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Structural Steel Pipe
Structural Steel Tube
Structural-Steel-Pipe
Structural Steel Pipe
Structural Steel Tube
Structural-Steel-Pipe

Structural Steel Pipe

Size:

  • Out Diameter: 1/2”-30”(22mm-762mm)
  • Thickness: SCH10,SCH20, STD, SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH160, XXS(2mm-60mm)

Application:

  • Buildings
  • Bridges
  • Towers
  • Cranes
  • Sign supports and poles
  • Off-shore production and drilling platforms
  • Roll-over protective structures (ROPS)
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Structural Steel Pipe Technical

Chemical Components & Mechanical Properties

Standard Grade Chemical composition(%) Mechanical properties
C Si Mn P S Tensile Strength(Mpa) Yield Strength(Mpa) Elongation(%)
DN1629 St37 ≤0.17 ≤0.04 ≤0.04 350-480 ≥235 ≥25
St45 ≤0.21 ≤0.04 ≤0.04 420-550 ≥275 ≥21
St52 ≤0.22 ≤0.55 ≤1.60 ≤0.04 ≤0.035 500-650 ≥355 ≥21

Wall Thickness Tolerances

Wall Thickness Percent of OD Maximum Percent Over & Under Nominal Wall Thickness Percent of OD Maximum Percent Over & Under Nominal
Under 1.499” ID 1.500” ID & Over Under 38.07mm ID 38.07mm ID & Over
Under 10 10 7.5 Under 10 10 7.5
10 to 25 10 6 10 to 25 10 6
Over 25 12.5 7.5 Over 25 12.5 7.5

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