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Originally Posted by Wicked_and_Crazy
secondly, brake pipes DO NOT RUST, they are made of a copper composite material however they do corode and with the high presure thats applied to them they either tend to split or perferate with pin holes.
In my opinion you should only ever get brake work carried out by a garage that also does MOT's
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Not all are copper, there are still lots of cars around with steel brake pipes.
I bought a few rolls of bake pipe a few years ago, one was from a good motor factors and the others from a Classic Car Autojumble. I was rebuilding a vehicle at the time and made new brake pipes with the expensive motor factor pipe, at the MOT the following year I disputed with the MOT tester that the pipes were badly corroded, and was then surprised when I got under to have a look myself. He had carried out the MOT the previous year and knew that just about everything had been replaced of refurbished on the vehicle. I always replace brake pipes, hoses, slave and master cylinders as a matter of course.
These pipes appeared to have a very thin coating of copper on them, and it took just 12 months for them to look very corroded. The tester did however say that some material used for brake pipes will tarnish and corrode very quickly, giving the appearance they are bad but in fact stay like that for years. He passed the vehicle but I replaced the front to back, across axle and cylinder bridge pipes straight away.