Z60–Z275 Hot Dipped Galvanized Steel Coil 750–1250mm Width with Regular, Mini and Zero Spangle

１．Product Overview

Hot dipped galvanized steel coil is manufactured from carbon steel substrate through a continuous galvanizing process. The zinc coating provides corrosion protection while maintaining good formability and fabrication performance.

Available in widths from 750mm to 1250mm and thicknesses from 0.14mm to 5.0mm, the product is widely used for construction materials, purlins, structural profiles, home appliances, transportation equipment, and industrial fabrication.

Regular spangle, mini spangle, and zero spangle surfaces are available to meet different appearance and downstream processing requirements.

２．Technical Solution

The steel strip passes through a molten zinc bath where a protective zinc layer is metallurgically bonded to the steel surface.

The available zinc coating range of Z60 to Z275 provides protection against atmospheric corrosion in indoor and outdoor applications. Surface treatments including chromated, oiled, dry, and Cr3-treated finishes help improve storage stability, transportation protection, and processing performance.

Different spangle finishes can be selected according to painting, profiling, roll forming, or exposed architectural applications.

３．Specifications

４．Application

The product is widely used in roofing systems, wall panels, garage doors, rolling shutters, purlins, steel structures, ventilation ducts, household appliances, automotive components, industrial cabinets, storage systems, agricultural facilities, and general fabrication.

It is commonly processed into profiles, structural sections, corrugated sheets, cable trays, framing systems, and cold-formed building components.

５．Processing

The galvanized coils support slitting, cut-to-length processing, roll forming, bending, profiling, punching, stamping, and welding operations.

Both 508mm and 610mm coil IDs are suitable for standard processing lines. Surface treatments help maintain product quality during transportation and storage before fabrication.

６．Advantages

• Z60–Z275 zinc coating provides effective corrosion resistance for construction and industrial applications.
• 0.14–5.0mm thickness range supports both light-gauge and structural fabrication requirements.
• Regular, mini, and zero spangle finishes allow selection based on appearance and painting requirements.
• Multiple steel grades support forming, drawing, profiling, and structural applications.
• Chromated and Cr3-treated surfaces improve storage performance and reduce white rust risk.
• Annual production capacity of 300,000 MT supports large-volume project supply.

７．How to Choose

• Choose DX51D or SGCC for general construction and roll-forming applications.
• Choose DQ or DDQ grades when deep drawing performance is required.
• Choose zero spangle when painting quality and smooth appearance are important.
• Choose regular spangle for traditional galvanized appearance and cost-effective applications.
• Choose higher zinc coating levels for outdoor environments with higher corrosion exposure.
• Confirm thickness, width, coating weight, spangle type, and surface treatment before production.

８．FAQ

Q1．What spangle options are available?

Regular spangle, mini spangle, and zero spangle surfaces are available.

Q2．What zinc coating range can be supplied?

The available coating range is Z60 to Z275, equivalent to 60–275g/m² double-side coating.

Q3．What coil widths are available?

Standard widths range from 750mm to 1250mm.

Q4．What surface treatments are available?

Chromated, dry, oiled, and Cr3-treated finishes are available.

Q5．What are the main applications?

The product is widely used for roofing, wall systems, purlins, profiles, home appliances, automotive parts, industrial equipment, and construction structures.