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317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange
317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange
317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange
317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange
Specifications
Description
317L Stainless Steel EN1092 Forged Flanges
317L is a low-carbon, molybdenum-bearing austenitic stainless steel designed for excellent corrosion resistance, particularly in aggressive chloride-containing and acidic environments.
Chemical Composition (UNS S31703)
Element Composition (%)
Carbon (C) max 0.03%
Chromium (Cr) 18.0 - 20.0%
Nickel (Ni) 11.0 - 15.0%
Molybdenum (Mo) 3.0 - 4.0%
Manganese (Mn) max 2.0%
Silicon (Si) max 0.75%
Phosphorus (P) max 0.045%
Sulfur (S) max 0.03%
Nitrogen (N) max ~0.10%
Iron (Fe) Balance
Key Element Functions
High Chromium + Nickel: Stabilizes the austenitic structure and provides excellent general corrosion and oxidation resistance.
High Molybdenum (3-4%): Significantly improves resistance to pitting and crevice corrosion in chloride environments and enhances resistance to certain acids.
Low Carbon Content: Maximum 0.03% carbon reduces carbide precipitation during welding, minimizing sensitization and intergranular corrosion.
Controlled Impurities: Low phosphorus and sulfur content maintains toughness, weldability, and corrosion resistance.
Design & Specification Note: Always refer to official standards or mill certificates for exact composition ranges, such as ASTM A240/A276 or EN/ISO equivalents. The essential chemical identity of 317L stainless steel is approximately 19% Cr, 13% Ni, 3-4% Mo, with very low carbon content.
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317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange

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317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange
317L Stainless Steel EN1092 Standard Corrosion Resistant Welding Neck Forged Flange

BEST PIPELINE EQUIPMENT CO.,LTD

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9 Years
jiangsu, suzhou
Since 2010
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Alloy Steel Seamless Pipes, Boiler Steel Pipe, Heat Resistant Stainless Steel Pipe
Total Annual :
1000000-5000000
Employee Number :
116~209
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Verified Supplier
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