates

FAQ

Q: What is A537 Class 2 material?
A: A quenched and tempered steel for pressure vessels, with high strength for demanding services.

Q: What is the difference between A537 Class 1 and Class 2?
A: Class 1 is normalized (yield 345 MPa), Class 2 Q&T (415 MPa) for higher loads.

Q: What are the typical applications for A537 Class 2 plates?
A: High-pressure boilers, storage tanks in oil/gas.

Q: Is A537 Class 2 the same as SA537 Class 2?
A: Yes, ASTM A537 is the material spec, ASME SA537 for code use.

Q: What thickness ranges are available for A537 Class 2 plates?
A: 5-150mm, versatile for designs.

Q: Does A537 Class 2 require impact testing?
A: Yes, Charpy for toughness.

Q: Can A537 Class 2 be used in sour service?
A: Yes, with proper testing for HIC resistance.