Changzhou Joyruns Steel Tube CO.,LTD
                                                                                                           
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BHG2 Double Wall Steel Tube ASTM A254-97 4mm x 0.6mm Copper Coated Bundy Pipe with 34.3 MPa Pressure Rating

Price Negotiable
Price: Negotiable
MOQ: 2Tons
Delivery Time: 10days
Brand: Joyruns
Product Description
Product Overview

BHG2 Double Wall Steel Tube manufactured to ASTM A254-97 standard, featuring 4mm outer diameter with 0.6mm wall thickness and copper-coated surface for enhanced performance in demanding applications.

Key Features & Benefits
  • High pressure resistance with guaranteed pressure rating of 34.3 MPa
  • Superior vibration fatigue strength for automotive applications
  • Excellent solderability and workability for easy installation
  • Enhanced bendability with 180° bending capability
  • Copper-coated surface for improved corrosion resistance
  • Full traceability for quality assurance
Technical Specifications
Dimensions & Pressure Ratings
Nominal Diameter (mm) Outer Diameter (mm) Wall Thickness (mm) Guarantee Pressure (MPa) Burst Pressure (MPa)
4 4 ±0.08 0.7 ±0.08 34.3 108
4.76 4.76 ±0.08 0.7 ±0.08 34.3 108
6.35 6.35 ±0.08 0.7 ±0.08 34.3 83.3
8 8 ±0.1 0.7 ±0.1 24.5 66.2
10 10 ±0.1 0.7 ±0.1 24.5 53.9
Quality Test Results
Test Item Technical Standard Test Result
Mechanical Property Tensile Strength 290MPa
Yield Strength 180MPa
Elongation 20%
296MPa
185MPa
30%
Wall Thickness 0.70 ±0.1mm 0.71mm
Flaring Test Flaring 25% 30%
Bending Test Bend 180° in Radius Three Times of Pipe Diameter No Crack 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
Coating Thickness Galvanize: 9μm
Copper-Plating: 3μm
Meets Specifications
Manufacturing Process

Double Walled Steel Tubing is manufactured from electrolytic copper-coated steel strip wound into a continuous tubular with double-layered wall, then copper brazed in a special furnace using the coated copper as filler metal.

Production Line Images
BHG2 double wall steel tube production line equipment
Copper-coated steel tube manufacturing process
Double wall brazed steel tube quality inspection
Finished double wall steel tube products
Packaging & Applications

Ideal for automotive brake tubing, power steering systems, and other pressure-critical applications requiring reliability and superior processing characteristics.

Packaging Images
Professional packaging for double wall steel tubes
Bundled double wall copper-coated steel tubes ready for shipment

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changzhou Joyruns Steel Tube CO.,LTD
Location No.143 Qingyang North road,Tianning district. Changzhou
Contact Person Lee

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