Aluminum-Zinc Alloy Coated Steel
A high-performance coated steel with 55% aluminum-zinc alloy coating, offering superior corrosion resistance, excellent heat resistance, and long-lasting durability. Widely used for roofing, wall panels, appliances, and automotive components. Thickness: 0.12-3.0mm, width: 600-1500mm, AZ30-AZ200 coating weight. CE & ISO certified. Factory direct with export standard packaging.
- Email：admin@zhongtangsteel.cn
- WhatsApp：+86 15864006163
Description
I. Product Overview
| Structural Layer | Material Description |
|---|---|
| Surface Coating (Optional) | Pre-painted coating (PPGL) or anti-fingerprint treatment |
| Chemical Passivation Layer | Chromium-free or chromium-containing passivation for enhanced corrosion resistance |
| Galvalume Layer | 55% Al – 43.4% Zn – 1.6% Si alloy coating |
| Base Metal | Cold-rolled steel (DX51D, DX52D, S250GD+Z, etc.) |
III. Specification Parameters
| Item | Specification Range |
|---|---|
| Thickness | 0.12 mm – 3.0 mm |
| Width | 600 mm – 1500 mm (customizable up to 1800 mm) |
| Coil Weight | 3 – 15 tons per coil |
| Coating Type | 55% Al-Zn alloy |
| Coating Weight | AZ30 – AZ200 (30–200 g/m², double-sided) |
| Base Steel Grades | DX51D, DX52D, DX53D, S250GD – S550GD |
| Surface Treatment | Passivation, anti-fingerprint, oiled, non-oiled |
| Surface Finish | Regular bright surface, zero spangle, mini spangle |
| Product Form | Coil, flat sheet (cut-to-length) |
IV. Customization Services
- Dimension customization: Slitting, cut-to-length and fixed-length cutting as requested
- Coating weight: Any coating weight from AZ30 to AZ200
- Surface treatment: Passivation, anti-fingerprint, oiled, non-oiled
- Pre-painted processing: Can be processed into pre-painted galvalume steel (PPGL), with RAL color card customization available
- Steel grade selection: Both commercial grades (DX series) and structural grades (S series) are available
V. Packaging & Transportation
- Inner layer: Waterproof paper / VCI anti-rust film
- Middle layer: Galvanized steel sheet wrapped circumferentially
- Outer layer: Steel strips for longitudinal and circumferential strapping reinforcement
- Bottom: Fumigated wooden pallets for convenient forklift handling
Trade Terms
FOB (Tianjin / Qingdao and other ports)
CIF / CFR / EXW
Payment Terms
T/T (Telegraphic Transfer)
L/C (Letter of Credit)
- Regular products: 7–15 days
- Customized products: 20–45 days
VI. Why Choose Us
✅ Advanced production line: Continuous hot-dip galvalume production line ensuring uniform and stable coating
✅ Strict quality control: Full-process quality inspection, with material certificates and test reports provided
✅ Customized services: Customizable specifications, coating weights and surface treatments as requested
✅ Professional export experience: Familiar with export procedures, packaging compliant with international ocean shipping standards
✅ Fast response: Quotation provided within 24 hours, 7×24 hours online service
✅ Competitive price: Direct sales from manufacturer with no middlemen
VII. FAQ
| Question | Answer |
|---|---|
| What is the minimum order quantity? | 25 tons for regular products, negotiable |
| Can samples be provided? | Free samples are available; customers shall bear international courier fees |
| Are material certificates provided? | Yes, factory material certificates and inspection reports are provided for each batch |
| Can it be processed into flat sheets? | Yes, fixed-length cut-to-length service is available |
| Is third-party inspection supported? | Yes, third-party inspections by SGS, BV and other institutions are supported |
