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Home / Products / Blind Pipe Flanges / X2CrNiMo17-12-2 1.4404 AISI 316L Blind Pipe Flange for Corrosion Resistance
quality X2CrNiMo17-12-2 1.4404 AISI 316L Blind Pipe Flange for Corrosion Resistance factory
quality X2CrNiMo17-12-2 1.4404 AISI 316L Blind Pipe Flange for Corrosion Resistance factory
quality X2CrNiMo17-12-2 1.4404 AISI 316L Blind Pipe Flange for Corrosion Resistance factory

X2CrNiMo17-12-2 1.4404 AISI 316L Blind Pipe Flange for Corrosion Resistance

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epoxy coated gas pipe
Product Summary
1.4404 steel (AISI 316L) is a low-carbon, molybdenum-alloyed austenitic stainless steel offering superior corrosion resistance, especially against pitting and crevice corrosion in chloride environments. Its low carbon content ensures excellent weldability and resistance to intergranular corrosion, making it ideal for demanding industrial applications.

Product Details

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X2CrNiMo17-12-2 Blind Pipe Flange

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1.4404 Flange

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AISI 316L Steel Flange
Product Description
X2CrNiMo17-12-2 1.4404 EN 1.4404 Flange
1.4404 Steel (AISI 316L) is an austenitic stainless steel grade internationally known as AISI 316L. The "L" designation stands for "low carbon," which significantly improves corrosion resistance, particularly against intergranular corrosion (weld decay).
Chemical Composition
Element Content (Weight %) Purpose/Effect
Carbon (C) ≤ 0.030 Very low carbon content to minimize carbide precipitation during welding
Chromium (Cr) 16.5 – 18.5 Main element for corrosion resistance; forms passive chromium oxide layer
Nickel (Ni) 10.0 – 13.0 Stabilizes austenitic structure and improves toughness and corrosion resistance
Molybdenum (Mo) 2.0 – 2.5 Key for improved resistance to pitting and crevice corrosion in chloride environments
Manganese (Mn) ≤ 2.0 Helps deoxidation and improves hot-working properties
Silicon (Si) ≤ 1.0 Aids deoxidation during steelmaking
Phosphorus (P) ≤ 0.045 -
Sulfur (S) ≤ 0.015 Kept very low to maintain toughness and corrosion resistance
Nitrogen (N) ≤ 0.11 Strengthens austenitic matrix; controlled to prevent corrosion issues
Iron (Fe) Balance Base metal
Summary: 1.4404 is a low-carbon, molybdenum-alloyed, austenitic stainless steel (316L) chosen when you need good general corrosion resistance plus better performance in chlorides than standard 304/1.4301, and better weldability than 1.4401/316 due to its lower carbon content.

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