S220gd Galvanized Steel Coil with 0.3-3.0mm Thickness and 30-275G/M2 Zinc Coating for Construction and Roofing
Price:
Negotiable
MOQ:
10 Ton
Delivery Time:
Negotiable
Brand:
Gnee
Product Description
Galvanized Steel Coil Products
S220GD, S250GD, S280GD, S350GD, S550GD, DX51D, DX52D, DX53D, DX54D
Hot Dip Galvanizing Process
Hot dip galvanizing is an industrial process where steel undergoes pickling to remove surface iron oxide, followed by cleaning in ammonium chloride or zinc chloride solutions, and finally immersion in a molten zinc bath. The resulting alloy layer bonds the zinc coating to the steel substrate, providing superior corrosion protection for applications in construction, appliances, automotive, and power industries.
Product Specifications
Thickness:
0.3 - 3.0 mm
Width:
600 - 1500 mm
Zinc Coating:
30 - 275 g/m²
Coil ID:
508 / 610 mm
Coil Weight:
3 - 5 Tons
Hardness:
Soft (HRB60), Medium (HRB60-85), Full Hard (HRB85-95)
Technical Standards
ASTM-A653; JIS G3302; EN10147; EN10326 and other international standards
Surface Characteristics
Surface Structure
Regular spangle, Minimum spangle, Zero spangle, Big spangle
Surface Treatment
Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass
Extended Specifications
- Thickness range: 0.12 - 6.0 mm
- Width: 600 - 1500 mm
- Materials: SGCC, DX51D-DX53D, G350-G550
- Zinc coating: 30 - 600 g/m²
- Payment terms: T/T, LC, Kun Lun Bank, Western Union, Paypal, O/A, DP
Product Benefits
Hot dipped galvanized steel coil is manufactured by processing full hard sheet through acid washing, rolling, and zinc immersion. The resulting zinc coating provides exceptional corrosion resistance, paint adhesion, and workability due to zinc's self-sacrificing protective characteristics. This process enables precise control over zinc coating thickness (maximum 120g/m²) and surface finish options including zero spangle or extra smooth treatments.
Product Images
Ordering Information
Regular orders: 25 tons or one container. For smaller quantities, please contact us for customized solutions.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Gnee Steel (tianjin) Co., Ltd.
Location
FLAT/RM 1512 15/F LUCKY CENTRE NO.165-171 WAN CHAI ROAD WAN CHAI HK
Contact Person
Kelly Zhang