Customization: | Available |
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After-sales Service: | Tracking Services, Technical Guidance |
Warranty: | 3year |
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Metallic Zinc Coating
When a metallic zinc spray is applied, the average mass of zinc per unit area must be no less than 130g/m².However, locally, the minimum mass should not fall below 110g/m². Custom mass specifications can also be accommodated upon request.
Bitumen Coating
The mean thickness of the bitumen coating must be at least 70 μm, with a local minimum thickness no less than 50 μm. Custom thickness specifications are also available upon request.
Alternative Coating
Process and Testing Procedures:
1. Induction furnace and treated metal (Includes chemical analysis of raw materials, spheroidizing, and nodularity checks).
2. Casting (Includes visual inspection and weight checks).
3. Heat Treatment (Includes microstructure analysis).
4. Hydrostatic Test (Conducts pressure testing).
5. Dimensional Checks (Examines pipe length, joints, outer diameter, wall thickness, and overall appearance).
6. Zinc Spraying (Thickness testing is performed).
7. Lining and Coating (Undergoes 100% visual inspection and random thickness testing).
8. Marking and Packing (Ensures 100% visual inspection).
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