Al-6XN^® N08367

Product features

• Product Origin

  Nippon Steel (Japan), Japan Metallurgy, Outokumpu (Sweden), ATI (USA)

• Standards

  ASTM B688, ASTM A240, ASTM B676, ASTM B675, ASTM B564

• International Designations

  Al-6XN, Desulfurization and denitrification alloy, UNS N08367, Cronifer 1925hMo, Incoloy alloy 25-6HN, NAS 255NM

• Physical Properties

  Density: 8.06g/cm³

  Melting Point: 1320-1400 ℃

  Magnetism: None

• Mechanical Properties

  Tensile Strength: σb ≥ 650Mpa

  Yield Strength σb ≥ 295Mpa

  Elongation: δ ≥ 35%

  Hardness: HRB90

• Corrosion Resistance

  Al-6XN (UNS N08367) is a super austenitic stainless steel with excellent resistance to chloride pitting and crevice corrosion. As a corrosion-resistant alloy with good cost-effectiveness, its comprehensive corrosion resistance has significantly surpassed 316L, while its corrosion resistance is comparable to other corrosion-resistant nickel-based alloys such as C-276, but with obvious cost advantages. The significant nitrogen content added to the alloy results in higher tensile strength relative to conventional austenitic stainless steels (such as 304, 316, 317), while maintaining excellent material toughness and impact strength. According to ASME standards, the allowable stress value of Al-6XN is 40% higher than that of 316L and nearly double that of copper-nickel alloys.  In typical service conditions—such as exposure to 60% sulfuric acid at temperatures below 80°C—the alloy demonstrates a very low corrosion rate, typically less than 0.1 mm/year.

• Applications

  Chemical containers and pipelines, equipment systems for offshore oil and gas platforms, condensers, heat exchangers, and pipeline systems in contact with seawater or crude oil, pressure filters, storage tanks, and pressure rollers in the pulp bleaching process, thermal power plants, smoke gas desulfurization equipment (FGD) in steel plants, petrochemical enterprises, crude oil distillation towers and packing, desalination equipment and pumps, servo water pipeline systems in nuclear power plants, transformer enclosures exposed to marine environments, pharmaceutical equipment (for drug purity), food production equipment.

• Matching Welding Materials

  AWS A5.14 welding wire ERNiCrMo-3 or AWS A5.11 welding rod ENiCrMo-3. Welding procedures and guidance documents are available upon request.

• Supply Styles

  Sheet, strip, rod, wire, forgings, bright bars, welding materials, flanges, etc., can be processed according to drawings.