１．Product Overview

FULL HARD SGCC AS 1397 G550 galvanized corrugated roof sheets are designed for roofing and wall cladding systems requiring high strength, corrosion resistance, and long-term outdoor durability. The corrugated profile improves structural rigidity while reducing overall material weight, making the sheets suitable for industrial buildings, warehouses, prefabricated houses, commercial facilities, and agricultural projects.

Manufactured according to JIS G3302, ASTM A653, and AS 1397 standards, the sheets are available in FULL HARD SGCH, SGCC, and G550 grades with zinc coating from 40g/m² to 275g/m². The product combines weather resistance, dimensional stability, and easy installation performance for roofing and cladding systems.

２．Technical Solution

The corrugated roofing sheets are produced from hot dipped galvanized steel coils through roll forming processing. The corrugated wave structure increases bending strength and load-bearing capability while maintaining lightweight characteristics.

FULL HARD SGCH and G550 grades provide higher hardness and structural rigidity, making the sheets suitable for long-span roofing applications. The galvanized zinc coating forms a protective barrier against moisture and atmospheric corrosion, improving service life under outdoor exposure conditions.

The standardized 76mm wave width and 17mm-17.5mm wave height provide stable overlap performance and efficient rainwater drainage for roofing systems.

３．Specifications

４．Application

The galvanized corrugated roofing sheets are widely used in industrial plants, steel structure buildings, warehouses, logistics centers, stadiums, airport terminals, train stations, workshops, supermarkets, agricultural buildings, and prefabricated housing systems.

The sheets are suitable for both roofing and wall cladding applications where lightweight structure, corrosion resistance, and fast installation are required.

５．Processing

The product is manufactured through hot dipped galvanizing and precision corrugation forming processes. Standard export seaworthy packing is used to reduce transportation damage and moisture exposure during shipment.

Sheets can be supplied in customized lengths and widths according to project requirements to reduce installation waste and improve construction efficiency.

６．Advantage

• High strength FULL HARD SGCH and G550 material 
• Excellent corrosion resistance with 40-275g/m² zinc coating 
• Lightweight structure for easier transportation and installation 
• Stable corrugated profile with improved rigidity 
• Suitable for roofing and wall cladding systems 
• Compatible with industrial and commercial steel structures 
• Multiple width and length options available 
• Fast installation and low maintenance requirements 

７．How to Choose

Select SGCH FULL HARD or G550 material when higher structural strength and roofing rigidity are required.

Choose zinc coating according to project environment:

• 40-100g/m² for indoor or low corrosion environments
• 120-180g/m² for general outdoor construction
• 200-275g/m² for coastal or high humidity environments

Confirm effective width and sheet length according to roofing overlap design and installation requirements.

For long-span roofing systems, thicker sheets with higher hardness grades are recommended to improve structural stability.

８．FAQ

Q1: What is the difference between SGCC and SGCH FULL HARD?
SGCH FULL HARD has higher hardness and rigidity compared with standard SGCC, making it more suitable for roofing applications requiring higher structural strength.

Q2: What zinc coating range is available?
The product is available with zinc coating from 40g/m² to 275g/m².

Q3: Can customized sheet lengths be supplied?
Yes. Lengths from 1500mm to 3800mm or customized sizes can be produced according to project requirements.

Q4: Is the product suitable for wall cladding applications?
Yes. The corrugated sheets are suitable for both roofing and wall cladding systems.

Q5: What standards does the product comply with?
The product can be supplied according to ASTM A653, JIS G3302, and AS 1397 standards.