Zinc Coated Galvanized 4.2x0.5 Coiled Line Pipe 240h Salt Spray Test
Wall Bundy Tube For Refrigerator Freezer Condenser Parts Znic Coated Galvanized Coil Tube
Description:
- With smooth surface, the average roughness Ra is 0.6µm≤Ra≤1.9µm
- Inner cleanliness is 0.1948/m2 Max.
- Various ways of bending and cutting fabrication is possible
- Zinc, copper plating is available following customer’s request. The hot galvanizing thickness can be above 8 µm
- Clean inner wall with industrial alcohol to guaranty the cleanliness
- Salt spray test for hot galvanizing tube is above 72 hours
- Packing: antirust paper for inner packing and cloth for outer packing
2. Steel Grade
BHG1, SPCC, SPCD, SPCEN, ST14, ST15, ST16, DC04, DC05, DC06
3. Heat Treatment
BK or NBK
4. Specification
| OD mm | 4 | 4.2 | 4.76 | 6 | 6.35 | 7.8 | 8 | 9.52 |
| W T | 0.5-1.0mm (0.5-0.7mm common WT) | |||||||
| Tolerance | ±0.05mm | |||||||
| Length | 180Kg/coil; 700-1000m/coil; per customer’s request | |||||||
5. Production Process
Tube welding– Cold drawing (reduce diameter)– Annealing in Protected Atmosphere— Cleaning-- Leakage detection– Zinc/Copper Plating– Keep pressure (Airtightness) – Packing
6. Surface Treatment
| Coating | Thickness | Salt spray test duration |
| Copper/White Zinc/Colour-Zinc | 8μm | 72h |
| PVF | 8μm+20μm | 1000-2000h |
| Military Green Zinc | 8μm | 180h |
| GALFAN | 8μm+20μm | 1000-2000h |
| Nylon | 8μm+40μm | 180h |
7. Packing: In coil, in wooden box with seaworthy packing
8. Application
Fluid carrying system for automobiles
Fluid carrying system for refrigerators
Wire condenser for chillers, showcase
Vending machine, ice machine etc.
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