Alloy steel used for higher temperature applications. The type of steel contain high amount of chromium amd nickel content. Also highly corrosion and resistance free stainless steel while providing good strength. They are essentially nonmagnetic as annealed and become lightly magnetic when cold worked. Astec INC holds inventory of 309 stainless steel sheets, plates, and coils.
The steel is highly weldable and cold formable. Like 310 Stainless Steel, Grade 309 Stainless Steel has a high chromium and nickel content which grants excellent resistance to aqueous corrosion.
Chromium 23% max
Nickel 14% max
Manganese 2% max
Silicon 1% max
Carbon 0.20% max
Phosphorous 0.045% max
Sulfur 0.030% max
309 stainless steel has more corrosion & temperature resistance and strength compared to 304 grade stainless steel.
Fire box sheets
As filler metal when welding dissimilar steels
Auto exhaust part
Other high temperature containers
Refinery and chemical processing equipment
309 Steel Sheets available with mill test certificate related to its marking on it.