B75 - Seamless Copper Tube
B75 Seamless Copper Tube is a type of seamless copper tubing made primarily of pure copper, offering excellent corrosion resistance, high thermal and electrical conductivity, and durability. Its seamless construction ensures a smooth interior and exterior, making it ideal for fluid and gas transport in various industries.
Chemical Composition
Copper UNS No. |
Type of Copper |
C10100 |
Oxygen-free without residual deoxidants |
C10200 |
Oxygen-free |
C10300 |
Oxygen-free, extra low phosphorus |
C10800 |
Oxygen-free, low phosphorus |
C12000 |
Phosphorus deoxidized, low residual phosphorus |
C12200 |
Phosphorus deoxidized, high residual phosphorus |
Physical Properties
Property |
Value |
Density |
8.94 g/cm³ (for C12200) |
Melting Point |
1083°C (1981°F) (for pure copper) |
Mechanical Properties
Property |
Value |
Tensile Strength |
Varies by temper |
Yield Strength |
Varies by temper |
Elongation |
Varies by temper |
Thermal Properties
Property |
Value |
Thermal Conductivity |
Approximately 391 W/m·K (for pure copper) |
Fabrication Properties
Property |
Characteristic |
Machinability |
Good |
Formability |
Excellent (especially in annealed condition) |
Weldability |
Good |
Brazeability |
Excellent |
Solderability |
Excellent |
Common Applications
Common applications for B75 - Seamless Copper Tube include:
- HVAC Systems: Used in air conditioning and refrigeration for its heat transfer efficiency and corrosion resistance.
- Plumbing: Employed in water supply and drainage systems due to its reliability and resistance to corrosion.
- Heat Exchangers: Suitable for heat exchanger tubes because of its thermal conductivity.
- Automotive Applications: Used in fuel and brake lines for its durability and smooth fluid flow.
- Industrial Fluid and Gas Transfer: Ideal for transporting liquids and gases in industrial systems.
- Electrical Applications: Utilized in electrical wiring, grounding, and conductor systems for its excellent electrical conductivity.
- Medical Gas Distribution: Used in healthcare facilities for the delivery of oxygen and other medical gases.
- Instrumentation: Applied in precision instruments and gauges where corrosion resistance and consistent internal diameter are crucial.
- Marine Applications: Employed in seawater piping and marine hardware exposed to corrosive environments.
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