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
1.Are you a manufacturer or just a trader?
We are a manufacturer. We can provide high quality products at competitive prices. Our company also has a trade department. Our company specialized in steel products more than 10 years, so we have established cooperative relationship with many steel enterprises. We can provide many types and specifications of steel products.
2.Could you supply samples?
Sure, samples can be provided free of charge, and buyers pay the freight of the sample.
3.How long does it take you to prepare the goods?
It takes seven to ten days for products under 25 tons, and within 15 days for products of 25-100 tons. Special specifications and large quantity of products will be discussed separately.
4. What is your delivery time?
The time of delivery is usually around 15-20 days. We can send out in 2 days, if it has stock.
5.What is your payment terms?
Our usual payment term is 30% deposit, and rest before delivery. L/C is also acceptable. EXW, FOB, CFR, CIF.
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 |
