Hot Galvanized Steel Pipe

Hot Galvanized Steel Pipe

Short Description:

1. Hot galvanized steel pipe specification 1)  Standard: GB/T3091-2001, A53, EN10255, DIN2440, BS1387 etc.; 2) Materials: Q235, Q345B, Gr.B, S195T, ST35 etc.; 3) OD: 13.7 mm-323.9 mm; 4) WT: 1.0mm-12mm; 5) Length: 2m-12m; 6) Application: construction, machinery, coal, chemical, railway vehicles, the automotive industry, road, bridges, containers, sports facilities, agricultural machinery, oil machinery, mining machinery and other manufacturing industries; 2. Galvanized steel pipe connec...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Hebei China
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Technical data

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    Product Tags

    1. Hot galvanized steel pipe specification
    1)  Standard: GB/T3091-2001, A53, EN10255, DIN2440, BS1387 etc.;
    2) Materials: Q235, Q345B, Gr.B, S195T, ST35 etc.;
    3) OD: 13.7 mm-323.9 mm;
    4) WT: 1.0mm-12mm;
    5) Length: 2m-12m;
    6) Application: construction, machinery, coal, chemical, railway vehicles, the automotive industry, road, bridges, containers, sports facilities, agricultural machinery, oil machinery, mining machinery and other manufacturing industries;

    2. Galvanized steel pipe connection
    Hot dip galvanized into and cold plating, redu easy to rust, cold plating on rust easily.
    Galvanized steel connection: thread, weld;


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  • 1. Hot  galvanized steel pipe specification

     

    2. Pipe geometric tolerance

    Standard code content items SY/T5037 -2000 T9711 -1997 (A class pipe) API 5L(43 version)
    Applications Gas, water, kerosene, air, heating, steam and other general fluid pipes with steel pipes Oil and gas industry transmission pipe Oil and gas industry transmission pipe
    Steel Q195、Q215、Q235 L175 -L483 A、B、X42 ~ X70
    Size body OD D<508  ±0.75%D
    D≥508  ±1.00%D
    D<508  ±0.75%D
    D≥508  ±1.00%D
    D<508  ±0.75%D
    508≤D≤914   -0.25%D ~ +0.75%D
    D>914  -0.32%D ~ +6.35%D
    end OD D<508  ±0.75%D or ±2.5  be minimum
    D≥508  ±0.50%D or ±45   be minimum
    D≤273.1    -0.40 ~ +1.59
    D>323.9  -0.79 ~ +2.38
    D≤273.1    -0.40 ~ +1.59
    D>323.9  -0.79 ~ +2.38
    Tolerance W.T. <508 ±12.5%t -12.5%t ~ +12.5%t -12.5%t ~ +12.5%t
    ≥508 ±10.0%t L175 ~ L245 -10.0%t ~ +17.15%t
    L290 ~ L555  -8.0%t ~ +19.5%t
    Not beyond B class -12.5%t ~ +17.5%t
    Not lower than X42 -8.0%t ~ +19.5%t
    Oval tube Inner tube end range 100 ±1%D D>508 steel in the range from 101.6 max OD of the pipe end can not be larger than the DN of 1%D; smallest OD than the DN shall be 1% D D>508 steel in the range from 101.6 max OD of the pipe end can not be larger than the DN of 1%D; smallest OD than the DN shall be 1% D
    Curvature degree(straightness) Not exceed 0.2% of the pipe length Not exceed 0.2% of the pipe length Not exceed 0.2% of the pipe length
    Pipe end beveling Bevel degree 30° -35°  blunt edge1.6±0.8 Bevel degree 30° -35°  blunt edge 1.59±0.79 Bevel degree 30° -35°  blunt edge 1.59±0.79
    Tilt 1.6≤D<813 <1.59 <1.59
    Misalignment t≤12.7 0.35t and not more than 3.0 <1.59 <1.59
    t>12.7 0.25t 0.1251 and 3.18  take the minimum value 0.1251 and 3.18  take the minimum value
    Weld reinforcement t≤13…<3.2
    t>13  <4.8
    t≤12.7…<3.18
    t>12.7  <4.76
    t≤12.7…<3.18
    t>12.7  <4.76
    Chemical analysis Take one sample from each batch Take two samples from each batch Take two samples from each batch
    Tensile test Take one welded joint sample from each batch Base matel: take one sample from each smelting batch
    Spiral weld:take one sample from each smelting batch
    butt weld: not more than 50 to take one sample
    Base matel: take one sample from each smelting batch
    Spiral weld:take one sample from each smelting batch
    butt weld: not more than 50 to take one sample
    Guided bend test No Each batch take a positive test sample and an anti-bend bend sample,
    butt weld no more than 50 to take a positive bend and an anti-bend sample.
    Each batch take a positive test sample and an anti-bend bend sample,
    butt weld no more than 50 to take a positive bend and an anti-bend sample.
    Fracture toughness testing No When the contract requirements,smelting complex batch takes three samples;
    D≥508, the drop hammer impact each smelting batch take two.
    When the contract requirements,smelting complex batch takes three samples;
    D≥508, the drop hammer impact each smelting batch take two.

    Hot galvanized steel pipe production process

    We have two kinds of packaging:

    1. Packaging suitable for every kind of transport;

    2. According to customer’s requirement to packaging;

     

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