GI and GL Steel Coil
Factory-Oriented GI and GL Steel Coil Supply With Export Experience
GI - Galvanized Steel Products
GL - Galvalume Steel Products
GI and GL Steel Coil Specification
| Parameter | GI (Galvanized Steel) | GL (Galvalume Steel) |
|---|---|---|
| Thickness | 0.115 mm - 2.0 mm | 0.115 mm - 1.5 mm |
| Width | 600 mm - 1250 mm | 600 mm - 1250 mm |
| Coating Weight | Z30 - Z275 g/m² | AZ30 - AZ275 g/m² |
| Standard | ASTM A653, EN 10346, JIS G3302 | ASTM A792, EN 10346, JIS G3321 |
| Steel Grade | DX51D, SGCC, CS Type A/B | SGLCC, DX51D+AZ |
| Surface / Spangle | Regular Spangle, Zero / Minimum Spangle, Big Spangle | Regular Spangle, Zero Spangle |
| Surface Treatment | Chromated, Oiled, Unoiled | Anti-fingerprint (AFP), Oiled |
| Coil Weight | 3 - 8 MT | 3 - 8 MT |
| Inner Diameter | 508 / 610 mm | 508 / 610 mm |
| Application | Roofing sheets, Ductwork, Structural panels, Home appliances | High-corrosion roofing, Industrial wall cladding, Automotive parts |
Factory to Delivery
Coating, dimensions, and surface condition are checked against the confirmed order specification before shipment.
Shipping schedules and container loading plans are coordinated after production and booking are confirmed.
Buyer Concern & FAQ
What is the difference between galvanized and galvalume steel coil?
Galvanized steel uses a zinc coating, while galvalume steel uses an aluminum-zinc alloy coating. Selection depends on the grade, coating mass, forming process, exposure environment, end use, and confirmed order specification.
How should I select zinc or Al-Zn coating weight?
Coating weight should be selected according to the intended application, exposure conditions, forming requirements, applicable standard, and project specification. The required designation and test method are confirmed with the order.
How are thickness, coating, and coil weight checked?
Dimensions, coating, surface condition, and coil weight are checked against the confirmed order requirements using the agreed inspection methods and tolerances.
How is production lead time confirmed?
The production schedule is confirmed after the grade, coating, dimensions, quantity, packaging, current production plan, and shipment requirements have been reviewed.
How are GI and GL coils packed and shipped?
Packaging and loading are selected according to coil dimensions, surface treatment, handling method, and shipment requirements and may include protective wrapping, edge protection, steel strapping, and secured container loading.
