Double Wall Copper Brazed Steel Tubing , BHG2 Bundy Tube For Automotive Brake Lines

Double Wall Copper Brazed Steel Tubing , BHG2 Bundy Tube For Automotive Brake Lines

Bundy Tube, also known as Bundy Tubing or Copper Brazed Steel Tube, is a specialized type of double-walled (or occasionally single-walled) steel tubing manufactured by roll-forming a low-carbon steel strip into a tubular shape, then copper brazing the seam and, in the case of double-wall, the layers together. The BHG2 refers to a specific grade and temper standard (often aligned with automotive or hydraulic requirements) indicating the steel's chemical composition, mechanical properties, and the quality of the copper braze joint. It is widely recognized as the industry standard for fluid and gas conveyance in space-constrained, high-integrity systems. YUHONG GROUP specializes in copper brazed alloy steel tube(bundy tubes) for many years. Our bundy tubes are widely used in automotive brake lines and other auto parts.

Mechanical Properties – BHG2 Bundy Tube:

Regular Sizes (Outer Diameter, Wall Thickness, Length per Piece):

Key Advantages & Features of BHG2 Bundy Tube:

• Leak-Proof Integrity (Double Wall)
• Exceptional Corrosion Resistance
• High Burst Strength
• Excellent Formability
• Good Thermal Conductivity
• Solderable & Brazeable
• Smooth Internal Surface
• Cost-Effective

Different Applications of Bundy Tubes:

• Automotive
• Brake lines (hydraulic & pneumatic)
• Fuel lines (low-pressure, return, and vapor lines)
• Transmission oil cooler lines
• Power steering return lines
• Air conditioning refrigerant lines (connectors)
• Instrumentation air lines
• Lubrication lines
• Low-pressure hydraulic return lines
• Pneumatic control tubing
• Refrigeration & HVAC
• Gas stove & oven supply lines
• Water purifier tubing
• Medical gas lines