ASTM A653 DX51D SGCC SGCH Hot Dipped Galvanized Steel Coils for Building Materials and Appliances

１．Product Overview

ASTM A653 DX51D SGCC SGCH hot dipped galvanized steel coils are used for building materials, television components, household appliances, roofing systems, exterior wall panels, garage doors, window blinds, transportation parts, industrial equipment, and furniture components.

The product is manufactured by hot dipped galvanizing, with zinc coating protection and selectable spangle appearance. SGCH full hard grade is suitable for applications requiring higher rigidity, while SGCC and DX51D are commonly used for general forming and construction applications.

２．Technical Solution

The steel substrate is continuously galvanized to form a zinc coating on both sides. The coating helps protect the steel substrate from corrosion during storage, fabrication, and final use.

Surface treatment options include passivated, chromated, oiled, and anti-finger acrylic coating. These treatments support different requirements for storage protection, handling cleanliness, and downstream processing.

Regular, minimized, big, and zero spangle options are available for different surface appearance and application needs.

３．Specifications

４．Application

This galvanized steel coil is suitable for construction roofs, roof components, outside walls of civil and industrial buildings, garage doors, window blinds, washing machines, refrigerators, televisions, air conditioners, ventilation systems, vacuum cleaners, solar water heaters, car ceilings, mufflers, exhaust pipe heat shields, ship bulkheads, highway fences, industrial electric control cabinets, industrial refrigeration equipment, vending machines, lampshades, counters, signboards, and medical facilities.

５．Processing

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

Packaging can include edge protectors, steel hoops, seals, and export wrapped ID and OD protection. Cutting and slitting can be supplied according to customer production requirements.

６．Advantages

• ASTM A653, JIS G3302, and EN 10147 standards support international building and appliance applications.
• SGCC, DX51D, and SGCH grades support forming, structural rigidity, and full hard applications.
• 30–275g/m² zinc coating supports corrosion resistance for different service environments.
• Regular, minimized, big, and zero spangle options support different appearance requirements.
• 508mm and 610mm coil ID options support common processing lines.
• Passivated, oiled, and anti-finger treatments improve storage, handling, and processing performance.

７．How to Choose

• Choose SGCC or DX51D for general building material and forming applications.
• Choose SGCH full hard when higher rigidity and hardness are required.
• Choose DX53D when improved forming performance is required.
• Choose zero spangle when smoother appearance or further painting is required.
• Choose anti-finger acrylic coating for home appliance and visible surface applications.
• Choose higher zinc coating when stronger corrosion resistance is required.
• Confirm thickness, width, steel grade, zinc coating, spangle, coil ID, surface treatment, and packing method before production.

８．FAQ

Q1．What standards are available

JIS G3302, ASTM A653, and EN 10147 are available.

Q2．What steel grades can be supplied

SGCC, SGCD3, SGCE, SGCH Full Hard, DX51D, DX53D, Q195, SGC490, and ASTM A653 grades can be supplied.

Q3．What spangle types are available

Regular spangle, minimized spangle, big spangle, and zero spangle are available.

Q4．Can cutting and slitting be supplied

Yes. Cutting and slitting can be arranged according to customer requirements.

Q5．What are the main applications

The product is mainly used for building materials, home appliances, television components, roofing systems, exterior walls, transportation parts, industrial equipment, and furniture components.