0.15mm 3.8mm Hot Dipped Galvanized Steel Sheet JIS G3302 SGCC Big Spangle

1.Product Overview

Hot dipped galvanized steel sheet is used where the steel substrate needs metallic zinc protection before fabrication or installation. This product range is suitable for pipe making, formed sheet parts, roofing components, appliance parts, and general industrial fabrication where corrosion resistance, sheet size, and surface condition need to be selected together.

The listed range covers 0.15–3.8mm thickness, 1000–5800mm length, and standard widths of 1000mm, 1220mm, 1250mm, and 1500mm. That range supports both light gauge sheet processing and heavier fabricated parts. For buyers focused on pipe production, thickness, coating mass, and surface treatment are the main control points because they affect forming stability, storage behavior, and corrosion performance after fabrication.

2.Technical Solution

This product uses a hot dip galvanizing process in which the steel sheet is coated with zinc to create a barrier layer between the steel and the service environment. In actual use, corrosion performance depends on zinc coating mass, cut-edge exposure, storage condition, drainage design, and whether the sheet is used indoors or outdoors.

The listed coating range is 40–275g/m2, covering G40–G90 routes in the ASTM designation system. Higher coating mass is generally selected when the service environment is more demanding. Lower coating mass is more suitable for lighter or better-controlled service conditions.

Spangle options include regular, minimized, big, and zero spangle. Spangle selection mainly affects surface appearance and downstream finishing consistency. Surface treatments such as passivated, oiled, and anti-finger acrylic coating help adapt the sheet to different storage, transport, and fabrication conditions.

3.Specifications

4.Application

This material is suitable for making pipes and other formed steel components where galvanized surface protection is required before or after fabrication.

It can also be used for roof and roof components, external wall parts, garage doors, window blinds, household appliance housings, transport-related sheet parts, industrial control cabinets, refrigeration equipment housings, vending machine panels, and furniture sheet fabrication.

For pipe making, the final result depends not only on coating mass but also on forming route, bend condition, welding or joining method, and storage environment after production.

5.Processing

• The sheet can be used for cutting, bending, profiling, punching, and general sheet metal fabrication. It is suitable for downstream processing into pipe blanks, formed panels, and industrial parts.
• For visible parts, spangle type and surface treatment should be selected before production because they affect final appearance and handling behavior. For pipe making or profile forming, the forming route should be checked against sheet thickness and bend requirement.
• For outdoor service, storage and installation details should be controlled so water is not trapped at overlaps, joints, or cut edges.

6.Advantages

• The 0.15–3.8mm range covers both light gauge sheet processing and heavier fabricated components.
• The 40–275g/m2 zinc coating range allows the product to be selected according to actual corrosion requirement instead of using one fixed coating level for all projects.
• Multiple spangle options allow the sheet to be matched to visible surface requirements and downstream finishing needs.
• Passivated, oiled, and anti-finger surface conditions give more flexibility for storage, handling, and fabrication routes.
• The listed standard widths are practical for pipe making, roofing, appliance, and industrial sheet conversion.

7.How to Choose

• Choose zinc coating level according to the actual service environment. For lighter indoor or protected use, a lower coating level may be acceptable. For exterior or more demanding use, a higher coating level within the listed range is generally more suitable.
• Choose regular or big spangle when standard galvanized appearance is acceptable. Choose minimized or zero spangle when surface uniformity is more important.
• Choose passivated surface for standard storage protection, oiled surface for temporary transport protection, and anti-finger treatment when cleaner visible surface handling is required.
• Choose thickness according to rigidity and forming route. Thin gauges are more suitable for light panels and easier forming. Thicker gauges are more suitable for stronger structural parts and higher stiffness requirements.

8.FAQ

Q1. What is the thickness range of this hot dipped galvanized steel sheet
The listed thickness range is 0.15–3.8mm.

Q2. What zinc coating range is available
The listed zinc coating range is 40–275g/m2.

Q3. What spangle options are available
The listed spangle options are regular, minimized, big, and zero.

Q4. What surface treatments are available
The listed surface treatments are passivated chromated, oiled, and anti-finger acrylic coating.

Q5. Is this product suitable for pipe making
Yes. The page directly lists pipe making as a main application, and the thickness and coating range make it suitable for pipe-related sheet fabrication when the correct specification is selected.