Qingdao Bundy Machinery Parts Co., Ltd.
Main products:CNG Tube,Brake Hose,Brake Tube,Fitting,Cooling Tube
Contact Us
  • Contact Person : Ms. Li Rebecca
  • Company Name : Qingdao Bundy Machinery Parts Co., Ltd.
  • Tel : 86-532-85676979
  • Fax : 86-532-85656319
  • Address : Shandong,Qingdao,Room 1101, Building 4, No. 123 A, Zhangzhou Er Road, Qingdao, China
  • Country/Region : China
  • Zip : 266071

bundy tube for heat exchange

bundy tube for heat exchange
Product Detailed
heat exchange bundy tube plating:copper, zinc,olive green and pvf size:4.76*0.7, 6.35*0.7, 8*0.7 mm,etc. ISO9001, TS16949

The low carbon steel brake tube is supplied in single wall and double wall(Bundy Pipe). The products conform to ASTM A-254-91, A-512-91A and ASTM A214 and A513 in material and quality. Commonly sizes we supply to the client include 4.76mm×0.7 mm,6.35 mm×0.7 mm and 8 mm×0.7 mm.

Plating:Yellow Zinc,White Zinc,Copper and PE. Package:in coils/cut-to-length Application:Hydraulic brake line tubing, brake tubing, brake pipes, fuel lines, transmission oil cooler lines, air conditioning tube, power steering, condenser, compressor, evaporator etc.

Test Item

Technical Standard

Test Result

Outer Dia

Φ4.76±0.1mm + PVF


Mechanical Property

Tensile Strength≥290Mpa


Yield Strength≥180Mpa




Wall Thickness



Flaring Test



Bending Test

Bend 180°in a Radius Three Times of the Pipe Diameter

No Crafk or Peeling After Flaring

Flattening Test

No Crack After Flattening

No Crack

Pressure Test

No Leakage when Charged with 34.3Mpa Nitrogen Gas for 1min

No Leakage

Plating Thickness



Salt Spray Test

>2500 hours

3000 hours

bundy tube for heat exchange

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