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

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

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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