What is 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
Inquire about C12000 Pricing & Samples
Our product range
| Product Category | Key Product Forms | Common Standards (Examples) | Typical Applications / Features |
|---|---|---|---|
| Copper Rods & Bars | Round Rods, Square Bars, Hexagonal Bars | ASTM B187, C11000, C10200; EN 12163-66; JIS H3250 | Electrical conductors, machined parts, connectors, hardware. Available in various tempers (soft, hard). |
| Copper Tubes & Pipes | Seamless Tubes, Straight Lengths, Coils (for flexible tubes) | ASTM B75, B280, B88; EN 12735; JIS H3300 | Plumbing, HVAC/R, heat exchangers, medical gas lines, hydraulic systems. |
| Copper Plates & Sheets | Plates (>6mm thickness), Sheets (<6mm thickness) | ASTM B152, C11000; EN 1652; JIS H3100 | Architectural cladding, industrial fabrication, grounding plates, chemical processing. |
| Copper Strips & Foils | Strips, Rolls, Precision Foils | ASTM B272, C11000; EN 1652; JIS H3100 | Electrical contacts, transformers, shielding, gaskets, decorative inlays. |
| Copper Wires | Bare Copper Wire, Stranded Wire, Busbars | ASTM B1, B3, B187; EN 13601; JIS H3260 | Windings, cables, busbars, fasteners, welding electrodes. |
Our factory
We are a specialized manufacturer of premium copper products, including rods, tubes, plates, bars, wires, and strips. Our factory strictly adheres to international standards such as ASTM, EN, JIS, and GB, ensuring material compliance for global markets. Equipped with modern production lines-including continuous casting for rods, cold drawing machines for tubes, and precision rolling mills for strips-we maintain tight control over dimensions and tolerances. Every batch undergoes rigorous in-house testing using spectrometers for chemical composition, tensile testers for mechanical properties, and eddy current testers for defect detection. Our dedicated quality lab guarantees traceable, reliable products for electrical, automotive, and engineering applications worldwide.
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