Double wall brazed tube is coated copper on the both sides of the steel strip,and brazed after coiled 720°.
Main characteristics:
1.Fine inside cleanness, high strength and nice elongation.
2.Good foundation for after-process, anti-leakage.
3.Anti-high pressure explosion and excellent anti-corrosion property after surface treatment. The tubes can be provided in coils or cut-to-length with any length according to the requirements from customers.
4.Suitable for automotive brake tube, power steering tube and so on.
Mechanical property
Item |
Standard |
Tensile strength/Mpa |
≥290 no fold, cracking or crackle |
Yield strength/Mpa |
≥200 no cracking, breaking, or other obvious flaws |
Elongation (%) |
≥25 no destructive eddy detecting, no lamilation, good welding quality for overlap. |
Flaring |
no cracking, breaking, or other obvious flaws |
Inside cleanliness |
≤0.16g/㎡ |
Size & Tolerance
Item |
OD |
Wall thickness |
1 |
4.76mm±0.05mm |
0.7mm±0.08mm |
2 |
6mm ±0.08mm |
0.7mm±0.08mm |
3 |
6.35mm±0.08mm |
0.7mm±0.08mm |
4 |
8.00mm±0.08mm |
0.7mm±0.08mm |
5 |
9.52mm±0.1mm |
0.7mm±0.08mm |
6 |
10.00 mm±0.1mm |
0.7mm±0.08mm 1.0mm±0.08mm |
7 |
12.00mm±0.1mm |
0.7mm±0.08mm 1.0mm±0.08mm |
Address: No.127 Dongfang Avenue, Jingzhou
High-tech Development Zone, Hubei
Follow Jingda
Copyright(C)2021,Jingda(Jingzhou)Automotive Co., Ltd. All Rights Reserved. Supported by Toocle 31fabu Copyright Notice 鄂公网安备 42109002000035号