Heat Resistant Stainless Steel Plate 309S / 2.4833 Stainless Plate & Sheet Thickness 1.5 - 50.0mm

Heat Resistant Stainless Steel Plate 309S / 2.4833 Stainless Plate & Sheet Thickness 1.5 - 50.0mm

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.

Specifications: UNS S30900/S30908

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 liquor handling equipment
• Kiln liners
• Boiler baffles
• Refinery and chemical processing equipment
• Auto exhaust parts

STANDARDS:

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

309 CORROSION RESISTANCE

• Provide excellent corrosion resistance
• More resistant to marine atmospheres than Alloy 304
• Often used at higher temperatures to take advantage of their oxidation resistance
• Have high resistance to sulfite liquors
• Generally considered heat resistant alloys
• Destructive scaling temperature is approximately 2000oF
• Good scaling resistance with regard to continuous and intermittent service

HIGH TEMPERATURE CORROSION

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