A537 Class 2 Quenched Steel Plate

These types of plates are manufactured using A537 class 2 steel which is an alloy that contains manganese, silicon, and carbon. This kind of alloy steel grade is extensively used in the fabrication process and manufactured for heat exchangers, pressurized tanks, and boilers.

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Product Description

1.What chemical components are contained in ASTM A537 Class 2 quenched & tempered steel plate?

A537 class 2 Chemical Composition
Grade	The Element Max(%)
Grade	C	Mn	P	S	Si	Cu	Ni	Cr	Mo
A537 class 2	0.24	0.92-1.72	0.035	0.035	0.13-0.55	0.38	0.28	0.29	0.09

2.What are the mechanical properties of ASTM A537 Class 2 Quenched & Tempered Steel Plate?

Property	Value	Standard Requirement
Yield Strength	≥ 415 MPa (60 ksi)	ASTM A537
Tensile Strength	550-690 MPa (80-100 ksi)	ASTM A537
Elongation	≥ 20% (in 50mm gauge length)	ASTM A537
Charpy Impact	≥ 27J @ -30°C (typical value)	Customer specs may require lower temperatures
Hardness	180-220 HB (Brinell Hardness)	Depends on tempering process

3.Why choose A537 Class 2 for pressure vessels?

Higher pressure resistance (550–690 MPa tensile strength)
Better performance in offshore/nuclear applications
Maintains toughness at low temperatures

4.What is the key difference between A537 Class 2 and Class 1?

Class 2undergoes quenching & tempering (Q&T), providing higher strength (Yield ≥415 MPa vs. Class 1’s 345 MPa).

Class 1is only normalized, prioritizing weldability over strength.

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