G550+AZ70 Galvalume Steel Coil

Galvalume Steel Coil · G550+AZ70 High-Strength Grade · 70 g/m² 55% Al-Zn Coating · AZ Coated · Custom Width / Slitting Available

Product Summary

G550+AZ70 Galvalume Steel Coil is a high-strength 55% aluminum-zinc alloy-coated steel coil on a G550 structural substrate, with a nominal coating mass of 70 g/m² (AZ70). The G550 grade provides high yield strength for load-bearing profiles, while the AZ70 coating offers standard corrosion protection.

This grade is supplied for structural roof and wall profiles, purlins and high-strength building components.

Differentiator: G550 high-strength substrate + AZ70 aluminum-zinc coating mass.

Supply capability: Order-based Supply — Available upon request / Custom supply. This listing is presented per the Order-based Supply classification; it is not packaged as standard in-stock material.

Key Specifications

Key Features

• G550 substrate — high-strength structural substrate for load-bearing profiles.
• AZ70 coating — 70 g/m² nominal 55% Al-Zn coating for standard corrosion resistance.
• Aluminum-zinc alloy — combines corrosion resistance with sacrificial zinc protection.
• Flexible width and surface — supplied to your downstream processing requirements.
• Traceable material — mill test certificates available according to order requirements.

Applications

• Structural roof and wall profiles
• Purlins and framing
• High-strength roll-formed sections
• Building envelope structural components
• Load-bearing profiles

Why Choose Kyzotech

• Flexible grade and mill matching — matched to your end use and target cost.
• Traceable raw materials — coils sourced from qualified mills, with mill certificates available according to order requirements.
• Downstream processing support — slitting, cut-to-length and processing coordinated with the downstream product.
• Export-oriented packing — seaworthy packaging designed to reduce surface and edge damage during ocean transport.

Quality Control

• Incoming raw material inspection
• Coating mass and adhesion verification
• Dimensional and surface verification
• Third-party inspection available on request

Packaging & Delivery

Seaworthy export packing to protect surfaces and edges during ocean transport. Lead time is confirmed according to product specification, quantity, production schedule and destination. Delivery is arranged after commercial confirmation, depending on order quantity and mill arrangements. Shipment can be arranged from Shanghai, Tianjin, Qingdao or Weifang.

About Kyzotech

Kyzotech is the export brand of Nanjing Shunshuo New Material Technology Co., Ltd. — a manufacturer of steel structure building materials and enclosure systems, established in 2016.

Kyzotech is our export brand; our website and email are hosted at metalroofsystems.com.

FAQ

Q1: Is this supplied as a standard stock item? This specification is supplied on an order-based supply basis — Available upon request / Custom supply. It is not presented as standard in-stock material.

Q2: What grade and coating does this cover? This listing covers G550 substrate with AZ70 aluminum-zinc coating mass; other substrates and coating masses are supplied on request.

Q3: What documentation do you provide? Mill test certificates, coating reports, packing list and shipment documents. Third-party inspection can be arranged on request.

Q4: What is your MOQ and lead time? MOQ and lead time are confirmed per grade and specification; confirmed according to product specification, quantity, production schedule and destination.

Request a Quote

Send us your substrate grade, coating mass, thickness, width, quantity and destination port.

📧 mason@metalroofsystems.com · 📞 [phone] · 🌐 metalroofsystems.com

© 2026 Nanjing Shunshuo New Material Technology Co., Ltd. All rights reserved. Kyzotech is a registered export brand of Nanjing Shunshuo New Material Technology Co., Ltd..