250PFC AS/NZS 3679.1 Grade 300 — Australian Parallel Flange Channel Section Properties
250PFC is an Australian PFC (Parallel Flange Channel) per AS/NZS 3679.1 hot-rolled structural steel section. Standard Australian PFC dimensions. Verify against Liberty OneSteel / InfraBuild section catalog.
Dimensions (Metric)
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 250 | mm |
| Flange Width (bf) | 80 | mm |
| Flange Thickness (tf) | 12.0 | mm |
| Web Thickness (tw) | 7.0 | mm |
| Cross-Sectional Area (A) | 35.0 | cm² |
| Mass | 35.0 | kg/m |
Elastic Section Properties (Metric)
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 3,395 | 103 | cm⁴ |
| Elastic Section Modulus (S) | 272 | 26 | cm³ |
| Plastic Section Modulus (Z) | 318 | 41 | cm³ |
| Radius of Gyration (r) | 9.85 | 1.72 | cm |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 12 | cm⁴ |
| Distance Between Flange Centroids (ho) | 23.80 | cm |
Design Resources
- Australian Steel Design Guide — AS 4100 overview
- Australian Steel Beam Sizes — Full UB/UC dimension table
- AS/NZS 3679.1 Steel Grades — Grade 300, 350, 400 properties
- Beam Capacity Calculator — Check 250PFC for your loads
- Column Capacity Calculator — Check 250PFC as a column
- Section Properties Database — Compare with other sections
Frequently Asked Questions
What is the 250PFC section depth? The 250PFC has a nominal depth of 250mm and a flange width of 80mm. The PFC is part of the 250mm depth series.
What steel grade is standard for 250PFC? Typically AS/NZS 3679.1 Grade 300 per AS/NZS 3679.1. Also available as Grade 300PLUS, Grade 350, Grade 400. Verify grade requirements with project specifications.
What is the mass of a 250PFC beam? 35.0 kg/m. A 12m length weighs approximately 420 kg.
What is the section modulus of 250PFC? Sx = 272 cm³ (strong axis) and Sy = 26 cm³ (weak axis). The plastic section modulus Zx = 318 cm³.
Related Pages
- Australian Steel Beam Sizes Reference
- AS 4100 Steel Design Guide
- Australian Steel Grades
- Beam Capacity Calculator
- Column Capacity Calculator
Educational reference only. Verify all section properties against the current Liberty OneSteel / InfraBuild section catalog and AS/NZS 3679.1 before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.