Local producer
Standards: JIS G 3444
JP · STK · Hollow sections
Steel tubes STK
Carbon steel tubes for general structural purposes to JIS G 3444.
Tick sections to compare. Values in the units shown in each column header.
| Select to compare | Designation | Dmm | tmm | Masskg/m | Amm² | Ix10⁶ mm⁴ | Zx10³ mm³ | Sx10³ mm³ | rxmm | Data |
|---|---|---|---|---|---|---|---|---|---|---|
| STK 318.5x10.3 | 318.5 | 10.3 | 78.29 | 9,973 | 118.544 | 744.4 | 978.7 | 109.0 | U | |
| STK 267.4x9.3 | 267.4 | 9.3 | 59.20 | 7,541 | 62.874 | 470.3 | 619.8 | 91.3 | U | |
| STK 216.3x8.2 | 216.3 | 8.2 | 42.08 | 5,361 | 29.065 | 268.7 | 355.3 | 73.6 | U | |
| STK 165.2x5.0 | 165.2 | 5.0 | 19.75 | 2,516 | 8.081 | 97.8 | 128.4 | 56.7 | U | |
| STK 139.8x4.5 | 139.8 | 4.5 | 15.02 | 1,913 | 4.382 | 62.7 | 82.4 | 47.9 | U | |
| STK 114.3x4.5 | 114.3 | 4.5 | 12.19 | 1,552 | 2.343 | 41.0 | 54.3 | 38.9 | U | |
| STK 89.1x3.2 | 89.1 | 3.2 | 6.78 | 864 | 0.798 | 17.9 | 23.6 | 30.4 | U | |
| STK 76.3x3.2 | 76.3 | 3.2 | 5.77 | 735 | 0.492 | 12.9 | 17.1 | 25.9 | U | |
| STK 60.5x3.2 | 60.5 | 3.2 | 4.52 | 576 | 0.237 | 7.8 | 10.5 | 20.3 | U | |
| STK 48.6x2.3 | 48.6 | 2.3 | 2.63 | 335 | 0.090 | 3.7 | 4.9 | 16.4 | 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.
Local producer
Standards: JIS G 3444, JIS G 3466
International producer
Standards: EN 10210, EN 10219
International producer
Standards: GB/T 8162, GB/T 8163
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. "STK 318.5x10.3 – JIS G 3444").
- 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.