Double wall copper brazed steel tube

Product name:Double wall copper brazed steel tube

Standard:SAEJ527/Ford standard/GM standard/Jingda standard

out diameter:  4.76mm-12mm

wall thickness:0.7mm,1.0mm

length:cut to length or coil tube

tensile strength:≥290Mpa

elongation:≥25%

Inside surface cleanliness:≤0.16G/㎡

Corrosion resistance:3000 hours without red rust after salt spray test

Material:Low carbon steel

Packing:coils or bundles,then in pallets or wooden boxes

MOQ: ≥ 1 ton(about 15000 meters)

  Double wall copper brazed steel tubing, also know as Bundy tube or Bundyweld tube, is the economical alternative to seamless tube. It has many of the same qualities as seamless tubing and is suitable for most high pressure applications.  

  The Bundyweld tubes are made from low carbon steel strips (grade BHG2) which is manufactured by Bao Steel Group. The chemical compositions are as following:  

Tube Application：

• 1.Automotive Hydraulic Brake Lines
• 2.Automotive Power Steering Lines
• 3.Other Heat Exchanging Equipement
  
• 4.Other Fluid Transmission

Inspection：

1. 1.Eddy Current (Non-Destructive) & Visual Inspection
2. 2.Flattening & Bending Test
3. 3.Expansion & Flaring Test
4. 4.Tension Test
5. 5.Inside Surface Cleanliness Test
6. 6.Pressure Proof Test