309 / 309S Sheets & Plates

309 steel sheet grades are austenitic chromium-nickel stainless steels that are largely used at higher temperature. Due to its high chromium and nickel content, 309 SS is highly corrosion resistant, have excellent resistance to oxidation and outstanding heat resistance. It also provides good strength at room as well as high temperatures.

Typical Composition:

Chromium 23% max
Nickel 14% max
Manganese 2% max
Silicon 1% max
Carbon 0.20% max
Phosphorous 0.045% max
Sulfur 0.030% max
Iron Balance

309 stainless steel has more corrosion & temperature resistance and strength compared to 304 grade stainless steel.
Common Applications:

Boiler baffles
Fire box sheets
As filler metal when welding dissimilar steels
Auto exhaust part
Furnace components
Other high temperature containers
Heating elements
Refinery and chemical processing equipment
Kiln liners

309 Steel Sheets available with mill test certificate related to its marking on it.


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