Zinc Coated Steel Bundy Tube EN10305-1 DC04 Double Wall Brazed for Compressor and Automotive Applications
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
10days
Brand:
Joyruns
Product Description
Brazed Double Wall Zinc-Coated Bundy Tube
This double-wall brazed steel tubing features copper coating on both inside and outside surfaces, providing excellent vibration resistance and high-pressure performance for compressor applications and automotive systems.
Manufacturing Process
Double-wall brazed steel tube is manufactured using steel sheets copper-coated on both sides. The formed tube undergoes controlled atmosphere brazing to create a sealed, high-strength structure with 720-degree seamless construction.
Key Advantages
- High dimensional accuracy and mechanical properties
- Clean inside surface for optimal fluid flow
- Excellent vibration and fatigue resistance
- Superior safety against high pressure applications
- Economical alternative to seamless tubing
Compliance Standards
Our Bundy tubes meet international standards including China YB/T 4164, US ASTM A254 and SAE J527, Japan JASO M101, Russia GOST 11249, and India IS 8119.
Applications
- Automotive hydraulic brake lines
- Automotive power steering lines
- ACR coolant transmission lines
- Heat exchanging equipment
- Fluid transmission systems
Quality Inspection
- Eddy current and visual inspection
- Flattening and bending tests
- Expansion and flaring tests
- Tension testing
- Inside surface cleanliness testing
- Pressure proof testing
Technical Comparison: Single vs Double Wall
| Feature | Double Wall (TDW) | Single Wall (TSW) |
|---|---|---|
| Welding Technique | Copper brazing | High-frequency ERW |
| Seam Construction | 720 Degree seamless | Straight-line seamed |
| Strength | Mostly made hard | Can be soft or hard |
| Inside Cleanliness | Good | Poor |
| Vibration Resistance | Strong | Poor |
| Safety against Pressure | High | Low |
| Surface Coating | Copper, Zinc, GALFAN | Copper, Zinc |
Product Images
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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