What is the Chemical Composition of SA 516 GR 65?

 

The chemical composition of SA 516 GR 65 includes 0.24-0.29% carbon, 0.79-1.30% manganese, and ≤0.025% phosphorus/sulfur, ensuring weldability and toughness.Gangsteel supplies ASME SA 516 GR 65 plates for pressure vessels. This article details its composition and applications.

Chemical Composition

 

Element	Composition (% by Weight)	Notes
Carbon (C)	max 0.29	Slightly lower than GR 70 for better weldability.
Manganese (Mn)	0.79 - 1.30	Enhances strength.
Phosphorus (P)	≤0.025	Low for toughness.
Sulfur (S)	≤0.025	HIC resistance for sour service.
Silicon (Si)	0.15 - 0.40	Improves manufacturability.

 

Applications

• Petrochemical: Reactors requiring balanced strength.
• Oil and Gas: Storage tanks with HIC resistance.
• Power: Moderate pressure boilers.

 

Gangsteel’s Expertise

Gangsteel’s SA 516 GR 65 plates are tested for quality, ensuring global compliance.

 

Conclusion

SA 516 GR 65’s chemical composition ensures weldability and strength for pressure vessels. Gangsteel’s ASME SA 516 GR 65 meets industry standards.

Keywords: SA 516 GR 65 chemical composition, ASME SA 516, carbon steel plate, HIC resistance