| Brand Name: | Huaye |
| MOQ: | 50MT |
| Delivery Time: | 45 days |
| Payment Terms: | T/T or L/C |
0.50mm DX51D Z120 Hot Dipped Galvanized Steel Coils for Roofing and Building Fabrication
1.Product Overview
0.50mm DX51D Z120 Hot Dipped Galvanized Steel Coils are zinc-coated steel products designed for roofing sheets, wall panels, ventilation components, building accessories, equipment housings, and general sheet metal fabrication.
The product uses DX51D steel as the substrate with a Z120 zinc coating. During continuous hot-dip galvanizing, the steel strip passes through a molten zinc bath to form a protective metallic coating on the surface.
The 0.50mm thickness is suitable for lightweight forming and profiling applications. The coil format supports continuous production processes such as roll forming, corrugating, slitting, and cut-to-length processing.
2.Technical Solution
The steel strip is cleaned and prepared before entering the continuous hot-dip galvanizing line. Zinc is applied to both surfaces of the steel substrate to create a metallic protective layer.
The Z120 coating provides a nominal total zinc coating weight of 120g/m² on both sides. The zinc layer helps isolate the base steel from moisture and atmospheric exposure while also providing sacrificial protection at cut edges and minor surface damage.
DX51D substrate is suitable for general forming operations required in roofing, wall panel, duct, and building component production.
Depending on downstream processing requirements, the galvanized surface can be supplied with passivation, oiling, skin passing, or other suitable surface treatments.
3.Specifications
|
Parameter |
Value |
|---|---|
|
Product Name |
Hot Dipped Galvanized Steel Coils |
|
Product Type |
GI Steel Coil |
|
Steel Grade |
DX51D |
|
Thickness |
0.50mm |
|
Zinc Coating |
Z120, 120g/m² |
|
Coating Process |
Continuous Hot-Dip Galvanizing |
|
Surface |
Galvanized Finish |
|
Spangle |
Regular / Minimized / Zero Spangle |
|
Surface Treatment |
Passivated / Oiled / Skin-Passed / Customized |
|
Width |
According to Requirement |
|
Coil ID |
According to Processing Requirement |
|
Coil Weight |
According to Order Requirement |
|
Edge |
Mill Edge / Slit Edge |
|
Packing |
Standard Export Seaworthy Packing |
4.Application
5.Processing
6.Advantages
7.How to Choose
8.FAQ
Q1.What is hot dipped galvanized steel coil?
Hot dipped galvanized steel coil is steel coated with zinc by passing the prepared steel strip through a molten zinc bath during continuous galvanizing production.
Q2.What does Z120 mean?
Z120 indicates a nominal total zinc coating weight of 120g/m² on both sides of the steel strip.
Q3.What is the substrate grade?
The representative specification uses DX51D, a forming-grade steel suitable for general profiling, bending, and roll-forming applications.
Q4.Can galvanized steel coils be used for roofing production?
Yes. The coils can be processed through corrugating and roll-forming lines to manufacture roofing sheets, wall panels, and related building profiles.
Q5.What spangle types are available?
Common surface appearances include regular spangle, minimized spangle, and zero spangle.
Q6.Can galvanized steel coils be slit?
Yes. The coils can be slit into narrower widths according to downstream processing and finished product requirements.
Q7.What surface treatments are available?
Typical options include passivation, oiling, skin passing, and customized surface treatments according to application requirements.
Q8.How should galvanized steel coils be stored?
The coils should be stored in a dry and ventilated indoor environment. Condensation, standing water, damaged packaging, and prolonged exposure to moisture should be avoided.