Changzhou Joyruns Steel Tube CO.,LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 1500Tons/Month |
| Delivery Time | 10days |
| Packaging Details | wooden box packing, pallet packing |
| Surface | Copper Coated/zinc coated |
| Thickness | 0.5mm-1.0mm |
| Technique | ERW |
| Outer diameter(round) | 3.16 - 10 mm |
| Material | DC04, SPCC, BHG1, BHG2 |
| Product name | Bundy Tube |
| Brand Name | Joyruns |
| Model Number | 3.16*0.5,4.76*0.5,4.76*0.6, 4.76*0.7, 6*0.6, 6*0.7, |
| Certification | ISO9001,ROHS |
| Place of Origin | Changzhou |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1500Tons/Month |
| Delivery Time | 10days | Packaging Details | wooden box packing, pallet packing |
| Surface | Copper Coated/zinc coated | Thickness | 0.5mm-1.0mm |
| Technique | ERW | Outer diameter(round) | 3.16 - 10 mm |
| Material | DC04, SPCC, BHG1, BHG2 | Product name | Bundy Tube |
| Brand Name | Joyruns | Model Number | 3.16*0.5,4.76*0.5,4.76*0.6, 4.76*0.7, 6*0.6, 6*0.7, |
| Certification | ISO9001,ROHS | Place of Origin | Changzhou |
| High Light | 3.16*0.5mm Steel Bundy Tube ，1.0mm Steel Bundy Tube ，DC04 Thinnest Copper Pipe | ||
EN10305-1 Brazed Double Wall copper-coated Bundy tube used for Compressor
Double Walled Steel Tubing is a steel tube for pressure piping, which is manufactured from electrolytic copper-coated steel strip (both surfaces). The strip is wound into a continuous tubular with a double-layered wall and then copper brazed in a special furnace using the coated copper as filler metal.
The tube possesses higher withstanding pressure and higher vibration fatigue strength. Furthermore, the tube is also equipped with superior properties such as solderability, traceability, bendability, and workability in end terminal preparation. As a pressure tubing material with extensive reliability and good processing characteristics, this tube is used for several purposes, such as brake tubing, the power steering on vehicles, and many more.
Brazed Double Wall Tubing
Double-wall tubing is produced by roll forming copper-coated carbon steel strip into a double wrapped tubular shape as shown in the cross-sectional diagram. The formed tube is passed through a controlled atmosphere brazing furnace where it is fused together to produce a sealed tube. Double-wall tubing is ideally suited for use in applications that are subject to high levels of vibration and fatigue, such as household and commercial refrigeration compressors.
Single-Wall Steel Tubing with the same coating range as double-wall tubing but with the addition of a nickel-coated internal diameter to withstand the corrosive environment created by modern-day fuels.
Single & Double Wall Steel Tubing Bundy tubes that can be combined with an extensive range of corrosion- and abrasion-prevention coatings such as NyAl (aluminum and polyamide coating), NyZinc (zinc and polyamide coating), NyGal (Galfan and polyamide coating), PVF and many others. These tubes can also be provided with a polypropylene jacket to provide outstanding abrasion resistance.
Single and Double Wall Bundy Tubes
| Type | Double Wall (TDW) | Single Wall (TSW) |
| Welding Technique | Copper brazing | High-frequency ERW |
| Resizing Method | Cold drawn | Cold drawn |
| Seam | 720 Degree seamless | Straight-line seamed |
| Dimensional Accuracy | High | High |
| Strength | Mostly made hard | Can be soft or hard |
| Inside Cleanliness | Good | Poor |
| Vibration Resistance | Strong | Poor |
| Safety against Pressure | High | Low |
| Application | Automobile brake lines, fuel lines, transmission cooler lines, power steering lines; certain hydraulic pipes, etc; | AC, refrigeration, heat exchangers, automobile fuel lines; compressors, etc; |
| Original Surface | Copper | None (steel) |
| Surface Coating | Copper Zinc GALFAN |
Copper Zinc |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Seller
Year Established:
2000
Total Annual:
10000000-20000000
Employee Number:
150~300
Ecer Certification：
Verified Supplier
Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur... Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur...
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