ASTM B88 UNS C12000 Copper Tube
ASTM B88 UNS C12000 Copper Tube is manufactured from phosphorus-deoxidized copper, offering excellent corrosion resistance, good mechanical strength, and outstanding weldability. UNS C12000 copper is widely used in plumbing, HVAC, refrigeration, and industrial piping systems where reliable performance, pressure integrity, and ease of fabrication are required.
Key Features
- UNS C12000 phosphorus-deoxidized copper
- Excellent resistance to dezincification and corrosion
- Good thermal and electrical conductivity
- Superior brazing and welding characteristics
- High durability for pressure piping systems
- Long service life with low maintenance
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM / UNS | C12000 |
| EN | Cu-DHP |
| DIN | CW024A |
| JIS | C1220 |
| ISO | Cu-DHP |
ASTM B88 UNS C12000 Chemical Composition
| Element | Composition (%) |
|---|---|
| Copper (Cu) | ≥ 99.90 |
| Phosphorus (P) | 0.015 – 0.040 |
| Other Elements | ≤ 0.05 |
UNS C12000 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 210 – 250 MPa |
| Yield Strength | 70 – 95 MPa |
| Elongation | ≥ 40% |
| Hardness | 40 – 85 HB |
UNS C12000 Physical Properties
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Melting Point | ~1083°C |
| Thermal Conductivity | 330 – 340 W/m·K |
| Electrical Conductivity | ~85 – 90% IACS |
| Coefficient of Thermal Expansion | 16.5 µm/m·°C |
Types of UNS C12000 Copper Tube
- Type K Copper Tube (Heavy Wall)
- Type L Copper Tube (Medium Wall)
- Type M Copper Tube (Light Wall)
- Soft Annealed Copper Tube
- Hard Drawn Copper Tube
Applications
- Plumbing and potable water distribution
- HVAC and air-conditioning systems
- Refrigeration and condenser tubing
- Medical gas and oxygen pipelines
- Heat exchangers and industrial piping
- Fire sprinkler and pressure systems
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