SGHC SGH340 EGI Steel Coil 0.5mm Thickness Electro Galvanized Steel Sheet with Phosphate Treatment

１．Product Overview

SGHC and SGH340 EGI Steel Coils are electro galvanized steel products designed for applications requiring a combination of corrosion resistance, surface quality, and mechanical strength. The electro galvanizing process produces a smooth zinc-coated surface suitable for fabrication, painting, and industrial manufacturing.

The phosphate-treated surface improves coating adhesion and processing performance, making the material suitable for construction, household appliances, automotive components, and industrial equipment.

２．Technical Solution

The steel substrate is coated through an electro galvanizing process to create a uniform zinc layer that protects the steel from corrosion. A phosphate treatment is subsequently applied to enhance paintability, improve coating adhesion, and increase surface durability during manufacturing and handling.

SGHC and SGH340 grades provide reliable mechanical properties for forming, bending, stamping, and fabrication operations.

３．Specifications

４．Application

The product is suitable for roofing accessories, wall systems, appliance housings, electrical cabinets, ventilation equipment, automotive components, industrial machinery, storage equipment, furniture manufacturing, and general engineering applications.

５．Processing

The material can be slit, cut to length, stamped, bent, punched, welded, painted, and assembled. The phosphate-treated surface supports painting, powder coating, and other finishing processes.

６．Advantages

• Smooth electro galvanized surface finish
• Reliable corrosion resistance with zinc coating
• Good formability and fabrication performance
• Enhanced paint adhesion through phosphate treatment
• Suitable for appliance and industrial applications
• Stable dimensional accuracy
• Consistent product quality

７．How to Choose

• Choose SGHC for general-purpose galvanized applications.
• Select SGH340 when higher strength is required.
• Consider coating weight according to service environment.
• Use phosphate-treated material for painted products.
• Match thickness and width with fabrication requirements.

８．FAQ

Q1．What grades are available for this product
The product is available in SGHC and SGH340 grades.

Q2．What is the zinc coating of this specification
The listed specification uses an 80g/m² zinc coating.

Q3．What is the benefit of phosphate treatment
Phosphate treatment improves paint adhesion, processing performance, and surface durability.

Q4．Can this material be used for appliance manufacturing
Yes, it is widely used for appliance housings, electrical equipment, and industrial components.

Q5．What is the maximum coil weight
The maximum coil weight is 5MT.