CN · CHS · Hollow sections

Seamless steel pipes

Seamless steel tubes for structural purposes to GB/T 8162, designated Φ outside diameter × wall.

Tick sections to compare. Values in the units shown in each column header.
Select to compare Designation DmmtmmMasskg/mAmm²Ix10⁶ mm⁴Zx10³ mm³Sx10³ mm³rxmm Data
Φ377×12 377.012.0108.0213,760229.3981,217.01,599.3129.1 U
Φ325×10 325.010.077.689,896122.865756.1992.6111.4 U
Φ273×10 273.010.064.868,26271.541524.1692.093.1 U
Φ219×8 219.08.041.635,30329.554269.9356.374.7 U
Φ159×6 159.06.022.642,8848.452106.3140.554.1 U
Φ114×5 114.05.013.441,7122.54844.759.438.6 U
Φ89×4 89.04.08.381,0680.96721.728.930.1 U

V Verified · C Calculated · U Unverified · D Deprecated – what this means

Where to buy

Producers of Hollow sections & pipes – local mills first. Buy direct from the mill for large tonnages, or through a steel distributor / stockist for small quantities and cut lengths.

Nucor

United States · Charlotte, North Carolina

International producer

Standards: ASTM A500, ASTM A1085

Buying checklist
  • Specify the section designation, product standard and steel grade exactly (e.g. "Φ377×12 – GB/T 8162:2018").
  • Ask for mill test certificates (EN 10204 type 3.1 or equivalent) traceable to the heat number.
  • Sections from another standard system are not automatically equivalent – have the engineer approve any substitution.
  • Check availability, minimum order quantity, stock lengths, lead time and delivery terms with the mill or distributor.

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Listing is informational only – not an endorsement, offer or confirmation of availability. Company details are marked UNVERIFIED until checked.