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      直縫焊管

      詳細說明



       

      Product Name

      Material

      Standard

      Specification

      Application

      ERW steel pipe

      20#  Q195  Q215A,B
      Q235A,B  Q345A,B,C,D,E

      GB/T13793-1992
      GB3091-2001

      ∮32-630*1-30

      Apply to structure support, low pressure fluid transport

       

      Standard

      Steel grade

      Chemical composition

      C

      Mn

      Si

      Cu

      Ni

      Cr

      Mo

      V

      P

      S

      ASTMA106/
      ASMESA106

      A

      ≤ 0.25

      0.27 ~ 0.93

      ≥ 0.10

      ≤ 0.40

      ≤ 0.40

      ≤ 0.40

      ≤ 0.15

      ≤ 0.08

      ≤ 0.035

      ≤ 0.035

      B

      ≤ 0.30

      0.29 ~ 1.06

      ≥ 0.10

      ≤ 0.40

      ≤ 0.40

      ≤ 0.40

      ≤ 0.15

      ≤ 0.08

      ≤ 0.035

      ≤ 0.035

      C

      ≤ 0.35

      0.29 ~ 1.06

      ≥ 0.10

      ≤ 0.40

      ≤ 0.40

      ≤ 0.40

      ≤ 0.15

      ≤ 0.08

      ≤ 0.035

      ≤ 0.035

      Mechanical property
       

      Tensile strength (MPa)

      Yield strength (MPa)

      A

      ≥ 330

      ≥ 205

      B

      ≥ 415

      ≥ 240

      C

      ≥ 485

      ≥ 275

       

      Note:
      ①If the carbon content decreasing by 0.01% on the specified maximum carbon content, the manganese content allowed to increase 0.06% on the specified maximum manganese carbon content.
      ②Cu+Ni+Cr+Mo+V≤1.00
      Dimension tolerance:


      Steel pipe

      OD(D)

      Thickness(S)

      Cold drawn pipe

      OD

      Tolerance

      TH

      Tolerance

      >30~50

      +0.3%

      ≤25

      +10%

      >50~325

      +0.8%


      Hot rolled pipe

      >6~168

      +1.0%

      ≤25

      -10%,+12.5%




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