The difference between 310 stainless steel and 310S stainless steel

The chemical composition of 310 stainless steel and 310S stainless steel is different

1. The chemical composition content of stainless steel 310: C (≤0.25%), Si (≤1.50%), Mn (≤2.00%), P≤ (0.045%), S≤ (0.0.03%), Cr (24.0% -26.0%), Ni (19.0%-22.0%).

2. The chemical composition of stainless steel 310S: C (≤0.08%), Si (≤1.500%), Mn (≤2.00%), P≤ (0.035%), S (≤0.030%), Ni (≤19.00%- 22.00%), Cr (≤24.00%-26.00%).

310 stainless steel and 310S stainless steel have different meanings

1. 310 stainless steel is an austenitic chromium-nickel stainless steel with good oxidation resistance and corrosion resistance. Because of the higher percentage of chromium and nickel, 310s stainless steel has much better creep strength and can continue to operate at high temperatures. Good high temperature resistance.

2. 310S stainless steel plate is a high-alloy stainless steel of 25Cr-20Ni series, which has excellent high temperature oxidation resistance and is suitable for making various furnace components. The maximum temperature is 1200°C and the continuous use temperature is 1150°C.

The characteristics of 310 stainless steel and 310S stainless steel are different

1. Stainless steel 310 has high temperature oxidation resistance. 310 stainless steel has oxidation resistance through partial oxidation of chromium. In the process of partial oxidation of chromium, a very stable oxide (Cr2O3 chromium oxide) can be formed. As long as the chromium content of the metal is sufficient, a continuous layer of chromium oxide green can be formed on the metal surface to prevent the formation of other oxides and protect the metal.

2. In stainless steel 310S, the brittle nature of carbon tool steel is improved to prolong the life of the tool. Vacuum degassing refined steel, stable quality. Good hardenability, oil cooling hardening (less quenching and deformation), good toughness and wear resistance, durable tools.