410S stainless round bar (ASTM A276; GB 06Cr13) is a low-carbon martensitic stainless with properties differing from 410:
Tensile strength: 410S has 450–600 MPa, lower than 410's 540–740 MPa, due to lower carbon (0.08% max vs. 0.15% max).
Weldability: Superior to 410, as low carbon reduces weld cracking risk-ideal for welded components.
Corrosion resistance: Better than 410 in mild environments, as lower carbon minimizes carbide precipitation.
Hardness: 187–223 HB (annealed), softer than 410 but easier to form.
410S is used in food processing equipment, water tanks, and mild chemical containers-applications requiring moderate corrosion resistance and good weldability.