254SMO/UNS S31254/F44

254SMO/UNS S31254/F44

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

  1. Brief introduction:

    254SMO is described as a 6% Mo super austenitic stainless steel.

    254SMO is  is much more resistant than ASTM TP316, and in naturally aerated sulphuric acid containing chloride ions Sandvik 254 SMO exhibits higher resistance than 904L grade.

    254SMO is used in Equipment for handling of seawater,Hydraulic and instrumentation tubing,Equipment in pulp bleaching plants,Components in gas cleaning systems,Tanks and pipelines for chemicals with high halide contents,etc.

     

  2. Main specifications:

    OutokumpuUNSEN No.W.Nr
    254SMOS312541.45471.4529**

     

  3. Chemical composition under ASTM A240 standard:

    chemical composition,%
    GradeNiCrMoMnNCuSiCPSFe
    UNS S3125417.5-18.519.5-20.56.0-6.5≤1.00.18-0.250.5-1.0≤0.8≤0.02≤0.03≤0.01Bal.

     

  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
    EN 10088-3
    ASTM A276
    ASTM A479
    ASTM A473    		ASME SA240
    ASTM A240
    EN 10088-2    		ASTM A269/A213/A312
    NFA 49-217
    EN 10216-5
    ASTM A182

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