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What is the Difference Between A516 GR 70 and A285 GR C?

 

A516 GR 70 has a tensile strength of 485-620 MPa and HIC resistance, while A285 GR C offers 310-450 MPa for low-pressure vessels.Gangsteel supplies ASTM A 516 GR 70 for critical applications. This article compares their properties and uses.

 

Chemical Composition Comparison

 

Element

A516 GR 70 (% by Weight)

A285 GR C (% by Weight)

Notes

Carbon (C)

≤0.27

≤0.28

Similar weldability.

Manganese (Mn)

0.79 - 1.30

0.90 max

A516 stronger.

Phosphorus (P)

≤0.025

≤0.035

A516 stricter for toughness.

 

Mechanical Properties Comparison

Property

A516 GR 70

A285 GR C

Notes

Tensile Strength

485 - 620 MPa

310 - 450 MPa

A516 for high pressure.

Yield Strength (min)

260 MPa

205 MPa

A516 more robust.

Elongation (min)

17%

26%

A285 more ductile.

 

 

Applications

  • A516 GR 70: High-pressure vessels, sour gas.
  • A285 GR C: Low-pressure tanks.

 

Gangsteel’s Expertise

Gangsteel’s A516 GR 70 plates are HIC-tested, ensuring superior performance.

 

Conclusion

A516 GR 70 is stronger than A285 GR C, ideal for high-pressure applications. Gangsteel’s ASTM A 516 GR 70 meets global standards.

Keywords: A516 GR 70 vs A285 GR C, carbon steel comparison, pressure vessel steel, Gangsteel plates

 

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