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GB3087 Steel Pipe

  • Description
Product Detail

    GB3087 is a Chinese Standard for low and middle pressure boiler seamless steel pipes. It is used for manufacturing water wall, economizer, reheater, superheater, and steam pipe.

    Product Name

    10 carbon steel pipe

    20 carbon steel pipe

    chemical analysis

    C:0.07-0.13;Si:0.17-0.37;Mn:0.35-0.65;P: 0.035; S: 0.035;Ni 0.30;Cr: 0.15;Cu 0.25

    C:0.17-0.23;Si:0.17-0.37;Mn:0.35-0.65;P: 0.035; S: 0.035;Ni 0.25;Cr: 0.25;Cu 0.25

    Tensile Strength

    335-475MPa

    410-550MPa

    Yield strength

    T 16mm, 205MPa;

    T 16mm, 195MPa

    T 16mm, 245MPa;

    T 16mm, 235MPa

    Standard


    GB3087


    Length

    As customer s request

    Packaging

    Standard export packing, packed in woven bags, with two nylon slings, or can be customized as request

    Heat Treatment/      Delivery Condition

    1. Cold finished and stress-relieved annealing BKS(+SR)

    Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.

    1. Annealed    GBK(+A)

    The last Cold forming process is followed by annealing in a controlled atmosphere.

    1. Normalized   NBK(+N)

    2. The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

    Delivery Time

    Within 35-50 days from receiving deposit

    Payment Term

    100% L/C at sight or 30% deposit, 70% balance against copy of B/L

    Usage/Application

    Pipes for low and middle pressure boiler

    Main Market

    Asia, Middle East, Europe, etc.

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To:  

Changzhou Hongtai Precision Steel Pipe Co.,Ltd

* Content:  

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