What is C12000 copper?
Pure copper has high electrical and thermal conductivity. Alloys can be freely formed by copper. UNS C12000 copper has 95% IACS conductivity, low residual phosphorus, and high embrittlement resistance. It is available in the form of rod, tube, and wire.
We provide TP1/C12000 copper pipes
Inquire about C12000 Tube Pricing & Samples
Chemical Composition
The chemical composition of UNS C12000 copper is outlined in the following table.
| Element | Content (%) |
|---|---|
| Cu | 99.9 |
| P | 0.008 |
Physical Properties
The physical properties of UNS C12000 copper are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.89 g/cm3 | 0.321 lb/in3 |
| Melting point | 1083°C | 1981°F |
Mechanical Properties
The following table shows mechanical properties of UNS C12000 copper.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 221 - 393 MPa | 32100 - 57000 psi |
| Tensile strength, yield (depending on temper) | 69.0 - 365 MPa | 10000 - 52900 psi |
| Elongation at break ( in 101.6 mm (4 in.)) | 55% | 55% |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 117 GPa | 16970 ksi |
Other Designations
Other designations that are equivalent to UNS C12000 copper are listed in the following table.
| ASME SB111 | ASTM B152 | ASTM B359 | ASTM B506 | ASTM B716 |
| ASME SB133 | ASTM B187 | ASTM B372 | ASTM B623 | ASTM B743 |
| ASME SB359 | ASTM B188 | ASTM B395 | ASTM B638 | ASTM B75 |
| ASME SB395 | ASTM B224 | ASTM B42 | ASTM B640 | ASTM B88 |
| ASME SB42 | ASTM B272 | ASTM B442 | ASTM B641 | MIL B-18907 |
| ASME SB75 | ASTM B280 | ASTM B447 | ASTM B68 | MIL B-20292 |
| ASTM B111 | ASTM B302 | ASTM B451 | ASTM B687 | MIL T-24107 |
| ASTM B133 | ASTM B306 | ASTM B5 | ASTM B698 | MIL T-3235 |
| SAE J463 | MIL W-85 | SAE J461 |
Fabrication and Heat Treatment
Welding
Brazing, gas shielded arc welding, oxyacetylene welding, soldering, and butt welding are the methods used for welding UNS C12000 copper. It is suggested that seam welding, coated metal arc welding, and spot welding are not used for welding this alloy.
Forging
Forging of UNS C12000 copper can be performed at a temperature of about 760 to 871°C (1400 to 1600°F). This alloy has good forgeability.
Hot Working
UNS C12000 copper has excellent hot working capacity.
Cold Working
UNS C12000 copper has good excellent cold working capacity.
Annealing
Annealing of UNS C12000 copper can be performed at 372 to 649°C (700 to 1200°F).
Equivalent Grades Table for C12000 Copper
| Standard System | Equivalent Grade | Name / Description |
|---|---|---|
| UNS (USA) | C12000 | The defining standard. Phosphorus-deoxidized copper. |
| ASTM (USA) | B152, B124 | Specification standards for sheet/strip and rod/bar forms. |
| CDA (USA) | Alloy 120 | Copper Development Association designation. |
| Common Name | DHP Copper | Deoxidized High Phosphorus - the universal industry name. |
| EN (Europe) | Cu-DHP | Modern European designation (EN 1652, 12449). |
| ISO | Cu-DHP | International Standard (ISO 431). |
| JIS (Japan) | C1201 | The direct Japanese equivalent. |
| BS (UK - Old) | C106 | Former British Standard for tubes (BS 2875). |
| China GB | TP2 | The closest functional Chinese equivalent. Phosphorus-deoxidized copper for tubes/pipes. |
Check Today's Stock & Lead Time
Dimensional Range Table
In plumbing and HVAC standards, copper tubing is commonly classified into three main types based on wall thickness: Type K, Type L, and Type M.
Type K: Has the thickest wall. It is the strongest and most durable, primarily used for underground burial, high-pressure applications, and where the highest level of protection is required.
Type L: Has a medium wall thickness. It is the most common and versatile type, widely used for residential and commercial water supply lines (hot and cold) and for many HVAC applications.
Type M: Has the thinnest wall. It is suitable for above-ground, low-pressure residential water supply lines and some drainage applications, offering a cost-effective solution where conditions allow.
The outside diameter (OD) is the same for all three types within a given nominal size. The difference lies in the inner diameter (ID), which decreases as the wall gets thicker.
| Nominal Size (inches) | Type K | Type L | Type M |
|---|---|---|---|
| Outside Diameter (OD) | Same for all types | ||
| Wall Thickness | Thickest | Medium | Thinnest |
| Inside Diameter (ID) | Smallest | Medium | Largest |
| 1/2" | OD: 0.625" ID: 0.527" Wall: 0.049" |
OD: 0.625" ID: 0.545" Wall: 0.040" |
OD: 0.625" ID: 0.569" Wall: 0.028" |
| 3/4" | OD: 0.875" ID: 0.745" Wall: 0.065" |
OD: 0.875" ID: 0.785" Wall: 0.045" |
OD: 0.875" ID: 0.811" Wall: 0.032" |
| 1" | OD: 1.125" ID: 0.995" Wall: 0.065" |
OD: 1.125" ID: 1.025" Wall: 0.050" |
OD: 1.125" ID: 1.055" Wall: 0.035" |
Our factory
We provide a full range of copper products-rods, tubes, plates, bars, wires, and strips-tailored to international specifications including ASTM, BS, and JIS. Our manufacturing capabilities feature horizontal continuous casting for large-diameter bars, rotary piercing mills for high-precision tubes, and multi-roll finishing mills for ultra-thin strips. To ensure superior quality, we implement comprehensive testing protocols: chemical analysis via XRF, mechanical property verification on universal testing machines, and non-destructive testing (ultrasonic and eddy current) for internal and surface integrity. With integrated production, rigorous inspection, and flexible customization, we deliver high-performance copper materials for electrical, HVAC, machinery, and construction industries worldwide.
Get Fast Quote & Logistics Plan
