30mm–400mm Z10–Z27 Hot Dipped Galvanized Steel Strip

1．Product Overview

30mm–400mm hot dipped galvanized steel strip is produced using continuous hot dip galvanizing technology with carbon steel substrate and zinc coating protection. The product is designed for welded pipe manufacturing, construction accessories, roll forming, appliance components, and general industrial fabrication.

The zinc coating provides corrosion resistance for indoor and outdoor applications, while anti-fingerprint and galvanized surface treatments improve handling and storage performance.

2．Technical Solution

• The galvanized strip is manufactured according to ASTM A653, JIS G3302, DIN, AISI, and GB standards.
• Available zinc coating ranges from Z30 to Z275 to support different corrosion protection requirements. The strip supports regular, minimized, and zero spangle surface options according to appearance and downstream processing requirements.
• The narrow strip width range of 30–400mm is suitable for tube production, steel profile processing, roll forming, and industrial component manufacturing.

3．Specifications

4．Application

The galvanized steel strip is widely used for greenhouse pipes, gas pipes, heating pipes, roof reinforcement, roof grille systems, steel profiles, appliance shells, kitchen equipment, automotive corrosion-resistant components, storage systems, refrigeration equipment, and industrial packaging.

It is suitable for continuous forming and welded tube production requiring stable zinc coating and corrosion resistance.

5．Processing

• The strip supports slitting, roll forming, bending, stamping, profiling, and pipe welding processing.
• Anti-fingerprint treatment helps improve handling cleanliness and surface appearance during fabrication.
• Standard export packing supports container shipment and long-distance transportation.
• Custom width and coil processing are available according to project requirements.

6．Advantages

• The Z30–Z275 zinc coating range supports different corrosion resistance requirements.
• The narrow strip width range is suitable for tube mills and roll forming production lines.
• Continuous galvanizing technology provides stable coating adhesion and dimensional consistency.
• Multiple spangle options support decorative and industrial surface requirements.
• Anti-fingerprint treatment improves storage and processing performance.
• Suitable for construction, industrial fabrication, and appliance applications.

7．How to Choose

• Choose lower zinc coating levels for indoor dry environments and higher coating levels for outdoor or humid applications.
• Choose SGCC for general forming applications.
• Choose DX51D+Z for improved forming and bending performance.
• Choose minimized or zero spangle when smoother appearance is required.
• Confirm required strip width, thickness, zinc coating, and surface treatment before production.

8．FAQ

Q1．What is the main use of galvanized steel strip
It is mainly used for welded pipes, roll forming, construction accessories, appliance parts, and industrial fabrication.

Q2．What zinc coating range is available
The available zinc coating range is Z30–Z275.

Q3．What surface treatments are available
Galvanized and anti-fingerprint surface treatments are available.

Q4．Can narrow strip widths be supplied
Yes. Widths from 30mm to 400mm are available.

Q5．What spangle types are available
Regular, minimized, and zero spangle surface finishes are available.