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Identifying equivalent materials for ASTM A537 Class 3 is essential for global sourcing and ensuring compliance in pressure vessel and boiler manufacturing.
At Gangsteel, we specialize in supplying high-quality ASTM A537 Cl 3 steel plates under the ASTM A537/A537M standard, a quenched and tempered carbon-manganese-silicon steel known for its balanced strength and toughness.
This guide details the equivalents of ASTM A537 Class 3, facilitating seamless integration into international projects.
Compare with our ASTM A537 Cl 1 steel plate, ASTM A537 Cl 2 steel plate, or ASME grades like ASME SA 537 Class 3.
ASTM A537 Class 3 is equivalent to ASME SA537 Class 3 under the ASME SA537/SA537M standard, sharing identical composition and quenched/tempered properties for moderate-pressure applications.
Internationally, equivalents from various countries offer similar strength and heat treatment for pressure vessels and boilers.
Key equivalents:
Table of equivalents:
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 |
ASTM A537 Class 3’s composition aligns with equivalents, ensuring weldability and durability.
Per astm a537 class 3 pressure vessel steel equivalents, it features low carbon and controlled impurities for balanced performance.
Composition table for A537 Class 3:
Element |
Composition (%) |
---|---|
Carbon (C) |
0.24 max |
Manganese (Mn) |
0.70-1.35 (≤40mm) 1.00-1.60 (>40mm) |
Phosphorus (P) |
0.035 max |
Sulfur (S) |
0.035 max |
Silicon (Si) |
0.15-0.50 |
Copper (Cu) |
0.35 max (if specified) |
Nickel (Ni) |
0.25 max (if specified) |
Chromium (Cr) |
0.25 max (if specified) |
Molybdenum (Mo) |
0.08 max (if specified) |
Equivalents like EN P420NH (C: 0.20 max, Mn: 1.00-1.70) and JIS SPV450 (C: 0.18 max) have slightly lower carbon for improved weldability but similar manganese and silicon ranges.
A537 Class 3 offers a minimum yield strength of 55 ksi (380 MPa) for plates ≤65mm, with tensile strength of 75-95 ksi (515-655 MPa).
Equivalents like EN P420NH (yield ~420 MPa) and JIS SPV450 (yield 450 MPa) provide comparable strength for moderate-pressure applications.
Properties table:
Standard |
Grade |
Yield (min MPa) |
Tensile (MPa) |
---|---|---|---|
ASTM A537 |
Class 3 |
380 |
515-655 |
ASME SA537 |
Class 3 |
380 |
515-655 |
EN 10028-3 |
P420NH |
420 |
530-680 |
JIS G3115 |
SPV450 |
450 |
570-700 |
These ensure A537 Class 3’s suitability for intermediate services.
A537 Class 3 equivalents are used in moderate-pressure boilers, chemical tanks, and gas separators, offering cost-effective sourcing with HIC resistance when tested.
Gangsteel’s plates, including ASME SA537 Cl.1 for comparison, meet global standards for reliable performance.
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.
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.
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 Gangsteel, including ASME SA 537 Class 3, provide versatile, high-performance options for global projects. Contact us for tailored solutions and reliable supply.
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