Equal Angles, Grade 300, various sizes (Specified by size designation)
Hot-rolled structural steel equal angle sections with minimum 300 MPa yield strength, manufactured to AS/NZS 3679.1:2016. L-shaped profiles for structural framing, bracing, and connections in Australian construction.
Hot-rolled structural steel equal angle sections with minimum 300 MPa yield strength, manufactured to AS/NZS 3679.1:2016. L-shaped profiles for structural framing, bracing, and connections in Australian construction.
Equal angle sections are hot-rolled structural steel profiles with two equal length legs forming a 90-degree angle. Grade 300 designation indicates minimum yield strength of 300 MPa. Manufactured in Australia primarily by InfraBuild (300PLUS brand) and BlueScope Steel, with actual yield typically 320-340 MPa. Available in sizes from 20x20x3mm to 200x200x26mm with standard lengths of 6-18m. Features excellent weldability (CE<0.41), consistent mechanical properties, and established design standards through AS 4100:2020.
- High strength-to-weight ratio enables efficient structural design
- 98% recyclable with established recycling infrastructure
- Non-combustible material suitable for all BAL ratings
- Excellent weldability without preheating for sections <25mm
- Consistent mechanical properties with ACRS certification
- Available from stock in standard sizes across Australia
- 50+ year service life with appropriate protection
- Compatible with all standard connection methods
- Design covered by mature standards (AS 4100:2020)
- Local production reduces transport emissions and lead times
- Ductile failure mode provides warning before collapse
- Dimensionally stable with no moisture movement
- 01 High strength-to-weight ratio enables efficient structural design
- 02 98% recyclable with established recycling infrastructure
- 03 Non-combustible material suitable for all BAL ratings
- 04 Excellent weldability without preheating for sections <25mm
- 05 Consistent mechanical properties with ACRS certification
- 01 Requires fire protection for FRL ratings in buildings
- 02 Susceptible to corrosion without protective coatings
- 03 Thermal bridging requires consideration in building envelope
- 04 Skilled labour required for welding and installation
- 05 Subject to market price fluctuations
- Density
- 7850 kg/m³
- Specific gravity
- 7.85
- Porosity
- 0 %
- Water absorption
- 0 %
- Hardness
- 160
- UV resistance
- excellent // [Inorganic material]
- Chemical resistance
- moderate // [Requires protection in aggressive environments]
- pH tolerance
- 4-10
- Surface roughness
- 12.5 µm
- Tensile strength
- 440 MPa
- Compressive strength
- 440 MPa
- Flexural strength
- 300 MPa
- Shear strength
- 180 MPa
- Poisson's ratio
- 0.3
- Impact resistance
- 27
- Creep resistance
- excellent // [Negligible at normal temperatures]
- Embodied carbon
- 1850 kgCO2e/tonne Value in kgCO2e/tonne = 1.85 kgCO2e/kg. A1-A3 cradle-to-gate for equal angle sections.
- Carbon footprint
- 1.85
- Embodied energy
- 38.8 MJ/kg
- Water footprint
- 64 L/kg
- Recycled content
- 25 %
- Renewable content
- 0 %
- Circular score
- 9
- Combustibility class
- non-combustible // [AS 1530.1]
- Fire resistance level
- 0/0/0 // Unprotected [Requires fire protection for FRL]
- Flame spread index
- 0
- Smoke dev. index
- 0
- Heat release rate
- 0
- Material cost (range)
- $800-1200 // per tonne [2024 Australian market]
- Material cost (per unit)
- $35-65 // per metre depending on size
- Lead time
- 1-3 days // Ex-stock [Custom sections 5-7 days]
- Lifecycle cost
- $150-250 // per m² over 50 years
- Annual maintenance
- $5-15 // per m² for coating maintenance
- Market availability
- excellent // [Stock items readily available]
- Expected lifespan
- 100
- Maintenance interval
- 5
- Warranty period
- 10