SHINESTAR STEEL GROUP CO., LTD

盛仕达钢铁股份有限公司

Seamless Steel Pipe

Short Description:


  • Keywords: Seamless Pipe, Seamless Carbon Steel Pipe, Seamless Structural Pipe, Seamless Boiler Pipe, Heat Exchanger Tubes, Seamless Cold Drawn Tubes, Hot Finished Seamless Pipes
  • Size: OD: 1/8'' ~ 48'' (10.3 ~ 1219mm);WT: SCH 10 ~ 160, SCH STD, SCH XS, SCH XXS ; LENGTH: Fixed Length (5.8/6/11.8/12mtr), SRL, DRL
  • Standard & Grade: ASTM A106, Grade A/B/C
  • Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
  • Usage: Used for Low Pressure Liquid Delivery, Such As Water, Gas, and Oil
  • Finish: No.1 Pickled Finish, BA Finish, No.4 Finish, Electropolished Seamless Steel Pipes
  • Delivery: Within 30 days and Depends on your order quantity
  • Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
  • Product Detail

    Specification

    Standard

    Process

    Packing & Loading

    Seamless Steel Pipe Manufacturing Process 

    Mandrel Mill Process

    In the Mandrel Mill Process, a solid round (billet) is used. It is heated in a rotary hearth heating furnace and then pierced by a piercer. The pierced billet or hollow shell is rolled by a mandrel mill to reduce the outside diameter and wall thickness which forms a multiple length mother tube. The mother tube is reheated and further reduced to specified dimensions by the stretch reducer. The tube is then cooled, cut, straightened and subjected to finishing and inspection processes before shipment.

    Manner Man Plug Mill Process

    In the Plug Mill Process, a solid round (billet) is used. It is uniformly heated in the rotary hearth heating furnace and then pierced by a Manner man pieces. The pierced billet or hollow shell is roll reduced in outside diameter and wall thickness. The rolled tube simultaneously burnished inside and outside by a reeling machine. The reeled tube is then sized by a sizing mill to the specified dimensions. From this step the tube goes through the straightener. This process completes the hot working of the tube. The tube (referred to as a mother tube) after finishing and inspection, becomes a finished product.

    01

    Application of SMLS Pipe 

    - Chemical Industry
    - Paper Industry
    - Fertilizer Industry
    - Fabric Industry
    - Aviation Industry
    - Nuclear Industry
    - Fluid Industry
    - Gas and Oil Industry
    - Heat Transmission Industry
    - Pressure Service
    - Construction and Ornamental
    - Boilers and Heat exchangers
    - Auto Parts
    - Medical Device
    - Food Industry
    - Building Materials

     

    We are a professional Stainless Steel Pipe manufacturer. We provide Stainless Steel Pipe of different sizes as well as steel pipes and pipe fittings of various specifications.

    Our Advantages:
    1. China-leading product service provider and exporter of steel pipe
    2. Competitive price and quality from our own factory
    3. One-stop Resource Integration
    4. Passed the ISO9001, CE, SGS certification every year
    5. Best service with 24-hour response
    6. Flexible payment methods
    7. Strong production capacity
    8. Fast delivery and standard export packaging
    9. OEM/ODM


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  • Features of  Seamless Steel Pipe

    Types Uses
    Structure Purposes General structure and mechanical
    Liquid Services Petroleum, gas and other fluids conveying
    Low and Medium Pressure Steam and boiler manufacturing
    Hydraulic Pillar Service Hydraulic support
    Auto Semi-shaft Casing Auto seam-shaft casing
    Line Pipe Oil and gas conveying
    Tubing and Casing Oil and gas conveying
    Drill Pipes Well drilling
    Geological Drilling Pipes Geological drilling
    Petroleum Cracking Tubes Furnace tubes, heat exchange

     

    Dimension

    Pipe types Pipe Szie(mm) Tolerances
    Hot rolled OD <50 ±0.50mm
        ≥50 ±1%
      WT <4 ±12.5%
        ≥4~20 +15%, -12.5%
        >20 ±12.5%
    Cold drawn OD 6~10 ±0.20mm
        10~30 ±0.40mm
        30~50 ±0.45
        >50 ±1%
      WT <1 ±0.15mm
        >1~3 + 15%, – 10%
        >3 + 12.5%, – 10%

    Chemical Composition Requirements

    Standard

    Grade

    Chemical Components (%)

    Mechanical Properties

       

    c

    Si

    Mn

    P

    S

    Mo

    Cr

    V

    Tensile STrength(Mpa)

    Yield STrength(Mpa)

    Elongation

    (%)

    ASTM A53

    A

    ≤0.25

    /

    ≤0.95

    ≤0.05

    ≤0.06

    ≤0.15

    ≤0.40

    ≤0.08

    ≥330

    ≥205

    ≥29.5

     

    B

    ≤0.30

    /

    ≤1.2

    ≤0.05

    ≤0.06

    ≤0.15

    ≤0.40

    ≤0.08

    ≥415

    ≥240

    ≥29.5

     

    Standard

    Grade

    Chemical Components(%)

    Mechanical Properties

       

    c

    Si

    Mn

    P

    S

    Mo

    Cr

    V

    Tensile STrength

    (Mpa)

    Yield STrength

    (Mpa)

     Elongation(%)

    ASTM A106

    A

    ≤0.30

    ≥0.10

    0.29-1.06

    ≤0.035

    ≤0.035

    ≤0.15

    ≤0.40

    ≤0.08

    ≥415

    ≥240

    ≥30

     

    B

    ≤0.35

    ≥0.10

    0.29-1.06

    ≤0.035

    ≤0.035

    ≤0.15

    ≤0.40

    ≤0.08

    ≥485

    ≥275

    ≥30

     

    Standard

    Grade

    Chemical Components(%)

    Mechanical Properties

       

    c

    Si

    Mn

    P

    S

    Tensile STrength(Mpa)

    Yield STrength(Mpa)

    Elongation(%)

    ASTM A179

    A179

    0.06-0.18

    /

    0.27-0.63

    ≤0.035

    ≤0.035

    ≥325

    ≥180

    ≥35

     

    Standard

    Grade

    Chemical Components(%)

    Mechanical Properties

       

    c

    Si

    Mn

    P

    S

    Tensile STrength(Mpa)

    Yield STrength(Mpa)

    Elongation(%)

    ASTM A192

    A192

    0.06-0.18

    ≤0.25

    0.27-0.63

    ≤0.035

    ≤0.035

    ≥325

    ≥180

    ≥35

     

    Standard

    Grade

    Chemical Components

    Tensile STrength(min)

    Yield Strength(min)

    C

    Mn

    P

    S

    Mpa

    Mpa

    API 5L PSL1

    A

    0.22

    0.90

    0.030

    0.030

    331

    207

    B

    0.28

    1.20

    0.030

    0.030

    414

    241

    X42

    0.28

    1.30

    0.030

    0.030

    414

    290

    X46

    0.28

    1.40

    0.030

    0.030

    434

    317

    X52

    0.28

    1.40

    0.030

    0.030

    455

    359

    X56

    0.28

    1.40

    0.030

    0.030

    490

    386

    X60

    0.28

    1.40

    0.030

    0.030

    517

    414

    X65

    0.28

    1.40

    0.030

    0.030

    531

    448

    X70

    0.28

    1.40

    0.030

    0.030

    565

    483

    Standard

    Grade

    Chemical Components

    Tensile STrength(min)

    Yield Strength(min)

    C

    Mn

    P

    S

    Mpa

    Mpa

    API 5L PSL2

    B

    0.24

    1.20

    0.025

    0.015

    414

    241

    X42

    0.24

    1.30

    0.025

    0.015

    414

    290

    X46

    0.24

    1.40

    0.025

    0.015

    434

    317

    X52

    0.24

    1.40

    0.025

    0.015

    455

    359

    X56

    0.24

    1.40

    0.025

    0.015

    490

    386

    X60

    0.24

    1.40

    0.025

    0.015

    517

    414

    X65

    0.24

    1.40

    0.025

    0.015

    531

    448

    X70

    0.24

    1.40

    0.025

    0.015

    565

    483

    X80

    0.24

    1.40

    0.025

    0.015

    621

    552

    Manufacturing process of Seamless Steel Pipe

    Seamless Steel Pipe

     

    Painting & Coating: bare, lightly oiled, black/red/yellow painting, zinc/anti-corrosive coating

    the packing of seamless steel pipe