4.76MM x 0.71 IN ROLLS COPPER PLATED BUNDY TUBE-3/16" O.D, 0.71mm thickness; Single Wall; Low Carbon Steel material; ASTM A254-97 Standard
4.76MM x 0.71 IN ROLLS COPPER PLATED BUNDY TUBE-3/16″ O.D, 0.71mm thickness; Single Wall; Low Carbon Steel material; ASTM A254-97 Standard;
In rolls of 7.62m, 10m, 20m or 30m.
Brake Bundy Tube; Auto fuel/ oil fitting line; Condenser pipe for air condition; Evaporator pipe for Refrigerator. etc application
Features:
Available Covering Finishes :Copper pated, White zinc plated,Yellow zinc plated,Dark green plated,PVF..
Available Package Type :In roll,In bulk roll,In pancake,In straight or special request..
Our 4.76mm x 0.71 in rolls copper plated bundy tubes confirm to the ASTM A254-97 Standard Specificaion.It can be used for fuel lines,brake lines,oil lines of Automotive uses,cooling units of refrigeration uses and stove industries.ect.It made by rolling steel trip into the form of tubing and subsequently copper brazing in a reducing atmosphere.After a various of analysis,like heat analysis and product analysis,and through tension tensile strength,flattening,expansion,bending and pressure proof test to ensure the quality.
Two types of copper-brazed bundy tube for choice:Single Strip Type or Double Strip Type.
Dimensions and Tolerances | |||||
Nominal Tubing OD | Outside Diameter | Wall Thickness | |||
inch | mm | Basic mm | Tolerance± | Basic mm | Tolerance± |
3/16 | 4.76 | 4.78 | 0.08 | 0.71 | 0.08 |
1/4 | 6.35 | 6.35 | 0.08 | 0.71 | 0.08 |
5/16 | 8 | 7.92 | 0.08 | 0.71 | 0.08 |
3/8 | 9.52 | 9.53 | 0.08 | 0.71 | 0.08 |
1/2 | 12.7 | 12.7 | 0.1 | 0.89 | 0.09 |
Specification and Test
Test Item | Technical Standard | Test result | |||||
Mechanical Property | Tensile Strength290Mpa | 296Mpa | |||||
Yield Strength 180Mpa | 185Mpa | ||||||
Elongation20% | 30% | ||||||
Wall Thickness | 0.70+-0.1mm | 0.71mm | |||||
Flaring Test | Flaring25% | 30% | |||||
Bending Test | Bend 180°C 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 | |||||
Thickness per Surface Treatment of Copper-Plating(μm) | 3μm |