Ss Round Bar

Product Details:

Alloys 309 and 309S are austenitic chromium-nickel stainless steels that are often used for higher temperature applications. Due to their high chromium and nickel content, Alloys 309 and 309S are highly corrosion resistant, have outstanding resistance to oxidation, and excellent heat resistance while providing good strength at room and elevated temperatures. The only significant difference between 309 and 309S is the carbon content. Alloy 309S has a much less carbon composition which minimizes carbide precipitation and improves weldability.

Applications:

• Alloys 309 and 309S are used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. 

Some examples include, but are not limited to: 

Heating elements:

• Aircraft and jet engine parts
• Heat exchangers
• Carburizing annealing products
• Sulfite handling equipment
• Kiln liners
• Boiler baffles
• Refinery and chemical processing equipment
• Auto exhaust parts

Standards:

• UNS S30900/S30908
• ASTM/ASME: UNS S30900/S30908
• EURONORM: FeMi35Cr20Cu4Mo2
• DIN: 2.4660