What is C12000 copper?
C12000 copper is a copper alloy used in the manufacture of pipes. It offers excellent corrosion resistance, making it ideal for a wide range of industrial and commercial applications. C12000's high strength-to-weight ratio makes it an excellent choice for applications requiring maximum durability and flexibility. Its resistance to stress cracking also makes it suitable for water supply systems, sanitary ware, food processing equipment, and other products with extremely high service life requirements. With its lightweight construction and high-temperature resistance, C12000 copper pipes ensure reliable service in every project.
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Copper C12000 Pipes and Tubes Specification
Standard
ASTM B111 / ASTM B75 / ASTM B280 / ASTM B68 / ASME SB75 / ASME SB280
Temper
Light-drawn, Hard-drawn, Annealed
Length
1 meter-6 meter or as required
Wall Thickness
0.25mm-8mm
Outer Diameter(OD)
4mm-150mm
Copper C12000 Pipes and Tubes Chemical Composition
| Grade | Cu | Ph |
| C12000 | Including Ag | 0.004 - 0.012 |
Mechanical Property Of Copper C12000 Pipes & Tubes
| Temper | Temper Code | Tensile Strength | YS-0.5% Ext | Elongation | Rockwell B scale | Rockwell F scale | Rockwell 30T scale | Shear Strength | Fatigue Strength** | Section Size | Cold Work |
| (ksi) | (ksi) | (%) | (ksi) | (ksi) | (in) | (%) | |||||
| Hard Drawn | H80 | 55 Typ | 50 Typ | 8 Typ | 60 Typ | 95 Typ | 63 Typ | 29 Typ | 0.065 | 40 | |
| Light Drawn, Light Cold Rolled | H55 | 40 Typ | 32 Typ | 25 Typ | 35 Typ | 77 Typ | 45 Typ | 26 Typ | 0.065 | 15 | |
| Nominal Grain Size 0.025 mm | OS025 | 34 Typ | 11 Typ | 45 Typ | 45 Typ | 23 Typ | 0.065 | ||||
| Nominal Grain Size 0.050 mm | OS050 | 32 Typ | 10 Typ | 45 Typ | 40 Typ | 22 Typ | 0.065 |
Copper C12000 Pipes and Tubes Physical Property
| Density (lb / cu. in.) | Electrical Resistivity (microhm-cm (at 68 Deg F)) | Melting Point (Deg F) | Mean Coeff Thermal Expansion | Modulus of Elasticity Tension |
| 0.323 | 10.6 | 1981 | 9.4 | 17000 |
We Are Supplier To Various Application Industries Like
Instrumentation
Hydraulic & Pneumatic System
Automotive Industries
Structural Purposes
Medical
Pharmaceutical
Desalination and Wastewater Projects
Food and Pharmaceutical Processing
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 | TP1 | The closest functional Chinese equivalent. Phosphorus-deoxidized copper for tubes/pipes. |
FAQ
| What's the difference between C11000 (ETP) and C12000 (DHP)? C11000 (ETP – Electrolytic Tough Pitch) contains oxygen and may suffer from hydrogen embrittlement in reducing atmospheres. C12000 is deoxidized with phosphorus, making it suitable for brazing, welding, and high-temperature applications without embrittlement risk. |
| Can C12000 copper be welded or brazed easily? Yes, C12000 is highly weldable and brazeable due to its deoxidized nature. Autogenous welding and brazing can be performed without flux when joining copper-to-copper. |
| What are the main applications of C12000 copper tubes? It's widely used in HVAC/R (heat exchangers, condensers), plumbing, medical gas systems, industrial fluid lines, and electrical busbars. |
| Does C12000 copper corrode in water systems? It has excellent corrosion resistance in clean, non-aggressive water. However, like all copper, it can be affected by acidic water, high-velocity flow, or certain chemicals (e.g., ammonia, sulfides). |
| Is C12000 suitable for underground water lines? Yes, especially when using Type K thick-walled tubing for burial. Its corrosion resistance and strength make it a durable choice for direct burial when soil conditions are non-aggressive. |
| What standards cover C12000 copper tubes? ASTM B75 (seamless), B280 (ACR tubes), EN 12735-1, and JIS H3300 are key standards for tubing. ASTM B152 covers sheet/plate forms. |
| What tempers are available for C12000 tubing? Common tempers are annealed (soft, O60), drawn (hard, H58), and light-drawn (H55). Annealed offers maximum formability; drawn provides higher strength. |
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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.
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