Local producer
Standards: GB/T 8162, GB/T 8163
CN · RHS · Hollow sections
Rectangular tubes
Cold-formed rectangular structural tubes to GB/T 6728.
Tick sections to compare. Values in the units shown in each column header.
| Select to compare | Designation | dmm | bmm | tmm | Masskg/m | Amm² | Ix10⁶ mm⁴ | Zx10³ mm³ | Sx10³ mm³ | rxmm | Data |
|---|---|---|---|---|---|---|---|---|---|---|---|
| □300×200×10 | 300.0 | 200.0 | 10.0 | 72.66 | 9,256 | 113.108 | 754.1 | 920.8 | 110.5 | U | |
| □250×150×8 | 250.0 | 150.0 | 8.0 | 46.50 | 5,924 | 48.850 | 390.8 | 482.1 | 90.8 | U | |
| □200×100×6 | 200.0 | 100.0 | 6.0 | 26.16 | 3,332 | 16.719 | 167.2 | 210.1 | 70.8 | 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.
International producer
Standards: JIS G 3444
International producer
Standards: EN 10210, EN 10219
International producer
Standards: JIS G 3444, JIS G 3466
International producer
Standards: ASTM A500, ASTM A1085
International producer
Standards: AS/NZS 1163
Buying checklist
- Specify the section designation, product standard and steel grade exactly (e.g. "□300×200×10 – GB/T 6728:2017").
- 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.
All producers of this product type →
Listing is informational only – not an endorsement, offer or confirmation of availability. Company details are marked UNVERIFIED until checked.