B88 - Seamless Copper Water Tube
B88 Seamless Copper Water Tube is a high-quality copper tube designed specifically for water distribution and plumbing applications. Known for its excellent corrosion resistance, durability, and smooth interior surface, it is widely used in residential, commercial, and industrial water supply systems.
Chemical Composition
Element |
Composition (%) |
Copper (Cu) + Silver (Ag) |
99.90 (min) |
Phosphorus (P) |
0.015 - 0.040 |
Physical Properties
Property |
Value |
Density |
8.94 g/cm³ |
Melting Point |
Approximately 1083°C (1981°F) |
Electrical Conductivity |
Approximately 100% IACS |
Thermal Conductivity |
Approximately 391 W/(m·K) |
Coefficient of Thermal Expansion |
Approximately 16.5 × 10⁻⁶ /K at 20°C |
Mechanical Properties
Property |
Annealed (O60) |
Light Drawn (O50) |
Tensile Strength (min) |
≥205 MPa (29,700 psi) |
≥245 MPa (35,500 psi) |
Yield Strength (annealed) |
35 MPa (5,100 psi) |
Not specified |
Yield Strength (drawn) |
69 MPa (10,000 psi) |
Not specified |
Elongation in 2 in. (50.8 mm) (min) |
≥40% |
Not specified |
Hardness (Rockwell B) |
80-90 |
Not specified |
Modulus of Elasticity |
117 GPa (17 x 10^6 psi) |
Not specified |
Poisson's Ratio |
0.33 |
Not specified |
Fatigue Strength |
53 MPa (7,690 psi) |
Not specified |
Charpy Impact Strength |
3 J |
Not specified |
Thermal Properties
Property |
Value |
Thermal Conductivity |
394 W/mK (92 Btu/ft·hr·°F at 68°F) |
Coefficient of Thermal Expansion |
17.8 × 10⁻⁶ /K (10.4 × 10⁻⁶ /°F from 68-572°F) |
Specific Heat Capacity |
0.385 J/gK (0.09 Btu/lb/°F at 68°F) |
Melting Point - Liquidus |
1027°C (1880°F) |
Melting Point - Solidus |
988°C (1810°F) |
Fabrication Properties
Property |
Characteristic |
Soldering |
Excellent |
Brazing |
Excellent |
Welding |
Good |
Bending |
Good to Excellent (depending on temper) |
Flaring |
Good |
Threading |
Not recommended (use fittings instead) |
Machining |
Good |
Forming |
Excellent (especially in annealed condition) |
Common Applications
Common applications for B88 - Seamless Copper Water Tube include:
- Plumbing Systems: Used for potable water distribution in residential and commercial buildings.
- Hot and Cold Water Lines: Ideal for both hot and cold water supply due to its thermal stability and resistance to corrosion.
- Heating Systems: Employed in radiant heating and hot water heating systems.
- HVAC Systems: Used in air conditioning and refrigeration systems for fluid transfer.
- Fire Sprinkler Systems: Applied in fire suppression systems due to its durability and pressure-handling capacity.
- Water Service Lines: Suitable for underground water service lines due to its corrosion resistance.
- Industrial Piping: Used in industrial applications where reliable water transport is required.
- Solar Heating Systems: Utilized in solar water heating systems for its excellent thermal conductivity.
- Medical Gas Systems: Applied in healthcare facilities for clean and reliable medical gas distribution.
How Can Drawn Metal Help
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