Double Wall PVF Coated Bundy Low Carbon Steel Tube

Product Description

Bundy Tube Bundy Pipe PVF Coated Bundy Tubes

Copper brazed double wall steel tube is made of steel strips which is copper plated on both sides.It has widely applied for automobiles,refrigerators and the other hydraulic system industries.

Dimension and specification

Tolerance

O.D. and W.T. +/-0.08mm

Chemical Composition

C ≤ 0.12%

Mn ≤ 0.50%

P≤ 0.04%

S≤ 0.045%

Mechanical properties

Tensile strength ≥30kgf/mm2

Yield point ≥18kgf/mm2

Elongation(50mm)≥25%

Hardness(HR30T)≤ 65

Expand test Take 3 samples of 200mm,expand the pipe outside dimension to larger than 25%

Internal cleanliness Particle and oil ＜0.194g/m2