– Iron (Fe): balance
– Chromium (Cr): 17-19%
– Nickel (Ni): 9-12%
– Manganese (Mn): max 2%
– Silicon (Si): max 1%
– Phosphorus (P): max 0.045%
– Sulfur (S): max 0.03%
– Carbon (C): max 0.08%
– Nitrogen (N): max 0.10%
– Titanium (Ti): 5x(C+N)-0.70% maximum
The 321S32 steel grade exhibits improved intergranular corrosion resistance and resists polythionic acid stress corrosion cracking. It also has excellent high-temperature strength and good oxidation resistance. Additionally, this grade is easy to machine, stamp, and weld. These properties make it suitable for applications in industries such as aerospace, chemical processing, and high-temperature environments.
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