Copper Coated Bundy Tube is a type of steel tubing, typically made from low-carbon steel, coated with a layer of copper. The term "Bundy Tube" originates from the Bundy Corporation, known for manufacturing durable automotive tubing. The copper coating is applied to enhance specific properties while maintaining the structural benefits of steel. Copper Coated Bundy Tube is a versatile solution offering a balance of strength, corrosion resistance, and ease of installation, making it ideal for automotive, refrigeration, and industrial applications where these attributes are paramount.
A copper brazed double wall carbon steel tube is a specialized type of tubing used in applications requiring high strength, durability, and resistance to corrosion or pressure. It is commonly used in industries such as HVAC (heating, ventilation, and air conditioning), refrigeration, and automotive systems. The tube consists of two layers (walls) of carbon steel, providing enhanced strength and durability. The two layers of carbon steel are joined together using a copper brazing process. Copper brazing involves melting a copper alloy filler material between the two steel layers, creating a strong, leak-proof bond. This process ensures excellent thermal conductivity and corrosion resistance. The base material is carbon steel, which provides high tensile strength and durability. Carbon steel is cost-effective and widely used in industrial applications.
Key Characteristics:
Strength and Durability: The steel core provides high tensile strength, making it suitable for high-pressure applications.
Corrosion Resistance: The copper layer protects against rust and environmental degradation, especially in moisture-prone environments.
Thermal and Electrical Conductivity: Copper improves heat dissipation and electrical conductivity compared to bare steel.
Advantages:
1.High strength and durability due to double-wall construction.
2.Excellent thermal conductivity from the copper brazing layer.
3.Leak-proof and reliable performance under high pressure.
4.Cost-effective compared to fully copper or stainless steel tubes.
Manufacturing Process:
The copper coating is typically applied via electroplating or cladding, creating a thin, adherent layer. This process ensures the steel retains its structural integrity while gaining copper's beneficial surface properties.
Size Chart:
| Nominal OD | Outside Diameter | Wall Thickness | |||
| INCH | MM | MM | Tolerance(±) | MM | Tolerance(±) |
| 3/16 | 4.76 | 4.78 | 0.08 | 0.71 | 0.08 |
| 1/4 | 6.35 | 6.35 | 0.08 | 0.71 | 0.08 |
| 5/16 | 8 | 7.92 | 0.08 | 0.71 | 0.08 |
| 3/8 | 9.52 | 9.53 | 0.08 | 0.71 | 0.08 |
| 1/2 | 12.7 | 12.7 | 0.1 | 0.89 | 0.09 |
Applications:
Automotive Industry: Used in brake and fuel lines where corrosion resistance and durability are critical.
Refrigeration and HVAC: Facilitates easy brazing with copper components, leveraging copper's compatibility with standard joining techniques.
Industrial Uses: Employed in environments requiring both strength and corrosion resistance, such as chemical processing or electrical grounding systems.
Copper products that GNEE can provide
|
High quality 99.9% pure copper pipe / straight copper tube / copper alloy pipe |
|||
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Round,Square,Rectangular,etc. |
||
|
Specifications |
Round:wall thickness:0.2mm~120mm,outside diameter:2mm~910mm
Square:wall thickness:0.2mm~120mm,size:2mm*2mm~1016mm*1016mm Rectangularwall thickness:0.2mm~120mm,size:2mm*4mm~1016mm*1219mm |
||
|
Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
||
|
Application |
Copper pipe is the first choice of residential housing water pipes, heating, cooling pipes |
||
|
Straight copper rod/copper round bar |
|||
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Round,Square,Rectangular,etc. |
||
|
Specifications |
Diameter:3~200mm |
||
|
Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
||
|
Application |
A copper rod is a type of colored metal processing bar stock with high electrical conductivity. It is mainly divided into brass |
||
|
Size |
Width: 10mm to 2000mm, |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
||
|
Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
||
|
Package |
Plastic film with Wooden case or wooden pallet |
||
|
Delivery time |
Prompt delivery or upon your order quantity. |
||
|
Quality Control |
Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable. |
||
|
Application |
widely used inair conditioners,refrigerators,electric,solar water heater, polished pipe an be used in decorative,such as stair |
||
|
Shape |
Round, Square, Oval, can be customized |
||
|
Item |
Copper Wire |
||
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Round |
||
|
Specifications |
As required. |
||
|
Length |
As required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Application |
Copper wire, as a conductive material, is widely used in power transmission and electronic devices. Transformers, inductors, |
||
Copper CNC machined parts
|
Custom CNC Machining Parts of Most Materials
|
||||
|
Quotation
|
According to your drawing(size, material, thickness, processing content, and required technology, etc)
|
|||
|
Materials Avaiable
|
Brass,Stainless Steel,Q235&Q345 steel, Zinc-plate Sheet,Stainless Steel, Aluminum,Copper, etc.
|
|||
|
Surface Treatment
|
Zinc Plating, chrome plate, powder coating, anodizing, wire drawing, silk-screen printing, etc
|
|||
|
Processing
|
Laser Cutting, Precision Stamping, CNC Bending, CNC Milling, CNC Turning, Threading, Riveting, Drilling, CNC Punching,Die Casting, Laser Welding, etc.
|
|||
|
Testing Equipment
|
CMM/Tool microscope/multi-joint arm/Automatic height gauge/Manual height gauge/Dial gauge/Roughness measurement
|
|||
|
Drawing Formats
|
PRO/E, Auto CAD, Solid Works , UG, CAD / CAM / CAE, PDF
|
|||
|
Our Advantages
|
1.) 24 hours online service & Quickly Quote/Delivery.
2.) 100% QC quality inspection before delivery, and can provide quality inspection form.
3.) 18+ years of experience in the CNC machining area and have a senior design team to offer perfect modification suggestions. |
|||
|
Tolerance丨Surface Roughness
|
Generally +/-0.1-0.2mm
|
|||
|
Sample service
|
Avaliable before bulk order. Samples charge according your design, The sample fee can be used as the payment for mass goods.
|
|||
About Us
Founded in 2008, we specialize in exporting premium copper products. Our manufacturing leverages continuous casting lines and precision drawing machines. Rigorous quality control, including eddy current testing and spectrometer analysis, guarantees the superior performance of our copper tubes and coils for global applications.
If you need any help, please contact us immediately!
Email address：sales@gneemetal.com
Square Meters Built
Enterprise Employees
Cooperating Partner
Years Experience
