SA516 Grade 70
OtherSA516 Grade 70 / SA516M Grade 485
SA516 Grade 70 grade supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| C | 0.27 |
|---|---|
| SI | 0.15 |
Available Forms
Bar, Plate, Tube, Forging
Uses
Medium-carbon grade for machine parts such as gears, crankshafts, axles, connecting rods, spindles and forgings that need a balance of strength, toughness and machinability. Commonly supplied as bar, plate, sheet, tube and forging.
Heat Treatment
Austenitize at 820–870 °C (oil or water quench depending on section) and temper at 400–650 °C to the required strength/toughness balance.
Precautions
Weldable with standard procedures; preheat may be needed for thick sections or higher-carbon/ alloy grades. Protect from decarburization during heating (controlled atmosphere or protective coating).
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