Zinc Aluminum Cold Rolled Coil

Core product matrix and features

We provide a full range of solutions for coated metal sheets certified by global standards, covering cold-rolled substrates, hot-dip galvanized (GI), galvanized aluminum (Galvalume), zinc aluminum magnesium (ZAM) and high-strength roof panels, meeting the diversified needs from infrastructure to high-end manufacturing:

1. Hot-dip galvanized steel coil (GI/SGCC)

Material standards: DX51D+Z80-Z275 (EN 10346), SGCC (JIS G3302)

Coating advantages: zinc layer weight 60-275g/m², salt spray corrosion resistance ≥500 hours (Z275), suitable for general anti-corrosion scenarios.

Typical applications: storage shelves, ventilation ducts, agricultural equipment housings.

2. Galvalume steel coil (AZ150/Galvalume)

Material standards: ASTM A792 AZ150, AS1397 G550

Coating characteristics: 55% aluminum-zinc alloy coating, heat resistance up to 315℃, corrosion resistance 3-6 times that of ordinary galvanizing, and service life of more than 25 years.

Typical applications: industrial plant roofs, color-coated substrates, and automobile exhaust pipes.

3. Zinc-aluminum-magnesium alloy steel coil (ZAM275)

Technological breakthrough: Zn-Al-Mg coating (magnesium content 1.5%-3%), significant self-healing properties, and red rust resistance time of more than 2000 hours.

Implementation standards: JIS G3321 ZAM275, Q/BQB 440-2018

Typical applications: photovoltaic brackets, coastal building enclosures, and cold chain logistics equipment.

4. High-strength roof panels (G550/G350)

Mechanical properties: yield strength 350-550MPa, thickness 0.4-1.2mm, lightweight and wind-resistant (in compliance with AS/NZS 2728).

Surface treatment: PE/PVDF coating can be customized to support decorative effects such as imitation stone grain and wood grain.

Four core competitive advantages

✅ Full product category coverage

From cold-rolled substrates (DC01-DC06) to finished coated products (GI/AZ/ZAM), thickness 0.15-3.0mm, width 600-1500mm, support striping, shearing, and lamination processing.

✅ Strict quality control system

Coating uniformity detection (XRF thickness gauge accuracy ±1μm)

Mechanical properties test (universal testing machine + digital imaging system)

Provide SGS/BV certified 3.1 material report

✅ Fast delivery capability

Standing inventory of 20,000 tons, supporting small batch trial orders (minimum order of 1 ton)

Five major domestic storage centers, 72-hour express delivery

✅ Scenario-based technology empowerment

Free of charge:

Coating selection guide (matching coating types according to corrosion environment)

Processing technology optimization plan (reducing stamping cracking rate)

Full life cycle cost calculation model

Industry solutions and cases

Technical parameter comparison table