Mass31.49kg/m
A4,012mm²
Ix44.69710⁶ mm⁴
Zx354.710³ mm³
Dimensions
| Parameter | Symbol | Value | Unit | Data |
|---|---|---|---|---|
| Depth | d | 252.0 | mm | U |
| Flange width | bf | 146.0 | mm | U |
| Flange thickness | tf | 8.6 | mm | U |
| Web thickness | tw | 6.1 | mm | U |
| Root radius | r1 | 8.9 | mm | U |
Section Properties
| Parameter | Symbol | Value | Unit | Data |
|---|---|---|---|---|
| General | ||||
| Mass per metre | mass | 31.49 | kg/m | C |
| Gross area | A | 4,012 | mm² | C |
| About x-axis (major) | ||||
| Second moment of area Ix | Ix | 44.697 | 10⁶ mm⁴ | C |
| Elastic section modulus Zx (min) | Zx | 354.7 | 10³ mm³ | C |
| Plastic section modulus Sx | Sx | 397.6 | 10³ mm³ | C |
| Radius of gyration rx | rx | 105.6 | mm | C |
| About y-axis (minor) | ||||
| Second moment of area Iy | Iy | 4.467 | 10⁶ mm⁴ | C |
| Elastic section modulus Zy (min) | Zy | 61.2 | 10³ mm³ | C |
| Plastic section modulus Sy | Sy | 94.2 | 10³ mm³ | C |
| Radius of gyration ry | ry | 33.4 | mm | C |
| Torsion & warping | ||||
| Torsion constant JApproximate thin-walled value, fillets neglected | J | 0.080 | 10⁶ mm⁴ | C |
| Warping constant IwIy·(d−tf)²/4 | Iw | 66.16 | 10⁹ mm⁶ | C |
| Surface area | ||||
| External surface area | extArea | 1.061 | m²/m | C |
Nominal designation mass 31.40 kg/m; calculated 31.49 kg/m (+0.3%).
Steel Grades
| Grade | Standard | fy MPa | fu MPa | Note | Data |
|---|---|---|---|---|---|
| 300 | AS/NZS 3679.1:2016 | 320 | 440 | Typical grade supplied – confirm availability with supplier | U |
Strengths shown for governing thickness t = 8.6 mm. Density 7850 kg/m³, E = 200 000 MPa.
Source & Verification
- Source publisher
- Pending verification – nominal dimensions entered by the application developer
- Source document
- AS/NZS 3679.1:2016 Structural steel – Hot-rolled bars and sections
- Edition
- 2016
- Publication year
- 2016
- Page reference
- —
- Last updated
- 2026-10-12
- Verification status
- Unverified
Nominal dimensions require verification against the current edition of the product standard and the manufacturer catalogue before design use. Properties are calculated by this application from the nominal dimensions.