Mass25.35kg/m
A3,230mm²
Ix23.52910⁶ mm⁴
Zx231.810³ mm³
Dimensions
| Parameter | Symbol | Value | Unit | Data |
|---|---|---|---|---|
| Depth | d | 203.0 | mm | U |
| Flange width | bf | 133.0 | mm | U |
| Flange thickness | tf | 7.8 | mm | U |
| Web thickness | tw | 5.8 | mm | U |
| Root radius | r1 | 8.9 | mm | U |
Section Properties
| Parameter | Symbol | Value | Unit | Data |
|---|---|---|---|---|
| General | ||||
| Mass per metre | mass | 25.35 | kg/m | C |
| Gross area | A | 3,230 | mm² | C |
| About x-axis (major) | ||||
| Second moment of area Ix | Ix | 23.529 | 10⁶ mm⁴ | C |
| Elastic section modulus Zx (min) | Zx | 231.8 | 10³ mm³ | C |
| Plastic section modulus Sx | Sx | 259.7 | 10³ mm³ | C |
| Radius of gyration rx | rx | 85.4 | mm | C |
| About y-axis (minor) | ||||
| Second moment of area Iy | Iy | 3.063 | 10⁶ mm⁴ | C |
| Elastic section modulus Zy (min) | Zy | 46.1 | 10³ mm³ | C |
| Plastic section modulus Sy | Sy | 70.9 | 10³ mm³ | C |
| Radius of gyration ry | ry | 30.8 | mm | C |
| Torsion & warping | ||||
| Torsion constant JApproximate thin-walled value, fillets neglected | J | 0.054 | 10⁶ mm⁴ | C |
| Warping constant IwIy·(d−tf)²/4 | Iw | 29.18 | 10⁹ mm⁶ | C |
| Surface area | ||||
| External surface area | extArea | 0.911 | m²/m | C |
Nominal designation mass 25.40 kg/m; calculated 25.35 kg/m (-0.2%).
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 = 7.8 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.