0.15–3.8mm Z40–Z275 SGCC Hot Dipped Galvanized Steel Sheet JIS G3302 for Building and Industrial Applications

0.15–3.8mm Z40–Z275 SGCC Hot Dipped Galvanized Steel Sheet JIS G3302 for Building and Industrial Applications

1. Product Overview

Hot dipped galvanized steel sheet is produced by applying a zinc coating on cold rolled steel through a continuous hot-dip galvanizing process.

2. Technical Solution

Performance depends on:

• Zinc coating (40–275 g/m²)

• Coating continuity and adhesion

• Base steel formability (SGCC / DX51D)

3. Specifications

4. Application

• Roofing and cladding

• Structural components

• Appliance panels

• HVAC duct systems

• General industrial fabrication

5. Processing

• Cut-to-length

• Stamping and bending

• Welding and assembly

6. Advantages

• Coating range from Z40 to Z275

• Stable forming performance

• Multiple surface options

• Suitable for various applications

7. How to Choose

• Indoor → Z40–Z120

• Outdoor → Z180–Z275

• Appearance → Minimized / Zero spangle

• Structure → Regular spangle

8. FAQ

Q1: What is the difference between G40–G90 and Z40–Z275?
They are different standard designations for zinc coating weight.

Q2: Is GI hot rolled or cold rolled?
It is typically cold rolled steel with hot dip galvanizing.

Q3: Can GI sheet be used outdoors?
Yes, higher coating levels are recommended.

Q4: Can length be customized?
Yes, cut-to-length is available.