Atlas index
Profiles · 0.42–0.6 mm
Metallic — indicative fig. M·83

Premium Australian coated steel sheets with aluminium/zinc/magnesium alloy coating and optional paint system, engineered for 50+ year service life in harsh Australian conditions

01 Physical

Density 7850kg/m³
Specific gravity 7.85dimensionless
Porosity 0%
Water absorption 0%
Hardness 130HV
UV resistance Excellent
Chemical resistance Good
pH tolerance 4 – 9pH
Surface roughness 1μm Ra

02 Mechanical

Tensile strength 520 – 620MPa
Compressive strength 550MPa
Flexural strength 550MPa
Shear strength 330MPa
Poisson's ratio 0.3dimensionless
Impact resistance Good
Creep resistance Excellent

03 Thermal

Thermal conductivity 45W/m·K
Specific heat 460J/kg·K
Thermal expansion 11.7×10⁻⁶/°C

04 Compliance & Fire First question

Combustibility class Non-combustible per AS 1530.1
Fire resistance level Non-combustible
Ignition temp 500°C
Flame spread index 0dimensionless
Smoke dev. index 0dimensionless
Heat release rate 0kW/m²

05 Sustainability & Health

Embodied carbon 14.1kg CO2-eq/m²
Carbon footprint 12.8kg CO2-eq/m²
Embodied energy 148MJ/m²
Water footprint 40.7L/m²
Recyclability 100%
Recycled content 25%
Renewable content 0%
Circular score 85%
VOC emissions 0g/L
Toxicity rating Non-toxic
LEED contribution 2 – 4

06 Durability · Cost · Logistics

Expected lifespan 50 – 100years
Maintenance interval 6months
Material cost (range) 18 – 40$/m²
Material cost (per unit) 30$/m²
Lead time 1 – 14days
Lifecycle cost 2.5$/m²/year
Annual maintenance 0.5$/m²/year
Market availability Excellent - stocked nationally

07 Assessment

Advantages

  • 50+ year proven Australian performance
  • Non-combustible, BAL-FZ compliant
  • Lightweight (3.3-4.7 kg/m²)
  • 100% recyclable
  • 36-year warranty available
  • 22 standard colours plus specialty finishes
  • Thermatech® solar reflectance technology
  • Activate® corrosion resistance technology
  • Termite and rot proof
  • Low thermal mass for improved comfort

Constraints

  • Higher initial cost than some alternatives
  • Can dent under impact
  • Requires compatible fasteners and flashings
  • Thermal expansion requires proper detailing
  • Cut edges need protection in severe environments
  • Regular washing required in sheltered areas
  • Can be noisy in rain without insulation

08 Applications

A1 Residential roofing (all profiles)
A2 Commercial/industrial roofing and walling
A3 Architectural cladding systems
A4 Rainwater goods (gutters, downpipes)
A5 Fencing and screening
A6 Garage doors and roller shutters
A7 Insulated panel systems
A8 Bushfire-rated construction (BAL-FZ)
A9 Coastal and marine environments
A10 Cold storage facilities

09 Sources & Standards

Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.

MATERIALS ATLAS · CL·AD M·83 · data indicative — verify per project