Aluzinc Steel, also known as Galvalume, are carbon steel coated with 55% Aluminum, 43.5% Zinc, and 1.5% Silicon alloy using a continuous hot-dip process. This coating provides exceptional corrosion resistance, heat reflectivity, and durability, outperforming traditional galvanized steel in many environments.
Technical Specifications
- Standards : ASTM A792, JIS G 3321, EN 10346
- Grades Available : CS Type A/B, FS, DDS, SS Grades 33–80, DX51D+AZ, S350GD+AZ
- Thickness Range : 0.015″ – 0.135″
- Width Range : 24″ – 60″
- Coil Weight : Up to 50,000 lbs (customizable)
- Sheet Weight : Up to 10,000 lbs (customizable)
- Coating Weights : AZ50, AZ55, AZ150 (0.50 – 1.50 oz/ft² total both sides)
- Surface Finish : Regular Spangle, Minimized Spangle, Zero Spangle
- Edge Condition : Mill Edge / Slit Edge
Mechanical Properties (Typical Values)
| Grade | Yield Strength (ksi) | Tensile Strength (ksi) | Elongation (%) |
| CS Type A | ≥ 33 | ≥ 45 | ≥ 20 |
| FS Type B | ≥ 30 | ≥ 42 | ≥ 28 |
| SS Grade 50 | ≥ 50 | ≥ 65 | ≥ 20 |
| SS Grade 80 | ≥ 80 | ≥ 90 | ≥ 10 |
Applications
Roofing and siding, HVAC ducting, garage doors, framing, appliances, and agricultural buildings.
Optional Treatments
- Chromate or Non-Chromate Passivation, Oiling (Rust Prevention)
- Anti-fingerprint Coating, Skin Pass / Tension Leveling
- Custom Slitting & Cut-to-Length