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Home / Products / Welding Neck Flange / X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092
quality X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092 factory
quality X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092 factory
quality X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092 factory
quality X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092 factory
quality X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092 factory

X2CrNiMo17-12-3 1.4432 Marine Grade Stainless Steel Welding Neck Flange EN1092

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seamless mild steel pipe

seamless steel tube

seamless pipe steel
Product Summary
X2CrNiMo17-12-3 EN 10222-5 1.4432 marine grade stainless flange offers superior corrosion resistance in chloride environments. Enhanced with molybdenum and nitrogen for pitting resistance, low carbon for weldability, and ideal for marine, chemical, and high-hygiene applications.

Product Details

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X2CrNiMo17-12-3 Welding Neck Flange

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1.4432 Stainless Steel Flange

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Marine Grade EN1092 Flange
Product Description
X2CrNiMo17-12-3 EN 10222-5 1.4432 Marine Grade Stainless Flange EN1092

1.4432 is a stainless steel grade designation (EN/DIN) for an austenitic stainless steel very similar to 316L, but improved for enhanced corrosion resistance, particularly in chloride environments.

Chemical Composition
Element Composition (%)
Carbon (C)≤ 0.030
Silicon (Si)≤ 1.00
Manganese (Mn)≤ 2.00
Phosphorus (P)≤ 0.045
Sulfur (S)≤ 0.015
Chromium (Cr)17.0 – 18.0
Nickel (Ni)12.5 – 13.5
Molybdenum (Mo)2.5 – 3.0
Nitrogen (N)0.10 – 0.17
Iron (Fe)Balance
Key Element Functions
  • High Chromium (17–18%): Forms a stable, protective chromium oxide film for foundational stainless behavior and general corrosion resistance.
  • Nickel (12.5–13.5%): Stabilizes the austenitic structure, improving toughness, formability, weldability, and corrosion resistance.
  • Molybdenum (2.5–3.0%): Significantly enhances resistance to pitting and crevice corrosion in chloride-containing environments.
  • Low Carbon (≤ 0.03%): Reduces risk of carbide precipitation during welding, maintaining corrosion resistance in heat-affected zones.
  • Nitrogen (0.10–0.17%): Increases strength, improves pitting corrosion resistance, and helps maintain austenitic structure.
Typical Applications
  • Chemical and pharmaceutical equipment
  • Food and beverage processing
  • Components exposed to chlorides (marine and offshore applications)
  • High-hygiene and high-corrosion-resistance environments
  • Tanks, pipes, heat exchangers, and process equipment
Material Selection Guidance

When selecting materials for specific applications:

  • Verify exact composition and tolerance ranges from the steel mill's datasheet
  • Compare 1.4432 with related grades like 1.4404 (316L) and 1.4435 for especially aggressive chloride or acid environments

Mrs. amy

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