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CARBON STEEL SEAMLESS PIPE

Seamless Steel Pipe 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 inch to 32 inch OD. Carbon Steel Seamless Pipes / Tubes Carbon steel is an alloy consisting of iron and carbon. The percentage of carbon in the steel affects the hardness, strength of elasticity and ductility of carbon steel. Seamless carbon steel pipe or solid steel ingot is made of the capillary tube through the hole, then through the hot-rolled, cold rolled or cold call is made. Seamless carbon steel pipe in China’s steel industry has an important position. Seamless carbon steel pipe material is a round tube, pipe cutting machine embryos to go through cutting about 1 m of length blank, and sent by conveyor belt furnace heating. Billet is fed into the heating furnace, the temperature is about 1200 degrees Celsius. Fuel is hydrogen or acetylene. Furnace temperature control is the key issue. Round tube came out to punch through the machine through air pressure. Generally more common punch is tapered roll perforation machine, the punch high production efficiency, product quality, large diameter hole expansion, can wear a variety of steel. Perforation, round tube has been on three-roll cross rolling, rolling or extrusion. Squeezed off the tube after sizing. Sizing by high-speed rotary cone drill holes into the billet to form a tube. Pipe diameter by the sizing mill to determine the length of the drill diameter. After the pipe through the sizing into the cooling tower, cooling by water spray, steel after cooling, should be straightening. After the steel belt sent by straightening metal testing machine (or pressure test) for internal testing. If the pipe internal cracks, bubbles and other problems will be detected. After the pipe but also through strict quality control manual selection. Steel quality, the use of spray paint numbers, specifications, production lot number. By a crane into the warehouse.

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SHORT DESCRIPTIONS:

  • Keywords（pipe type）:Carbon steel pipe,Seamless Steel Pipe, Seamless
  • Size:OD:13.72-4064mm / WT: 1.65-40mm, Length: 0.5mtr-20mtr
  • Standard & Grade:ASTM A106, Grade A/B/C
  • Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
  • Delivery:Within 30 days and Depends on your order quantity
  • Payment:TT, LC , OA , D/P
  • Packing:Bundle or bulk , seaworthy packing or for the client's requirement
  • Usage:For conveying gas, water and oil either in the oil or natural gas industries

    • DESCRIPTIONS:

    THE WALL THICKNESS OF SEAMLESS PIPE
    MM INCH ASME DIN DIN ASME JIS ASME ASME ASME ASME
    A B O.D O.D Thickness SCH20 SGP STD SCH40 XS SCH80
    6 1/8” 10.3 2 1.73 1.73 2.41 2.41
    8 1/4” 13.5 2.3 2.24 2.24 3.02 3.02
    10 3/8” 17.1 17.2 1.8 2.3 2.31 2.31 3.02 3.02
    15 1/2” 21.3 21.3 2 2.5 2.8 2.77 2.77 3.37 3.73
    20 3/4” 26.7 26.9 2.3 2.5 2.8 2.87 2.87 3.91 3.91
    25 1” 33.4 33.7 2.6 3 3.2 3.38 3.38 4.55 4.55
    32 1.1/4” 42.2 42.4 2.6 3 3.5 3.56 3.56 4.85 4.85
    40 1.1/2” 48.3 48.3 2.6 3 3.5 3.68 3.68 5.05 5.05
    50 2” 60.3 60.3 2.9 3.2 3.8 3.91 3.91 5.54 5.54
    65 2.1/2” 73 76.1 2.9 4.5 4.2 5.16 5.16 7.01 7.01
    80 3” 88.9 88.9 3.2 4.5 4.2 5.49 5.49 7.62 7.62
    90 3.1/2” 101.6 101.6 4.5 4.2 5.74 5.74 8.08 8.08
    100 4” 114.3 114.3 3.6 4.9 4.5 6.02 6.02 8.56 5.56
    125 5” 141.3 139.7 4 5.1 4.5 6.55 6.55 9.53 9.53
    150 6” 168.3 168.3 4.5 5.5 5 7.11 7.11 10.97 10.97
    200 8” 219.1 219.1 6.3 6.35 5.8 8.18 8.18 1.27 1.27
    250 10” 273 273 6.3 6.35 6.6 9.27 9.27 12.7 15.09
    300 12” 323.8 323.8 7.1 6.35 6.9 9.53 10.31 12.7 17.48
    350 14” 356.6” 356.6” 8 7.2 7.9 9.53 11.13 12.7 19.05

    Tolerance of Outer Diameter and Wall thickness

    Standard Tolerance of Outer Diameter (mm) Wall thickness(mm)
    OD(mm) Tolerence of OD OD≤130mm OD>130mm
    ARM A53 <48.3 +0.4mm-0.79mm All ±12.5%
    <60.3 +1%
    ASTM A106 <48.3 +0.4mm-0.79mm All ±12.5%
    <48.3-114.3 +0.4mm-0.79mm
    >114.3 ±1.59-0.79mm

    SPECIFICATION

    standard Description
    ASTM A179/A179M Seamless cold drawn low alloy steel heat exchanger and condenser tubes.
    API 5L Line pipe.
    ASTM A53M Black & Zinc Coated Welded and Seamless Steel Pipe.
    ASTM A106M Seamless carbon steel pipe for high temperature service.
    ASTM A105M Carbon steel forgings for piping applications.
    ASTM A234M Piping fittings of wrought carbon steel and alloy steel for moderate and high temperature service.
    ASTM 3799 Steel pipe fittings, screwed and socket weldability for the petroleum industry.
    AS 1163 Structural steel hollow sections
    AS 1074 Steel tubes and tubulars for ordinary service
    BS13872 Screwed and socketed steel tube and tubulars

    STANDARD

    Standard Grade Tensile Strength Yield Strength
    API SPEC 5L
    ISO 3183    		 SMLS PLS1 L245B, L290 X42, L320 X46 , L360 X52,
    L390 X56, L415 X60, L450 X65, L485 X70
    PLS2 L245N BN, L290N X42N, L320N X46N,
    L360N X52N, L390N X56N, L415N X60N,
    L360Q X52Q, L390Q X56Q, L415Q X60Q , L485Q X70Q
    PLS2 Sour Environment L245N BN, L290N X42N, L320N X46N,
    L360N X52N, L390N X56N, L415N X60N,
    L360Q X52Q, L390Q X56Q, L415Q X60Q , L485Q X70Q
    WELD PLS1 L245N BN, L290N X42N, L320N X46N,
    L360N X52N, L390N X56N, L415N X60N,
    L360Q X52Q, L390Q X56Q, L415Q X60Q , L485Q X70Q
    PLS2 L245N BN, L290N X42N, L320N X46N,
    L360N X52N, L390N X56N, L415N X60N,
    L360Q X52Q, L390Q X56Q, L415Q X60Q , L485Q X70Q

    standard and grade

    standard Grade
    ASTM A 53 M A , B
    ASTM A 106M A, B, C
    JIS G 3454 STPG 370, STPG 410
    JIS G 3455 STPG370, STPG410, STPG480
    JIS G 3456 STPG370, STPG410, STPG480

    Grade:chemical composition

    Chemical Composition (%):
    Standard Grade C Si Mn P S Ni Cr Cu Mo V
    ASTM A53M A ≤0.25 - ≤0.95 ≤0.05 ≤0.045 ≤0.40 ≤0.40 ≤0.40 ≤0.15 ≤0.08
    B ≤0.30 - ≤1.20 ≤0.05 ≤0.045 ≤0.40 ≤0.40 ≤0.40 ≤0.15 ≤0.08
    ASTM A 106M A ≤0.25 ≥0.10 0.27-0.93 ≤0.035 ≤0.035 ≤0.40 ≤0.40 ≤0.40 ≤0.15 ≤0.08
    B ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≤0.40 ≤0.40 ≤0.40 ≤0.15 ≤0.08
    C ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≤0.40 ≤0.40 ≤0.40 ≤0.15 ≤0.08
    JIS G 3454 STPG 370 ≤0.25 ≤0.35 0.30-0.90 ≤0.040 ≤0.040 - - - - -
    STPG 410 ≤0.30 ≤0.35 0.30-1.00 ≤0.040 ≤0.040 - - - - -
    JIS G 3455 STS 370 ≤0.25 0.10-0.35 0.30-1.10 ≤0.035 ≤0.035 - - - - -
    STS 410 ≤0.30 0.10-0.35 0.30-1.40 ≤0.035 ≤0.035 - - - - -
    STS 480 ≤0.33 0.10-0.35 0.30-1.50 ≤0.035 ≤0.035 - - - - -
    JIS G 3456 STPT 370 ≤0.25 - - - - - - - - -