Brake Lines, Fittings & Tools

6.35mm 1/4″ .25″ OD Copper Tubing Brake Pipe Wholesale

This copper brake pipe is made of pure copper, by giant Chinese copper tube manufacturers that are ISO 9001 certified.

  • Much more flexible than steel tubing
  • Extremely easy to bend and flare
  • Meets SAE and BS EN standards
  • Suitable for ISO/DIN bubble flare,  ISO/SAE double flare (inverted flare), and single flare.


Tensile Strength40 ksi (205MPa)
Expansion40% min
Theoretical Burst Pressure8410 psi i.e. 58.0 MPa min


  1. We can also supply tubing of 0.75mm, or even thicker wall , to further increase pressure resistance.
  2. Burst pressure calculation could vary according to the stress limit applied to the formula.



Pb – Burst pressure, MPa
σb – Tensile strength, MPa  (205MPa applied)
D0 – Outside diameter, mm
δ – Wall thickness, mm


  1. Eddy Current (Non-Destructive)
  2. Flattening Test
  3. Expansion Test
  4. Tension Test
  5. Pressure Proof Test
  6. Mercurous Nitrate Test
Brake/Fuel Line Tubing Coils, Copper Brake Line Tubing Coil