904L/N08904/1.4539

904L/N08904/1.4539

Category：Super austenitic» | Date：2023-03-17

  1. Brief introduction:

    Alloy 904L (UNS N08904) is a super austenitic stainless steel with 25% nickel and 4.5% molybdenum.

    Alloy 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.

    It is non-magnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures.

    It’s suitable for pollution control, chemical processing, metallurgical processing, oil and gas production, pharmaceutical industry, pulp and paper, seawater and brakish water industry.

     

  2. Main specifications:

    Common nameUNSW.Nr
    904LN080941.4539

     

  3. Chemical composition under ASTM A240 standard:

    chemical composition,%
    GradeNiCrMoMnCuSiCPSFe
    UNS N0890423.0-28.019.0-23.04.0-5.0≤2.01.0-2.0≤1.0≤0.02≤0.045≤0.035Bal.

     

  4. Main product types:

    wire,rod, bar,strip,sheet/plate,tube/pipe,flanges, etc.

     

  5. Main produce standards:

    Wire, rod, Bar, forgingSheet/plate,Strippipe,flange,fitting,valve
    ASTM A276
    ASTM A479
    ASTM A473
    EN 10088-3    		ASME SA625
    ASME SA240
    ASTM A240
    EN 10088-2    		ASTM A269/A213/A312
    NFA 49-217
    EN 10216-5
    ASTM A182

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