Galvanized Double Wall Bundy Tube Zinc Coating For Automobile Brake
TORICH With Zinc Coating For Automobile Brake Double Wall Galvanized Bundy Tube
1. Standard
GM123M, GM124M, TS7600G, GB 11258-89
2. Steel Grade/Steel Material/Steel Number:
Low carbon steel, such as SPCCBLDBLC
3. Raw Material:
Cold rolled low carbon steel strip
4. Characteristic:
Good Surface Quality, Uniform coating
No coating burr
Stable quality
Excellent corrosion resistance
TORICH QUALITY ASSURANCE
5. Application:
Brake tube on automobile
6. Specifications:
| OD(mm) | OD tolerance(mm) | WT(mm) | WT tolerance(mm) | Coil length |
| 4.76 (3/16”) |
+/-0.10 or as per customer’s requirement |
0.7 |
+/-0.07 |
600-1000m/coil |
| 6 | ||||
| 6.35 | ||||
| 8 (5/16”) | ||||
| 9.5 (3/8”) | ||||
| 10 | ||||
| 11.1 (7/16”) | ||||
| 12 | ||||
| 12.7 (1/2”) | ||||
| 8 |
1 |
+/-0.1 | ||
| 10 | ||||
| 12 |
7. Mechanical properties:
| Tensile Stregth (min) | 270MPa |
| Yield Stregth (min) | 180 MPa |
| Elongation (min) | 14% |
8. Coating:
| Type | Thickness | Salt spray test time |
| white zinc coating | 8μm | 72h |
| color zinc coating | 8μm | 72h |
| olive green coating | 8μm | 180h |
| PVF coating | white zinc 8μm + PVF 20μm | 1000h |
| nylon coating | white zinc 8μm + nylon 40μm | 10000h |
9. Packing: In coil, in wooden box with seaworthy packing
10. Product photos:
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