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
|
Parameter |
Value |
|---|---|
|
Thickness |
0.15–3.8 mm |
|
Width |
1000–1500 mm |
|
Length |
1000–5800 mm |
|
Zinc Coating |
40–275 g/m² |
|
Spangle |
Regular / Minimized / Big / Zero |
|
Surface Treatment |
Chromated / Oiled / Anti-fingerprint |
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.