ASTM A320 L7
Alloy Steel/Stainless Steel
Base Element Fe(Iron)
|Ultimate Tensile Strength (UTS)||860 MPa|
|0.2% Proof Stress||725 MPa|
|Reduction of Area||50%|
|Hardness (Brinell)||321 HB|
|Hardness (Rockwell C)||35 HRC|
Bolting for pressure vessels, valves, flanges and fittings for low-temperature services.
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