Galvalume Steel Coil
Grades: DX51D+AZ, S350GD+AZ. Coating: AZ50-AZ200. Thickness: 0.12-4.0mm. Widely used in construction, appliances, and automotive industries. Factory direct supply. Contact us today!
1. How to get samples to check the quality? How long can I get the samples?
After the price is confirmed, samples can be provided for your evaluation. After confirming the sample details, the samples will be ready for delivery within 3-7 days, and sent to you by courier, and arrive within 3-5 days.
2.Do you provide samples ? is it free or extra ?
Answer:The sample could can provide for customer with free,but the courier freight will be covered by customer account.
3. Do you accept the third party inspection?
Answer: Yes absolutely we accept.
4.Can you accept customization?
Answer:Yes. If you have special requirements on products or packages, we can do customization for you.
5.How do you control the quality?
Answer:We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.
Description
Galvalume Steel Coil Product Information
| Item | Content Example |
|---|---|
| Product Name | Continuous Hot-Dip Galvalume Steel Strip/Coil |
| Standard | GB/T 14978-202X ( China) / JIS G 3321 ( Japan) / ASTM A792 ( USA) |
| Grade | DX51D+AZ ( General Use), S350GD+AZ ( Structural Use) |
| Size | Thickness: 0.5mm – 3.0mm; Width: 1000mm / 1219mm / 1250mm |
| Coating Designation | AZ150 (Coating weight both sides: 150g/m²), AZ120, AZ100 |
| Surface Treatment | Chromate Passivation (C),Oiling (O),Untreated (U), Anti-fingerprint |
Galvalume Steel Coil, commonly referred to as Aluminum-Zinc Alloy Coated Steel Coil, is manufactured by applying an alloy coating consisting of 55% aluminum, 43.4% zinc, and 1.6% silicon onto a cold-rolled steel substrate. This material combines the high corrosion resistance and heat resistance of aluminum with the cut-edge protection of zinc, forming a composite coating structure that offers both physical barrier protection and electrochemical sacrificial protection.
Key Advantages:
Aluminum’s role: Forms a dense aluminum oxide barrier layer on the surface, effectively isolating corrosive media
Zinc’s role: Provides sacrificial anode protection at cut edges and scratches, preventing red rust propagation
Silicon’s role: Inhibits excessive growth of the alloy layer, ensuring coating adhesion
