Brazed Double Wall Steel Tube 3.16×0.5mm ASTM A254-97 DC04 Copper-Coated Bundy Tube for Compressors
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
10days
Brand:
Joyruns
Product Description
Brazed Double Wall Steel Tube Overview
Copper brazed double-wall steel tube manufactured from steel strip copper-plated on both sides, designed for demanding applications in automotive, refrigeration, and hydraulic systems.
Key Specifications
- Material: ASTM A254-97 DC04 round steel
- Dimensions: 3.16mm outer diameter × 0.5mm wall thickness
- Construction: Double-wall copper-coated Bundy tube
- Primary Application: Compressor systems
Manufacturing Process
Double-wall tubing is produced by roll forming copper-coated carbon steel strip into a double-wrapped tubular shape, then passed through a controlled atmosphere brazing furnace where it is fused together to create a sealed tube.
Performance Advantages
- Exceptional vibration and fatigue resistance
- High dimensional accuracy and strength
- Superior inside cleanliness
- Excellent safety against pressure
- 720-degree seamless construction
Double Wall vs Single Wall Comparison
| Feature | Double Wall (TDW) | Single Wall (TSW) |
|---|---|---|
| Welding Technique | Copper brazing | High-frequency ERW |
| Seam Type | 720 Degree seamless | Straight-line seamed |
| Strength | Mostly made hard | Can be soft or hard |
| Vibration Resistance | Strong | Poor |
| Safety against Pressure | High | Low |
| Primary Applications | Automobile brake lines, fuel lines, transmission cooler lines, power steering lines, hydraulic pipes | AC, refrigeration, heat exchangers, automobile fuel lines, compressors |
Surface Coating Options
- Double Wall: Copper coating
- Single Wall: Copper, Zinc, GALFAN options
- Additional coatings available: NyAl, NyZinc, NyGal, PVF
- Polypropylene jacket for abrasion resistance
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