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ASTM A537 Class 3 Pressure Vessel Steel Plate

Production Size: Thickness: 4mm- 400mm; Width: 1000mm- 4000mm; Length: 4000mm- 12000mm.

Production ability:10000 Tons Per Month.

Production Way: Hot Rolled, Quenched and Tempered( Q+T)

ASTM A537 Class 3(A537CL3) Boiler steel plate ASTM A537 Class 3(A537CL3) Pressure Vessel Steel ASTM A537 Class 3 (A537CL3) Storage Tanks Steel Plate ASTM A537 Class 3 (A537CL3) Heat Exchanger Steel Plate

Introduction
Parameters
Service

What is ASTM A537 Class 3?

ASTM A537 Class 3 is a heat-treated carbon-manganese-silicon steel plate specification used in pressure vessels and structural applications. It is specifically quenched and tempered, with a minimum tempering temperature of 1150°F (620°C). Class 3 plates are often used in oil and gas projects, particularly in the construction of pressure vessels, boilers, storage tanks, and heat exchangers.

ASTM A537 Class 3 Equivalent Materials

Standard/Country	Equivalent Grade	Key Features	Applications
ASTM (USA)	A537 Class 3	Q&T, yield 380 MPa	Moderate-pressure vessels
ASME (USA)	SA537 Class 3	Identical to A537	Boilers
EN (EU)	P420NH	Q&T, yield ~420 MPa	Elevated temp vessels
DIN (Germany)	WStE355	High strength, toughness	Structural vessels
JIS (Japan)	SPV450	High-strength, weldable	Pressure boilers
BS (UK)	P420NH	Comparable mechanicals	High-temp vessels
GB (China)	14Cr1MoR	Heat-resistant, alloyed	Petrochemical reactors
KS (Korea)	SPV450	Good weldability	Industrial tanks
AFNOR (France)	15CD4-05	Similar strength	Welded equipment
IS (India)	2002 Gr.2	Boiler-grade, high strength	Storage tanks
AS (Australia)	PT430N	Normalized or Q&T	Pressure vessels

Specification Parameters

Basic Information

Mechanical property for A537 CL3 steel plate:

Thickness(mm)	Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
			200mm	50mm
T≤65	380	550-690	…	22
65<T≤100	345	515-655	…	22
100<T	275	485-620	…	20

Chemical composition for A537 CL3 steel plate (Heat Analysis Max%)

Main chemical elements composition of A537CL3 steel plate
Thickness(mm)	C	Si	Mn	P	S	Cu	Ni	Cr	Mo
T≤40	0.24	0.13-0.55	0.64-1.46	0.035	0.035	0.38	0.28	0.29	0.09
40<T			0.92-1.72

Service Support

ASTM A537 Class 3 Pressure Vessel Steel Plate

FAQ

Q: What is the equivalent of ASTM A537 Class 3?

A: ASTM A537 Class 3 is equivalent to ASME SA 537 Class 3, EN 10028-3 P420NH, DIN WStE355, JIS SPV450, and others like GB 14Cr1MoR, with quenched/tempered properties and yield around 380-450 MPa for pressure vessels.

Q: Are ASTM A537 Class 3 and ASME SA537 Class 3 the same?

A: Yes, they are identical in composition (carbon 0.24% max) and mechanicals (yield 55 ksi min), with SA537 designed for ASME code compliance like Section VIII.

Q: What are the key properties of A537 Class 3 equivalents?

A: Equivalents feature low carbon (≤0.24%), yield ~380-450 MPa, and quenched/tempered treatment for balanced toughness in moderate-pressure boilers and tanks.

In summary, ASTM A537 Class 3 equivalents from GNEE Steel, including ASME SA 537 Class 3, provide versatile, high-performance options for global projects. Contact us for tailored solutions and reliable supply.

GNEE GROUP

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ASTM A537 Class 3 Pressure Vessel Steel Plate

What is ASTM A537 Class 3?

ASTM A537 Class 3 Equivalent Materials

Mechanical property for A537 CL3 steel plate:

Chemical composition for A537 CL3 steel plate (Heat Analysis Max%)

FAQ