ASTM 3mm Thickness Galvanized Steel Coil DC01 DC02 - 0.12-6.00mm Range, 600-1500mm Width
Galvanized steel coil is manufactured from carbon steel coil through a galvanizing process where a protective zinc coating is applied to the surface. This zinc layer significantly enhances corrosion resistance and extends service life by protecting the steel substrate from moisture and temperature-related damage. The steel is immersed in molten zinc, creating a strong chemical bond that becomes integral to the material composition.
- Hot-dip galvanizing: Steel coil passes through molten zinc bath for uniform coating application. Produces thicker zinc layers with superior corrosion protection.
- Electro-galvanizing: Zinc adheres through electrolytic deposition. Creates thinner, smoother coatings ideal for precision applications.
Zinc spangle refers to the distinctive surface pattern on hot-dip pure zinc coils. As the steel strip passes through the zinc pot and the liquid zinc solidifies naturally, zinc grain nuclei grow to form characteristic spangle patterns of various sizes and shapes.
| Parameter | Specification |
|---|---|
| Product Name | Galvanized Steel Sheet Coil |
| Steel Grade | Dx51D, Dx52D, Dx53D, DX54D, DX55D, DX56D, DX57D, S220GD, S250GD, S280GD, S320GD, S350GD, S390GD, S420GD, S450GD, S550GD, SGHC, SGH340, SGH400, SGH440, SGH490, SGH540, SGCC, SGCH, SGCD1, SGCD2, SGCD3, SGCD4, SGC340, SGC400, SGC440, SGC490, SGC570; CS-A, CS-B, CS-C, Grade 33, grade 37, grade 40, grade 50, grade 60, grade 70, grade 80; G1, G2, G3, G250, G300, G450, G550; Custom grades available |
| Type | Coil/Sheet/Plate/Strip |
| Standard | JIS G3302, JIS G3313, GB/T2518-88, GB11253-89, ASTM A1008-2000, EN10169, etc. |
| Thickness | 0.12-6.00mm, or custom requirements |
| Width | 600mm-1500mm, according to customer specifications |
| Surface Treatment | Passivation (C), Oiling (O), Lacquer sealing (L), Phosphating (P), Untreated (U) |
| Surface Structure | Normal spangle coating (NS), minimized spangle coating (MS), spangle-free (FS) |
| Sample | Available |
| Package | Waterproof paper inner packing, galvanized steel or coated steel sheet outer packing, side guard plates, wrapped with seven steel belts, or custom packaging |
- Excellent Corrosion Resistance: Zinc coating provides superior electrochemical protection compared to painting and plastic coatings. Maintains integrity for decades without peeling, with high collision and scratch resistance.
- Strong Durability: Functions as both physical barrier and sacrificial anode protection when coating is damaged.
- Superior Workability: Maintains steel processability with thin, uniform zinc layer that doesn't interfere with forming operations.
- Thermal Resistance: Maintains appearance without discoloration below 230°C, discolors above 250°C.
We provide comprehensive processing services including bending, welding, decoiling, punching, cutting, moulding, and custom operations to meet specific application requirements.
| Container Type | Dimensions | Capacity |
|---|---|---|
| 20ft GP | 5898mm x 2352mm x 2393mm | 24-26 CBM |
| 40ft GP | 12032mm x 2352mm x 2393mm | 54 CBM |
| 40ft HC | 12032mm x 2352mm x 2698mm | 68 CBM |
- Mechanical Testing (Tensile of Area)
- Hardness Testing
- Chemical Analysis - Spectro Analysis
- Positive Material Identification - PMI Testing
- Micro and Macro Testing
- Pitting Resistance Testing
- Flaring Testing
- Intergranular Corrosion (IGC) Testing
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