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ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe

    Buy cheap ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe from wholesalers
     
    Buy cheap ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe from wholesalers
    • Buy cheap ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe from wholesalers
    • Buy cheap ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe from wholesalers
    • Buy cheap ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe from wholesalers

    ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe

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    Brand Name : YUHONG
    Model Number : ASTM A335 P9 Alloy Steel Seamless Pipe
    Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
    Payment Terms : L/C,T/T
    Delivery Time : 7 DAYS
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    ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe

    ASTM A335 / ASME SA335 Grade P9 / UNS S50400 Alloy Steel Seamless Pipe Black Painted


    ASTM A335 P9 is a seamless, chromium-molybdenum alloy steel pipe designed for high-temperature and high-pressure applications. With 8–10% chromium and 0.9–1.1% molybdenum, it offers exceptional resistance to oxidation, creep, and thermal stress at temperatures up to 650°C (1,200°F). It is widely used in critical environments like power plant steam lines, oil refineries, petrochemical processing, and boiler systems where long-term reliability under extreme conditions is essential. P9 requires specialized welding/preheat treatment but outperforms lower-grade alloys in demanding industrial settings.


    Equivalent Material ​of ASTM A335/ASME SA335 Alloy Steel Seamless Pipe

    UNSASTMENDINJISGB
    K50400P912Cr9MoX12CrMo91STBA26/

    Chemical composition(%) of ASTM A335/ASME SA335 Alloy Steel Seamless Pipe

    GradeCMnP≤S≤Si≤CrMo
    P11.05-0.150.30-0.600.0250.025.50-1.001.00-1.50.44-0.65
    P22.05-0.160.30-0.600.0250.025≤0.501.90-2.60.87-1.13
    P5≤0.150.30-0.600.0250.025≤0.504.00-6.00.45-0.65
    P9≤0.150.30-0.600.0250.025.25-1.008.00-10.00.90-1.10
    P910.08-0.120.30-0.600.020/0.0100.020/0.010.02-0.508.00-9.50.85-1.05
    P920.07-0.130.30-0.600.020/0.0100.020/0.010≤0.508.50-9.50.30-0.60


    Advantages:

    • Superior creep strength under sustained high temps.

    • Oxidation/sulfidation resistance (due to Cr content).

    • Good weldability (requires pre/post-weld heat treatment).


    Mechanical Property of ASTM A335/ASME SA335 Alloy Steel Seamless Pipe

    Steel GradeTensile Strength, MpaYield Strength, MpaElongation, %
    P5Min: 415Min: 205Min: 30
    P9Min: 415Min: 205Min: 30
    P11Min: 415Min: 205Min: 30
    P12Min: 415Min: 205Min: 30
    P22Min: 415Min: 205Min: 30
    P91Min: 415Min: 415Min: 20

    Application

    1. Power Plants: Superheaters, reheaters, high-temp steam lines.

    2. Oil & Gas: Refinery piping, catalytic cracker units, hydrogen service.

    3. Petrochemical: High-pressure/temperature process pipelines.

    4. Boilers: Critical pressure parts in fossil-fuel boilers.



    Quality ASTM A335 / ASME SA335 P9 / UNS S50400 Cr-Mo Alloy Steel Seamless Pipe for sale
    Company Info.
    Yuhong Group Co.,Ltd
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