Hot Dip Galvanized Steel Coil EN 10346
EN 10346 is a technical standard for continuous hot-dip galvanized and zinc-iron alloy coated steel sheets and strips issued by the European Committee for Standardization, covering material properties, classification and application range.
| Material classification | Based on the purpose and performance, common materials include DX51D+Z (for foundation structure), HX500LAD (high-strength low-alloy steel), S550GD+Z (for high-strength structure), etc. |
|---|---|
| Coating specification | The weight range of the galvanized layer is 80~275g/m², which can meet the protection needs of different environments. |
| Surface treatment | Supports environmentally friendly passivation (such as flowerless galvanizing) and flowered galvanizing, which affects the appearance and post-processing adaptability. |
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Technical Parameters
| Parameter category | Specification range |
|---|---|
| Substrate material | DX51D~DX56D |
| Thickness range | 0.12mm~3.0mm |
| Width range | 600mm~1600mm |
| Coating weight | Z60~Z600 (60~600g/m²) |
| Surface structure | Conventional zinc flower/no zinc flower/small zinc flower |
| Mechanical properties | YS:140-500MPa / TS:270-550MPa |
- Coating grading system
According to the EN10346 standard, the coating code corresponds to the specific application scenario:
| Code | Zinc layer weight (g/m²) | Applicable environment |
|---|---|---|
| Z100 | 100 | Indoor dry environment |
| Z180 | 180 | General industrial atmosphere environment |
| Z275 | 275 | Coastal/high humidity area |
| Z350 | 350 | Heavy industrial pollution area |
| Z600 | 600 | Extremely corrosive environment |
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Core Advantages Comparison Table
| Features | Traditional cold-rolled sheet | EN10346 Hot Dipped Galvanized Coil |
|---|---|---|
| Anti-corrosion life | 2-5 years | 25 years and above |
| Surface zinc layer | None | 20-275g/m² |
| Life cycle cost | High | Reduce by 40% |
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