ASTM A653 SGCC DX51D Hot Dipped Galvanized Steel Strip G40-G90 with Regular and Big Spangle

ASTM A653 SGCC DX51D Hot Dipped Galvanized Steel Strip G40-G90 with Regular and Big Spangle

１．Product Overview

ASTM A653 Hot Dipped Galvanized Steel Strip is manufactured from carbon steel substrates and coated with zinc through a continuous hot-dip galvanizing process. Available in SGCC, DX51D+Z, DX52D+Z, and DX53D+Z grades, the product provides reliable corrosion protection and stable forming performance for construction, pipe manufacturing, appliance production, automotive components, and packaging applications.

The galvanized coating range from G40 to G90 and zinc coating from 40g/m² to 275g/m² offer flexible solutions for different environmental exposure conditions.

２．Technical Solution

The steel strip is continuously immersed in molten zinc, forming a metallurgically bonded coating layer on the steel surface. This coating acts as both a barrier layer and sacrificial protection layer against corrosion.

Passivated and oiled surface treatments help improve storage performance, reduce white rust formation, and enhance processing efficiency during fabrication and transportation.

３．Specifications

４．Application

This galvanized steel strip is widely used for greenhouse pipes, gas pipes, heating pipes, roofing panels, roof grilles, appliance housings, kitchen equipment, automotive anti-corrosion parts, food storage equipment, refrigeration systems, and industrial packaging applications.

Its combination of corrosion resistance and formability makes it suitable for both indoor and outdoor industrial environments.

５．Processing

The material can be supplied in coil, slit coil, or cut-length form according to customer requirements.

It supports slitting, cutting, roll forming, bending, stamping, welding, and profiling operations.

Passivated and oiled finishes help maintain surface quality during storage and transportation.

６．Advantages

• Available in multiple international standards including ASTM A653 and JIS G3302.
• Supports Regular Spangle and Big Spangle appearance requirements.
• G40-G90 coating options provide flexible corrosion protection.
• Suitable for welding, forming, stamping, and profiling processes.
• Reliable coating adhesion and long-term durability.
• Widely used across construction, appliance, automotive, and industrial sectors.

７．How to Choose

• Choose G40-G60 coatings for indoor and controlled environments.
• Choose G90 or higher zinc coating levels for outdoor exposure and longer service life.
• Select SGCC for general forming applications.
• Select DX52D or DX53D when higher formability and deeper drawing performance are required.
• Specify spangle type based on appearance and painting requirements.
• Confirm width, thickness, coating weight, and surface treatment before ordering.

８．FAQ

Q1．What coating range is available?

The product is available with zinc coatings from 20g/m² to 275g/m² and coating designations from G40 to G90.

Q2．What spangle options are available?

Big Spangle, Regular Spangle, Mini Spangle, and Zero Spangle are available.

Q3．What surface treatments can be supplied?

Passivated (chromated), oiled, phosphated, and galvanized finishes are available.

Q4．What standards does the product comply with?

ASTM A653, JIS G3302, EN10142, DIN, AISI, and GB standards.

Q5．Can the strip be supplied in slit widths?

Yes. Slitting and customized widths can be supplied according to customer requirements.