G550 AZ70 PPGI PPGL Steel Coil for Roofing Panels with 30–275g/m² Coating and PE

Product Specification

G550 AZ70 PPGI PPGL Steel Coil for Roofing Panels with 30–275g/m² Coating and PE Painted Surface

１．Product Overview

G550 AZ70 PPGI PPGL Steel Coil is a high-strength color coated steel product designed for roofing panels, wall cladding systems, industrial buildings, and fabricated metal components.

Manufactured from galvanized or galvalume steel substrates, the product combines structural strength, corrosion resistance, and decorative appearance. G550 grade steel provides higher strength for long-span roofing and lightweight construction applications while maintaining good forming performance.

２．Technical Solution

The steel substrate is protected by a metallic coating ranging from 30–275g/m². The coating system is further enhanced by primer and top paint layers that improve weather resistance, appearance retention, and corrosion protection.

Top paint thickness ranges from 15–35μm while back paint thickness ranges from 5–35μm. Available paint systems include PE, SMP, HDP, PVDF, and PU, allowing selection according to project durability requirements.

Surface treatments such as chromating, oiling, and skin pass processing improve storage performance and fabrication quality.

３．Specifications

４．Application

• Steel structure workshop roofing
• Warehouse roofing systems
• Airport building roofing
• Industrial wall panels
• Commercial building cladding
• Vehicle manufacturing
• Shipbuilding components
• Furniture manufacturing
• Electrical equipment housings
• Industrial fabrication projects

５．Processing

• Roll forming
• Roof panel production
• Wall panel fabrication
• Cut-to-length processing
• Slitting
• Bending
• Profiling
• Structural component manufacturing

６．Advantages

• G550 grade provides high strength for roofing and structural applications.
• 30–275g/m² coating improves corrosion resistance and service life.
• Multiple paint systems support different environmental conditions.
• RAL color options support architectural design flexibility.
• 600–1500mm width range accommodates various panel profiles.
• Available hardness options support different forming requirements.
• Various surface treatments improve fabrication and storage performance.

７．How to Choose

• Choose G550 grade when higher structural strength is required.
• Select PVDF coating for projects requiring superior weatherability and UV resistance.
• Choose SMP or HDP coatings for enhanced outdoor durability.
• Confirm metallic coating level according to environmental exposure conditions.
• Verify hardness requirements according to forming and roll-forming operations.
• Confirm width and thickness according to roofing profile design.

８．FAQ

Q1．What is the primary application of this product?

It is widely used for roofing panels, wall cladding, industrial buildings, and structural fabrication.

Q2．What paint systems are available?

Available paint systems include PVDF, HDP, SMP, PE, and PU.

Q3．What thickness range is available?

The available thickness range is 0.125–2.0mm.

Q4．What is the zinc coating range?

The metallic coating range is 30–275g/m².

Q5．What color options are available?

Colors can be supplied according to the RAL Color System.