PVF (Polyvinyl Fluoride) coated steel Bundy tube has been adopted for brake lines, transmission cooler lines and power steering hard tubes by auto make like Volkswagen, Mazda, Nissan, Kia, Hyundai, and many others. PVF coating of Bundy tubes typically looks dark green and nearly black. It has very good corrosion resistance. In the manufacture process, the tubes shall be firstly electro-plated with zinc , chromated to enhance the zinc plating performance, and then coated with a layer of PVF to finally isolate the metal from outside environment.
Mainly sizes are:4.76×0.70mm,6.35×0.70mm,8×0.70mm,9.53×0.70mm,10×0.70mm,12×0.70mm other size like:4.00×0.5mm,3.18×0.7mm,2.60×0.50mm is also produced according the requirements.other sizes can be achieved after discussion.
>Material:High quality low carbon strip steel
>Tensile Strength:280-370Mpa
>Yeild Strengh:180-220Mpa
>Elongation:>40%
>Hardness(HR30T):42-50
>Chemical composition:
| |
C |
Mn |
P |
S |
Si |
Al |
| (%) |
0.03-0.035 |
0.1-0.2 |
<0.02 |
<0.01 |
<0.02 |
0.02-0.05 |
The bundy steel tube has fine inside cleanness, high strength, nice elongation, good foundation for late process , anti leakage, anti high pressure explosion, excellent anti corrosion power after surface treatment. It is an ideal material for tubes of automotive industry. The tube can be provided in coils or cut to length,etc. Thickness of PVF coating may reaches: 8μm,12μm,15μm,25μm
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