MATERIAL DATA SHEET

Galvanised Steel Sheet (0.55mm, 0.75mm, 0.95mm, 1.15mm, 1.55mm, 1.95mm, 3.00mm)

Ferrous Sheet
mineral › Metallic › Ferrous Sheet
mineralmetallicgalvanisedsteelnon-combustibleBAL-FZAS1397recyclablestructuralcorrosion-resistant
ATLAS CODE
MIN-MET-FSH-003
Galvanised Steel Sheet (0.55mm, 0.75mm, 0.95mm, 1.15mm, 1.55mm, 1.95mm, 3.00mm)
Category mineral
Material Family Metallic
Regulatory Status non-combustible
Density
7850 kg/m³
Carbon (A1-A5)
2.2 kgCO₂e
Fire Class
non-combustible
Lifespan
50 yrs
Description

Galvanised steel sheet is manufactured from mild steel substrate with a protective zinc coating applied through continuous hot-dip galvanisation process. The zinc coating acts as a sacrificial anode, providing cathodic protection to the steel base. Available in various coating masses (Z275-Z600) designated by total coating weight in g/m². The material demonstrates excellent formability, weldability, and long-term durability in Australian conditions including marine, tropical, and bushfire-prone environments.

Primary Sectors
[Transport & Infrastructure][Industrial]
Typical Uses
  • Roofing and wall cladding systems
  • Bushfire-resistant construction (BAL-12.5 to BAL-FZ)
  • Marine and coastal structures
  • Agricultural buildings and infrastructure
  • HVAC ducting and ventilation systems
  • Automotive body panels
  • Electrical enclosures and switchboards
  • Rainwater goods and plumbing fixtures
  • Structural decking and formwork
  • Industrial storage systems
Recycled Content 25
Renewable Content 0
Recyclability 100
Embodied Carbon 2.2 kgCO₂e
Embodied Energy 25 MJ/kg
EPD Available Yes
Advantages
Non-combustible with Spread of Flame Index of 0Excellent corrosion resistance via sacrificial zinc protectionSuitable for all BAL zones including BAL-FZ90% recycling rate in AustraliaNo maintenance required for 15-25 years in most environmentsSelf-healing properties through zinc migrationReadily available from Australian manufacturersCost-effective life cycle performanceCompatible with standard metalworking toolsMagnetic properties enable easy separation for recycling
Cautions
Zinc fumes toxic when heated above 250°C during weldingLimited aesthetic options compared to pre-painted steelWhite rust formation possible in poor storage conditionsIncompatible with copper and lead (galvanic corrosion)Weight penalty compared to aluminium alternativesThermal bridging in uninsulated applicationsCut edges require protection in severe environmentsAcoustic transmission requires additional treatmentEmbodied carbon of 1.4-2.2 kg CO₂/kg steel
CLAD MATERIALS ATLAS PAGE 1 OF 4
TECHNICAL DATA: PERFORMANCE PROPERTIES MIN-MET-FSH-003
Density (Dry) 7850 kg/m³
Specific Gravity 7.85
Porosity 0 %
Water Absorption 0 %
Hardness 120
Surface Roughness 1.5 μm
UV Resistance excellent
Chemical Resistance good
pH Tolerance 6-12
Compressive Strength 250 MPa
Tensile Strength 410 MPa
Flexural Strength 450 MPa
Shear Strength 260 MPa
Elastic Modulus 200000 GPa
Yield Strength 250 MPa
Impact Resistance moderate J/m
Bearing Capacity 350 kN/m²
Poisson's Ratio 0.3
Creep Resistance excellent
Abrasion Resistance good
Thermal Conductivity 50 W/mK
Thermal Resistance 0.02 m²K/W
Specific Heat Capacity 490 J/kgK
Thermal Expansion 12 μm/m·K
Melting Point 419 °C
Sound Transmission Class (STC) 26
Noise Reduction Coeff. (NRC) 0.05
Optical
Light Transmittance 0 %
Light Reflectance (LRV) 65 %
Solar Reflectance (SRI) 30

Galvanisation invented by Stanislas Sorel in 1837, with the first Australian galvanising plant established in 1850s. Continuous hot-dip process developed by Sendzimir in 1930s revolutionised production. Australian standard AS 1397 first published in 1973, continuously updated with latest version 2021. Local production dominated by BlueScope Steel (formerly BHP Steel) since 1915, with modern continuous galvanising lines at Port Kembla, Western Port, and Springhill. Material has been fundamental to Australian construction, particularly in coastal and rural applications where corrosion resistance is critical. Evolution includes development of Zincalume® (55% Al-Zn) in 1970s and various pre-painted systems for enhanced aesthetics and performance.

CLAD MATERIALS ATLAS PAGE 2 OF 4
SAFETY, ECOLOGY & INSTALLATION MIN-MET-FSH-003
Flame Spread Index 0
Smoke Developed Index 2
Combustibility Class non-combustible
Fire Resistance Rating non-combustible hours
Heat Release Rate 0 kW/m²
Toxicity of Combustion zinc-oxide-fumes
Embodied Carbon (A1-A3) 2.2 kgCO₂e/kg
Embodied Energy 25 MJ/kg
Water Footprint 45 L/kg
EPD Available Yes
Recycled Content 25%
Renewable Content 0%
LEED Points 2
Circular Economy Score 8.5 /100
VOC Emissions 0 g/L
Skill Level intermediate
Crew Size 2
Installation Time 8 hr/m²
Curing Time 0 hours
Setting Time 0 min
Temperature Range -10 to 40 °C
Humidity Range 0-100 %
Required Tools
Tin snips or guillotinePower nibbler for curvesDrill with HSS bitsPop rivet gunSeaming toolsSafety equipment (gloves, eye protection)
Certifications Required
White Card (construction induction)Working at Heights (for roofing)Trade qualification (preferred)
Weather Limitations
Avoid installation in winds >30km/hSlippery when wet - safety hazardThermal expansion consideration in extreme temperatures
CLAD MATERIALS ATLAS PAGE 3 OF 4
COMMERCIAL, LOGISTICS & REGULATORY MIN-MET-FSH-003
Material Cost 45-85
Installation Cost 35-55
Annual Maintenance 0
Lifecycle Cost (50yr) 120
Market Availability excellent
Lead Time 1-5 weeks
Design Life 50 years
Warranty Period 15 years
Maintenance Interval 15 months
Service Temp Range -40 to 200 °C
Freeze/Thaw Resistance excellent
Dimensional Stability excellent
Certifications Held
AS 1397:2021 - Primary Australian standardAS/NZS 1365:1996 - TolerancesAS/NZS 4600 - Cold-formed steel structuresEnvironmental Product Declaration (EPD) availableGreen Star compliant materialGECA certified products availableLead-free coating options availableREACH compliant for exportSafe for rainwater collection (AS/NZS 4020)
Fire Code Compliance
AS 1530.1 - Non-combustible materialsAS 1530.3 - Fire hazard propertiesAS 3959:2018 - Bushfire construction
Standards Compliance
NCC 2022 Volume One & TwoDeemed-to-Satisfy provisionsPerformance Requirements CP1-CP9ASTM A653 - Specification for steel sheet, zinc-coatedASTM A924 - General requirements for steel sheetASTM E90 - Airborne sound transmissionISO 3575 - Hot-dip zinc-coated sheetISO 14713 - Zinc coatings guidelinesISO 9223 - Corrosion of metalsEN 10346 - Hot dip zinc coated steelEN 10143 - Tolerances on dimensionsEN 15804 - Environmental product declarations

DISCLAIMER: This specification document is generated from the CLAD Materials Atlas Database. Information is for general guidance only and does not constitute professional engineering advice. Values are typical and may vary by batch, manufacturer, and production run. Verify suitability for specific project applications independently.

ID: MIN-MET-FSH-003 Schema: v3.0
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