321/321H Stainless Steel

321/321H Stainless Steel

300 SERIES


321/321H SS SHEETS/PLATES/COILS

321/321H Stainless Steel

It is similar to 304 SS but with addition of titanium it has lower risk of weld decay than 304.It’s ideal for application in temperature range up to 900 degree Celsius.

It gives excellent resistance to intergranular corrosion at temperatures in the chromium carbide precipitation range.

Typical Composition:
Carbon: 0.08% Max
Manganese: 2.00% Max
Chromium: 17.00 /19.00%
Nickel: 9.00/12.00%
Titanium: 5x(C+N) min-0.70% max
Phosphorus: 0.040% Max
Sulfur: 0.030% Max
Silicon: 0.75% Max

Grade 321H SS is a modified version of 321 which consists of higher carbon content, to get improved higher temperature strength.

Typical Composition:
Carbon: 0.04 – 0.14%
Manganese: 2.00% Max
Chromium: 17.00 /19.00%
Nickel: 9.00/12.00%
Titanium: 4x(C+N)min-0.70 max
Phosphorus: 0.040% Max
Sulfur: 0.030% Max
Silicon: 0.75% Max

Typical Applications of 321 SS Sheets are:

Aircraft exhaust stacks/manifolds
Jet engine parts
Expansion joints
Food processing
Furnace parts
Heat Exchangers
Waste treatment