What is a galvanized steel sheet?
Galvanized steel is a type of rolled metal products or an ordinary steel sheet coated with a protective layer of zinc against moisture penetration and exposure to air. Such a protective coating can be applied just on one or both sides or of the steel sheet. The thickness of the protective coating may vary depending on the further area of application of the galvanized steel sheet, as well as on the expected humidity degree of the environment.
Product Specifications
| Product name | galvanized steel sheet / galvanized steel plate |
| Technical Standard | AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc |
| Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490,SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement |
| Types | Commercial / Drawing / Deep Drawing / Structural quality |
| Width | 600-1250mm |
| Thickness | 0.12-6.0mm |
| Length | as customer`s required |
| Zinc Coating | 30-275g/m2 |
| Zero Spangle | ZERO SPANGLE/MINIMIZED SPANGLE/REGULAR SPANGLE |
| Coil ID | 508mm or 610mm |
| Coil Weight | 3-8 MT per coil |
| Application | Household appliances, hardware, interior decoration and other industries. |
Types of zinc spangles
ZERO SPANGLE / MINIMIZED SPANGLE / REGULAR SPANGLE
Packaging and Shipping
At GNEE, every galvanized steel sheet is carefully packaged to ensure maximum protection during storage, inland transportation, and international shipping. Each bundle is wrapped with waterproof paper and moisture-resistant plastic film to prevent humidity and surface damage. Galvanized steel straps and edge protectors are applied to secure the sheets and minimize movement during transit. Wooden pallets or steel pallets are available upon request for easier handling and loading.
FAQ
1. What are the common zinc coating weights?
Common coating designations include Z60, Z80, Z100, Z120, Z140, Z180, Z275, and Z450. Higher coating weights generally provide better corrosion resistance.
2. Which international standards apply to galvanized steel?
Common standards include:
- ASTM A653/A653M
- EN 10346
- JIS G3302
- ISO 3575
- GB/T 2518
These standards specify coating weight, mechanical properties, and dimensional tolerances.
3. What steel grades are available for galvanized steel?
Common grades include DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z, SGCC, SGHC, and ASTM A653 grades.
4. Can galvanized steel be welded?
Yes. Galvanized steel can be welded using appropriate welding techniques. Proper ventilation and removal of zinc coating near the weld area are recommended to achieve better weld quality.
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