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Home / Products / Welding Neck Flange / 316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard
quality 316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard factory
quality 316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard factory
quality 316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard factory
quality 316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard factory
quality 316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard factory

316L Stainless Steel Welding Neck Flange Corrosion Resistant EN1092-1 Standard

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seamless mild steel pipe

seamless steel tube

seamless pipe steel
Product Summary
316/316L stainless steel EN1092 flanges offer excellent corrosion resistance with molybdenum content. The key difference is carbon content: 316L's lower carbon (≤0.03%) provides superior resistance to weld decay and intergranular corrosion, making it ideal for welded structures in chemical, pharmaceutical, and food industries.

Product Details

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316L Stainless Steel Welding Neck Flange

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Corrosion Resistant Stainless Steel Flange

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EN1092-1 Standard Welding Neck Flange
Product Description
316 / 316L Stainless Steel EN1092 Flanges
316 and 316L are closely related austenitic stainless steels. The main difference is their carbon content, which affects corrosion resistance (especially against weld decay) and mechanical properties.
Chemical Composition
Here is the typical chemical composition for both (in weight percent, %):
Element Type 316 Stainless Steel Type 316L Stainless Steel
Carbon (C) ≤ 0.08% ≤ 0.03%
Chromium (Cr) 16.0 – 18.0% 16.0 – 18.0%
Nickel (Ni) 10.0 – 14.0% 10.0 – 14.0%
Molybdenum (Mo) 2.0 – 3.0% 2.0 – 3.0%
Manganese (Mn) ≤ 2.0% ≤ 2.0%
Silicon (Si) ≤ 1.0% ≤ 1.0%
Phosphorus (P) ≤ 0.045% ≤ 0.045%
Sulfur (S) ≤ 0.03% ≤ 0.03%
Nitrogen (N) ≤ 0.10% ≤ 0.10%
Iron (Fe) Balance Balance
Why the "L" Matters
  • Lower carbon content in 316L reduces the risk of carbide precipitation at grain boundaries during welding
  • This improves resistance to intergranular corrosion, especially in corrosive or high-temperature service
  • 316L is therefore preferred for heavily welded structures, pressure vessels, and piping in chemical, pharmaceutical, and food industries
In short, both 316 and 316L share the same alloying elements—Cr, Ni, and Mo being the most important—but 316L's lower carbon content makes it more resistant to weld-related corrosion at a small cost to maximum strength.

Mrs. amy

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