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  • Cangzhou Steel Pipe Group (CSPG) Co., Ltd.
  • ADD:No.92 Jiefang East Rd., Cangzhou City, Hebei Province, China
  • TEL:+86-31-75673271
  • MOBILE:+8615373302068
  • E-MAIL:ella@cnspipe.com
  • Seamless Pipe ASTM A312 Tp304

    Seamless Steel Pipe(SMLS) is made from a solid round steel billet which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. The seamless pipe is then finished to dimensional and wall thickness specifications in sizes from 1/8'' to 36'' OD.
    Product Details:

    Product Name

    300 eries seamless pipe 08x18h10t astm a312 tp321 tp304/304l/304h 08x18h10t astm a312 tp321 tp304/304l/304h all specifications.

    Size

    1/2"—48"

    Thickness

    SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,

    SCH140,SCH160,XXS,DIN, JIS standard thickness

    Standard

    ASTM A53, A106, API 5L, ASME B36.10M-1996
    DIN1626, DIN1629, DIN17175, DIN 2448
    JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461

    Material

    Q235, 20#, Q345
    A53B, A106B, API 5L B,X42,X46,X52,X60, X65
    ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4

    Surface

    Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,etc.

    Pipe end 

    Threaded beveled ,plain ,groove 

    Payment terms 

    TT ,LC 

    Certificate

    ISO9001, SGS,BV, etc

    MOQ 

    2 TONS 

    Capacity

    5000 TONS /month


    Seamless Steel Pipe(SMLS) is made from a solid round steel billet which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. The seamless pipe is then finished to dimensional and wall thickness specifications in sizes from 1/8'' to 36'' OD.

    Models of steel pipes

    Tensile strengthMPa

    Yield strengthMPa

    Elongation

    20

    390min

    245min

    20min

    45

    590min

    335min

    14min

    16Mn(Q345B)

    490min

    325min

    21min


    Models of steel pipes

    C

    Si

    Mn

    P

    S

    Cu

    Ni

    Cr


    20

    0.17-0.24

    0.17-0.37

    0.35-0.65

    0.035max

    0.035max

    0.25max

    0.25max

    0.25max

    45

    0.42-0.50

    0.17-0.37

    0.50-0.80

    0.035max

    0.035max

    0.25max

    0.25max

    0.25max

    16Mn(Q345B)

    0.12-0.20

    0.20-0.55

    1.20-1.60

    0.035max

    0.035max

    0.25max

    0.25max

    0.25max


    Seamless steel pipe

    Seamless steel pipe (SMLS) is formed by drawing a solid billet over a piercing rod to create the hollow shell, without welding or seam. It is suitable for bending and flanging. The most advantage is increasing the ability of withstanding higher pressure. So it is widely used for boiler and pressure vessel, automotive area, oil well, and equipment components.

    Seamless steel pipe can be cut, threaded or grooved. And the coating method includes black / red lacquer, varnish painting, hot dip galvanization, etc.

    image001_副本


    We provide welded steel pipe as standard:

    ASTM A106 Seamless Carbon Steel Pipe for High-Temperature Service
    ASTM A53 Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Seamless
    DIN 1629 Seamless Circular Tubes of Non Alloys Steel with Special Quality Requirement
    DIN 2391-1 Seamless Precision Steel Tubes
    JIS G3454 Carbon Steel Pipe for Pressure Service


    ASTM A106 Seamless steel pipe

    image004

    *Specification: ASTM A106

    *Dimension: ASME B36.10

    *Outer Diameter: 1/2” to 20”(DN15-DN500)

    *Wall Thickness: SCH40, SCH80

    *Pipe End: Beveled, Plain, Threaded

    *Surface: Black painting, Hot dip galvanized as ASTM A123

    1_副本


    ASTM A53 Seamless steel pipe

    image007

    *Specification: ASTM A53

    *Dimension: ASME B36.10

    *Outer Diameter: 1/2” to 20”(DN15-DN500)

    *Wall Thickness: SCH40, SCH80

    *Pipe End: Beveled, Plain, Threaded

    *Surface: Black painting, Hot dip galvanized as ASTM A123

    2_副本


    Production process

    PQF Mill:

    image009

    PQF(Premium Quality Finishing Mill) continuous rolling is the most advanced technology for producing hot rolled seamless steel pipe of modern industry.

    It creates high quality seamless steel pipe efficiently, even for high alloy pipe and light wall pipe.

    Size Range: 2″(60.3mm) to 20″(508mm).

    Delivery Condition: As roll/ Normalized.

    3


    Cold Drawn Mill:

    image010

    Cold drawn mill is used for producing small size pipe. There are several times of cold forming process, so yield strength and tensile strength values increase, while elongation and toughness values decrease. A heat treatment must to be applied for each cold forming operation.

    Comparing hot rolled pipe, cold drawn pipe maintains precise dimension, smooth surface and shining appearance.

    Size Range: 1/2″(21.3mm) to 1-1/2″(48.3mm).

    Delivery Condition: Cold Drawn/ Hard, Cold Drawn / Soft, Cold Drawn and Stress Relief, Annealed, Normalized.

    4


    Cold Rolled Mill:

    image011

    As another type of cold forming process, cold rolled mill also works at room temperature to stretch large size pipe to required small size.

    Comparing cold drawn mill ,it takes pilger mill with fewer cold forming processes and lower productivity, but come out the pie in much precise size and shinning apperance.

    Size Range: 1/2″(21.3mm) to 1-1/2″(48.3mm).

    Delivery Condition: Cold roll, Annealed, Normalized.


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