GM123M GM124M Welded Steel Tube Double Wall Brake Tube Excellent Corrosion Resistance
TORICH GM123M GM124M Galvanized Double Wall Bundy Tube With Zinc Coating For Automobile Brake
1. Standard
GM123M, GM124M, TS7600G, GB 11258-89
2. Steel Grade/Steel Material/Steel Number:
Low carbon steel, such as SPCC BLD BLC
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
Detailed Images
QUALITY CONTROL
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
A&Q
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us
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