DX51D+Z Chromated Hot Dipped Galvanized Steel Strip ASTM A653 JIS G3302 for

DX51D+Z Chromated Hot Dipped Galvanized Steel Strip ASTM A653 JIS G3302 for Welded Pipe and Construction Applications

１．Product Overview

DX51D+Z chromated hot dipped galvanized steel strip is used for welded pipes, greenhouse pipes, gas pipes, heating 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 according to ASTM A653, JIS G3302, and EN10147 standards. Zinc coating options from 40g/m² to 275g/m² support different corrosion resistance requirements, while chromated and oiled surface treatments improve storage and handling performance.

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 treatment helps reduce oxidation during storage and transportation. Oiled surface treatment provides temporary rust protection for shipment and downstream fabrication.

Regular spangle, big spangle, small spangle, medium spangle, and zero spangle options can be supplied according to appearance and processing requirements.

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 commonly used where narrow galvanized strip requires 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 thickness, width, zinc coating, spangle type, surface treatment, coil size, and packing method can be supplied according to project requirements.

６．Advantages

• DX51D+Z grade supports general forming and galvanized strip processing.
• 40-275g/m² zinc coating provides corrosion protection for construction, pipe, appliance, and automotive applications.
• Chromated and oiled surface treatments improve storage and transportation protection.
• Regular, big, small, medium, and zero spangle options support different appearance requirements.
• 30-630mm width range supports welded pipe, roof grille, component, and packaging applications.
• ASTM A653, JIS G3302, and EN10147 standards support export and industrial procurement needs.

７．How to Choose

• Choose DX51D+Z for general forming and construction applications.
• Choose SGCC when JIS galvanized strip grade is required.
• Choose higher zinc coating for outdoor or humid environments.
• Choose chromated surface when storage stability is important.
• Choose oiled surface when temporary rust protection is required.
• Choose zero spangle when smoother appearance or further coating is required.
• Confirm grade, thickness, width, zinc coating, spangle type, surface treatment, coil size, and packing method before production.

８．FAQ

Q1．What standards are available

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

Q2．What zinc coating range can be supplied

The listed zinc coating options include 30-275g/m², 40-300g/m², Z30-Z275, 80-120g/m², and 40-275g/m².

Q3．What spangle options are available

Regular, big, medium, small, and zero spangle options 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.