Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of g350 aluzinc coated az60 galvalume steel coils in China. Welcome to wholesale customized g350 aluzinc coated az60 galvalume steel coils at low price from our factory. If you have any enquiry about free sample and cheap products, please feel free to email us.
Products Description
G350 AZ60 Galvalume Steel Coil is a premium high-strength coated steel product, engineered with a 55% Al-43.4% Zn-1.6% Si alloy coating (AZ60: 60g/m² double-sided coating) on G350-grade high-strength cold-rolled steel substrate. It delivers an optimal balance of high yield strength (350MPa), superior corrosion resistance, excellent heat reflectivity and processability-an upgraded alternative to conventional galvanized steel for demanding industrial and construction applications.
Galvalume Steel Coil
Key Specifications
| Parameter | Details |
|---|---|
| Grade | G350 (High-strength structural steel) |
| Coating | AZ60 (60g/m², 55% Al+43.4% Zn+1.6% Si) |
| Thickness | 0.13–2.0mm (customizable) |
| Width | 600–1500mm (standard: 1000/1200/1500mm) |
| Coil ID | 508mm / 610mm |
| Surface Finish | Passivated, oiled, fingerprint-resistant (optional) |
| Standard | AS1397, ASTM A792, EN 10346 |
Core Advantages
High Strength & Structural Stability
G350 grade offers a minimum yield strength of 350MPa, significantly higher than common DX51D galvalume coils. It reduces structural weight while maintaining rigidity, ideal for load-bearing components in construction and machinery.
3–6× Longer Corrosion Resistance Than Galvanized Steel
- Barrier Protection: Aluminum forms a dense Al₂O₃ film to block moisture/oxygen.
- Sacrificial Protection: Zinc cathodically protects scratched areas (self-healing effect).
- AZ60 coating withstands 800+ hours of salt spray (ASTM B117), perfect for coastal/industrial corrosive environments.
Excellent Heat Resistance & Reflectivity
Resists discoloration at 315°C long-term (vs. 200°C for galvanized steel). Reflects 80%+ infrared rays, lowering building energy consumption for roofing/wall panels.
Superior Processability & Adhesion
Coating bonds tightly to the substrate, supporting bending, stamping, shearing without cracking. Compatible with painting/embossing for diverse surface finishes.
Aluzinc Coating
| Coating Code | Total Coating Weight | Total Coating Thickness | Approx. Single Side Thickness(μm) | Applicable Standards |
| (g/m², both sides) | (μm, theoretical) | |||
| AZ50 | 50 | 13.16 | 6.58 | GB/T 14978, EN 10346, ASTM A792 |
| AZ70 | 70 | 18.42 | 9.21 | GB/T 14978, EN 10346, ASTM A792 |
| AZ100 | 100 | 26.32 | 13.16 | GB/T 14978, EN 10346, ASTM A792 |
| AZ150 | 150 | 39.47 | 19.74 | GB/T 14978, EN 10346, ASTM A792 |
| AZ180 | 180 | 47.37 | 23.68 | GB/T 14978, EN 10346, ASTM A792 |
| AZ200 | 200 | 52.63 | 26.32 | GB/T 14978, EN 10346, ASTM |
Applications
Construction: Roofing, wall panels, purlins, warehouse/agricultural building structures.
Home Appliances: Refrigerator back panels, air conditioner casings, oven components.
Automotive: Exhaust parts, fuel tanks, chassis components (heat/corrosion-resistant).
Others: Solar panel frames, electrical cabinets, ventilation ducts.
FAQ
Q1: What does G350 AZ60 mean?
A: G350 = high-strength grade (350MPa yield strength);
AZ60 = 60g/m² double-sided Al-Zn coating.
Q2: How long is the service life compared to galvanized steel?
A: 3–6× longer in atmospheric environments; 10+ years in coastal areas with proper maintenance.
Q3: Can it be used for outdoor roofing?
A: Yes-excellent heat reflectivity and corrosion resistance make it ideal for residential/commercial roofing.
Q4: What certifications do you have?
A: ISO 9001, CE, RoHS; complies with AS1397, ASTM A792, EN 10346.
G350 AZ60 Galvalume Steel Coil is your cost-effective, high-performance solution for corrosion-resistant and high-strength applications. Contact us today to discuss your requirements, get a free sample, or receive a detailed quotation!
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