Copper Brake Pipe Thick-walled copper 20swg Conforms to BS 2871 part 3 Conforms to CN102 Conforms to BS EN 12451.1999 100% electrically and pressure tested. Every batch is also destructively tested for tensile and burst pressure results. Residue testing to BLS.30.JC.101 is also carried out on every batch to ensure cleanliness standards are met. This high quality thick walled copper tubing is manufactured in Great Britain and specifically designed for use with brake systems. Copper pipes are more traditional and easier to work with however Copper Nickel (aka CuNI, Kunifer, cupro-nickel or NiCopp) is more resistant to corrosion and has a higher fatigue strength.We can manufacture pipes to your exact specifications.