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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.
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
