150UB58 AS/NZS 3679.1 Grade 300 — Australian Universal Beam Section Properties

150UB58 is an Australian UB (Universal Beam) per AS/NZS 3679.1 hot-rolled structural steel section. Standard Australian UB dimensions. Verify against Liberty OneSteel / InfraBuild section catalog.

Dimensions (Metric)

Property Value Unit
Depth (d) 150 mm
Flange Width (bf) 120 mm
Flange Thickness (tf) 17.5 mm
Web Thickness (tw) 8.0 mm
Cross-Sectional Area (A) 51.2 cm²
Mass 58.0 kg/m

Elastic Section Properties (Metric)

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 1,956 504 cm⁴
Elastic Section Modulus (S) 261 84 cm³
Plastic Section Modulus (Z) 305 128 cm³
Radius of Gyration (r) 6.18 3.14 cm

Torsional Properties

Property Value Unit
Torsional Constant (J) 45 cm⁴
Distance Between Flange Centroids (ho) 13.25 cm

Design Resources

Frequently Asked Questions

What is the 150UB58 section depth? The 150UB58 has a nominal depth of 150mm and a flange width of 120mm. The UB is part of the 150mm depth series.

What steel grade is standard for 150UB58? 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 150UB58 beam? 58.0 kg/m. A 12m length weighs approximately 696 kg.

What is the section modulus of 150UB58? Sx = 261 cm³ (strong axis) and Sy = 84 cm³ (weak axis). The plastic section modulus Zx = 305 cm³.

Related Pages


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.