Dimensions
| Parameter | Symbol | Value | Unit | Data |
|---|---|---|---|---|
| Depth | d | 792.0 | mm | U |
| Flange width | bf | 300.0 | mm | U |
| Flange thickness | tf | 16.0 | mm | U |
| Web thickness | tw | 8.0 | mm | U |
Section Properties
| Parameter | Symbol | Value | Unit | Data |
|---|---|---|---|---|
| General | ||||
| Mass per metre | mass | 123.09 | kg/m | C |
| Gross area | A | 15,680 | mm² | C |
| About x-axis (major) | ||||
| Second moment of area Ix | Ix | 1,738.078 | 10⁶ mm⁴ | C |
| Elastic section modulus Zx (min) | Zx | 4,389.1 | 10³ mm³ | C |
| Plastic section modulus Sx | Sx | 4,880.0 | 10³ mm³ | C |
| Radius of gyration rx | rx | 332.9 | mm | C |
| About y-axis (minor) | ||||
| Second moment of area Iy | Iy | 72.032 | 10⁶ mm⁴ | C |
| Elastic section modulus Zy (min) | Zy | 480.2 | 10³ mm³ | C |
| Plastic section modulus Sy | Sy | 732.2 | 10³ mm³ | C |
| Radius of gyration ry | ry | 67.8 | mm | C |
| Torsion & warping | ||||
| Torsion constant JApproximate thin-walled value, fillets neglected | J | 0.949 | 10⁶ mm⁴ | C |
| Warping constant IwIy·(d−tf)²/4 | Iw | 10,844.05 | 10⁹ mm⁶ | C |
| Surface area | ||||
| External surface area | extArea | 2.768 | m²/m | C |
Nominal designation mass 122.00 kg/m; calculated 123.09 kg/m (+0.9%).
Steel Grades
| Grade | Standard | fy MPa | fu MPa | Note | Data |
|---|---|---|---|---|---|
| 300 | AS/NZS 3679.2:2016 | 300 | 430 | Typical grade – confirm with manufacturer | U |
Strengths shown for governing thickness t = 16.0 mm. Density 7850 kg/m³, E = 200 000 MPa.
Where to buy
Producers of Welded & built-up sections – local mills first. Buy direct from the mill for large tonnages, or through a steel distributor / stockist for small quantities and cut lengths.
No producer has been listed for this product type yet. Mills can be added as XML in data/mills/ or through the admin upload page.
Buying checklist
- Specify the section designation, product standard and steel grade exactly (e.g. "800WB122 – AS/NZS 3679.2:2016 – 300").
- 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.
Source & Verification
- Source publisher
- Pending verification – nominal dimensions entered by the application developer
- Source document
- AS/NZS 3679.2:2016 Structural steel – Welded I sections
- Edition
- 2016
- Publication year
- 2016
- Page reference
- —
- Last updated
- 2026-10-12
- Verification status
- Unverified
Welded section: web-to-flange fillet welds neglected in calculated properties. Nominal dimensions require verification against AS/NZS 3679.2:2016 Structural steel – Welded I sections and the manufacturer catalogue.