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  • Seamless Steel Pipes - China

    price: contact company for price

    MECHANICAL SEAMLESS STEEL TUBING

    Usage: Applicable to the general structure, mechanical structure with seamless steel pipes.

    Quality Standard:

    API 5L Standard Specification for Seamless Line Pipe or Seamless Pipe Line

    ASTM A 53 Standard Specification for Pipe, Steel, Black and Hot- Dipped, Zinc- Coated, Welded and Seamless

    ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing

    ASTM A106 Seamless Carbon Steel Pipes for oil pipeline and gas pipeline transportation

    GB/ T8162 Seamless Steel Tubes for Structural Purposes

    JIS G3441 Alloy steel tubes for machine purposes

    JIS G3444 Carbon steel pipes for general structural purposes

    JIS G3445 Carbon steel tubes for machine structural purposes

    DIN 2391 Seamless Precision Steel Tubes

    EN10305 Steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubes

    EN 10297 Hot rolled seamless steel tubes with an application in the mechanical and general engineering

    EN 10210: Seamless structural steel pipes

    Steel Grade:

    API 5L: Grade A, Grade B, X42, X46, X52, X56, X60, X65, X70, X80

    ASTM A 53: Grade A, Grade B, Grade C, Type F, Type E

    ASTM A519: 1010- 1045, 4130- 4142, 5135

    GB/ T8162: 10, 20, 35, 45, 16Mn, 12C rMo, 15CrMo, 12C rl MoV

    JIS G3441: SCM 415 TK, SCM 418 TK, SCM 425 TK, SCM 440 TK

    JIS G3444: STKM 11A, STKM 12, STKM 13, STKM 14, STKM 15, STKM 16, STKM 17, STKM 18

    STKM 19, STKM 20

    DIN 2391: St30Si, St30A1, St35, St45, St52

    EN10305: E235, E355

    EN 10297: E355K2, E470, E420J2, E590K2

    EN 10210: S235JRH; S275J0H, S275J2H; S355J0H, S355J2H; S275NH, S355NH; S275NLH, S355NLH

    Size and Specification of Seamless steel pipe

    Outer Diameter: Hot finish: 2' - 30' , Cold drawn: 0.875' - 18'

    Wall Thickness: Hot finish: 0.250' - 4.00' , Cold drawn: 0.035' - 0.875'

    Length: Random Length, Fixed Length, SRL, DRL

    Heat treatment: Annealed: Bright annealed, , Spheroidize annealed

    Normalized, Stress relieved, Cold finished, Quenched and Tempered

    Delivery Condition: BKS, NBK, BK , BKW, GBK( +A) , NBK( +N) , BK( +C)

    Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2, 000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips

    Test: Chemical Component Analysis, Mechanical Properties ( Ultimate tensile strength, Yield

    strength, Elongation) , Technical Properties ( Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc) , Exterior Size Inspection.

    Mill Test Certificate: EN 10204/ 3.1B


    Company Contact:


    • Phone: 8673188706015

    • Address: 22th Floor, Royal Wing, Longchamp Garden Hotel,, Changsha, China

    • Email: Email


    Published date: June 7, 2014 -

    • Business Description: Hunan Great Steel Pipe Co.,Ltd.is a professional manufacturer of steel products ,Our main products are seamless steel pipes, ERW, SSAW, LSAW pipes with production capacity of 2,000,000MT per year.
      The range of our products:
      Seamless steel pipe:OD: 1/4 inch 36 inch, wall thickness:1.25mm to 50mm,
      ERW steel pipe: OD:1/8 inch to 24 inch, wall thickness: max 26.5mm
      LSAW steel pipe: OD:16 inch to 64 inch , wall thickness: max 65mm
      Spiral welded steel pipe: OD:219mm to 3120mm, wall thickness: 3mm to 25mm

      HSSG is the key national high tech enterprises,and the base backbone enterprises of the State Torch Program in iron and steel industry.

      In pace with reform and open going on deep and the encouragement and support of the nation policy,The direction of state enterprise reform is to establish morden enterprise system, the important way of which is corporationalization,HSSG born in an environment full of both challenges and opportunities HSSG is a South North Water Diversion, major projects such as the West East Gas Transmission welding of the main suppliers of steel pipeline HSSG has 1825 employees which included more than 482 professional engineers, with total assets of RMB 2 billion HSSG has constructed and invested five steel pipe factories which can privide the full products range for oil and gas pipeline and also in the preparation of complete construction plans for the international projects.

      We will continually strive to establish brand image, create good credit standing and develop into a giant in the steel pipe industry!

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