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C12000 Copper Bar is a phosphorus-deoxidized copper material offering good corrosion resistance, thermal conductivity, and enhanced welding and brazing performance. It provides reliable fabrication characteristics for industrial applications requiring durable and efficient copper components.
Widely used in piping systems, heat exchanger components, industrial equipment, and fabricated parts requiring dependable joining performance and long-term service reliability.
C12000 copper bar (also known as DHP copper bar, Phosphorus-Deoxidized C12000 rod, or CDA 120 copper bar) is a specialized high-purity copper alloy engineered for superior weldability, excellent brazing properties, and outstanding corrosion resistance. Containing a minimum copper purity of 99.90% with a controlled phosphorus content (0.015%–0.040%), C12000 copper bar completely eliminates the risk of hydrogen embrittlement during high-temperature joining processes.
At XQJ Metal, we manufacture and export high-precision C12000 copper bars in round, square, rectangular, and hexagonal profiles. Produced in full compliance with ASTM B187, ASTM B133, and EN 13601 standards, our DHP copper bars undergo continuous extrusion and cold drawing to deliver consistent mechanical strength, smooth surface finish, and exact dimensional tolerances.
| Parameter | Standard Value / Specification |
| Material Grade | C12000 / CDA 120 / DHP (Phosphorus-Deoxidized Copper) |
| Copper Purity (Cu) | ≥ 99.90% (Phosphorus Content: 0.015% – 0.040%) |
| Electrical Conductivity | ≥ 85% IACS – 90% IACS |
| Cross-Section Shapes | Round Rod, Square Bar, Rectangular Busbar, Hexagon Bar |
| Diameter / Size Range | 3.0mm – 250mm (Custom Cutting & Shearing Available) |
| Tempers Available | Soft Annealed (O60), Half Hard (H02), Hard Drawn (H04) |
| International Standards | ASTM B187, ASTM B133, EN 13601, JIS C1220, ISO 9001 |
Q1: What is the main difference between C12000 and C11000 copper bars?
A: C12000 is Phosphorus-Deoxidized (DHP) copper containing residual phosphorus, which prevents hydrogen embrittlement during high-temperature welding or brazing. C11000 is Electrolytic Tough Pitch (ETP) copper with higher electrical conductivity (100% IACS) but is susceptible to embrittlement when heated in hydrogen environments.
Q2: Can C12000 copper bars be cold bent and machined easily?
A: Yes, in Half Hard (H02) or Soft Annealed (O60) tempers, C12000 copper bars provide exceptional ductility, making them easy to bend, thread, drill, and machine without fracturing.
Q3: What is your Minimum Order Quantity (MOQ) for custom C12000 copper bars?
A: Our standard MOQ for custom extruded or drawn C12000 bars is 300 kg. Standard warehouse sizes can be shipped in smaller trial batches immediately.
If you require specific bar dimensions, custom cutting services, or technical datasheets, explore our full range of Copper Bar Products or Contact Our Sales Engineering Team directly for a fast factory quotation.
Our materials support a wide range of construction and infrastructure projects
C12000 copper bar is a phosphorus-deoxidized copper alloy with good electrical conductivity and excellent corrosion resistance, while C12200 contains a higher phosphorus content and is more commonly selected for applications requiring extensive welding or brazing. The appropriate grade should be selected according to the fabrication process and service requirements.
Phosphorus deoxidation reduces residual oxygen in the copper, improving resistance to hydrogen embrittlement and enhancing reliability during welding, brazing, and high-temperature processing. This makes C12000 copper bar suitable for demanding industrial applications.
C12000 copper bar is widely used for machined fittings, valves, electrical hardware, heat transfer equipment, and industrial components that require a combination of good conductivity, corrosion resistance, and dependable fabrication performance.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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