ASTM A653 JIS G3302 Hot Dipped Galvanized Steel Strip G40-G90 with Chromated and Oiled Surface

１．Product Overview

ASTM A653 JIS G3302 hot dipped galvanized steel strip is used for welded pipes, construction roof panels, roof grilles, home appliance shells, kitchen utensils, automotive corrosion-resistant parts, refrigeration processing, storage systems, and packaging applications.

The product is supplied with G40-G90 coating designation and zinc coating from 40g/m² to 275g/m². Regular and big spangle surfaces are available, while passivated, chromated, and oiled treatments support storage protection and downstream fabrication.

２．Technical Solution

The steel strip is coated with zinc through continuous hot dip galvanizing to form a protective metallic layer on the steel surface.

Passivated and chromated surface treatment helps reduce oxidation during storage and shipment. Oiled surface treatment provides temporary rust protection and improves handling during processing.

The product can be supplied according to ASTM A653, JIS G3302, and EN10147 standards, with SGCC, SGCD, SGCE, SGCH, DX51D+Z, DX52D+Z, and DX53D+Z grade options.

３．Specifications

４．Application

This galvanized steel strip is suitable for greenhouse pipes, gas pipes, heating pipes, industrial and civil building roof panels, roof grilles, home appliance shells, kitchen utensils, automotive corrosion-resistant parts, food and material storage, transportation equipment, refrigeration processing, and packaging materials.

It is also suitable for applications requiring narrow galvanized strip with corrosion resistance, forming performance, and stable surface condition.

５．Processing

The product supports slitting, cutting, roll forming, bending, stamping, punching, welding, profiling, and general fabrication.

Customized width, length, zinc coating, spangle type, surface treatment, coil size, and packing method can be supplied according to customer requirements.

６．Advantages

• G40-G90 coating designation supports different corrosion protection requirements.
• 40-275g/m² zinc coating provides surface protection for construction, pipe, appliance, and automotive applications.
• Regular and big spangle options support different galvanized surface appearances.
• Passivated, chromated, and oiled treatments improve storage and handling performance.
• 30-630mm strip width supports welded pipe, roofing accessory, and component fabrication.
• ASTM A653, JIS G3302, and EN10147 standards support export and industrial procurement requirements.

７．How to Choose

• Choose G40 coating for general indoor or light-duty applications.
• Choose G90 coating when higher corrosion resistance is required.
• Choose regular spangle for standard galvanized strip applications.
• Choose big spangle when visible galvanized crystal appearance is required.
• Choose oiled surface when temporary rust protection is required.
• Choose passivated or chromated surface for better storage stability.
• Confirm grade, thickness, width, zinc coating, spangle, surface treatment, coil size, and packing method before production.

８．FAQ

Q1．What coating designation is available

G40-G90 coating designation is available.

Q2．What zinc coating range can be supplied

The zinc coating range is 30-275g/m², with 40-275g/m² listed as the main coating range.

Q3．What standards are available

ASTM A653, JIS G3302, and EN10147 standards are available.

Q4．What surface treatments can be supplied

Passivated, chromated, and oiled surface treatments can be supplied.

Q5．What are the main applications

The product is mainly used for welded pipes, construction roof panels, roof grilles, home appliance shells, kitchen utensils, automotive corrosion-resistant parts, refrigeration processing, storage, and packaging.