ASTM A653 Q195 SGC490 Full Hard Spangle Hot Dipped Galvanized Steel Coil for Building Materials

ASTM A653 Q195 SGC490 Full Hard Spangle Hot Dipped Galvanized Steel Coil for Building Materials

1．Product Overview

ASTM A653 Q195 SGC490 full hard spangle hot dipped galvanized steel coil is used for building materials, roofing components, wall panels, garage doors, window blinds, household appliances, transportation parts, industrial equipment, and furniture components.

The product is manufactured through hot dipped galvanizing, with double-side zinc coating from 60g/m² to 275g/m². Multiple steel grades and spangle options support different forming, structural, and appearance requirements.

2．Technical Solution

The steel substrate is coated with zinc through hot dipped galvanizing to improve corrosion resistance and surface durability.

Surface treatments include passivated, chromated, oiled, and anti-finger treatment. These options support storage protection, shipment stability, and downstream processing.

Regular, minimized, big, and zero spangle surfaces can be selected according to project appearance, painting, forming, or industrial fabrication requirements.

3．Specifications

4．Application

This galvanized steel coil is suitable for 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, electric control cabinets, industrial refrigeration equipment, vending machines, lampshades, counters, signboards, and medical facilities.

5．Processing

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

Edge protectors, steel hoops, seals, export wrapping, and ID/OD protection can be supplied according to shipment and storage requirements.

Cutting and slitting can be arranged according to customer width and downstream production requirements.

6．Advantages

60–275g/m² zinc coating supports corrosion resistance for building and industrial applications.

0.14–3.8mm thickness range supports light-gauge and medium-duty fabrication.

508mm and 610mm coil ID options match common processing equipment.

Multiple spangle options support different surface appearance requirements.

Passivated, oiled, and anti-finger treatments support storage and processing needs.

JIS G3302, ASTM A653, and EN 10147 standards support export project requirements.

7．How to Choose

• Choose SGCC or DX51D for general forming and building material applications.
• Choose SGCH full hard when higher hardness and rigidity are required.
• Choose SGC490 when stronger structural performance is needed.
• Choose zero spangle for smoother surface and painting applications.
• Choose regular or big spangle for visible galvanized surface appearance.
• Choose higher zinc coating when the application requires stronger corrosion resistance.
• Confirm thickness, width, steel grade, zinc coating, spangle type, 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, SGCD, SGCE, SGCH Full Hard, DX51D, DX53D, Q195, SGC490, and ASTM A653 grades can be supplied.

Q3．What zinc coating range is available

The zinc coating range is 60g/m² to 275g/m².

Q4．What spangle types are available

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

Q5．Can cutting and slitting be supplied

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