C12000 Copper Bar

C12000 Copper Bar is a phosphorus-deoxidized copper alloy bar widely used in applications that require a balance between electrical conductivity, fabrication performance, and weldability.

Compared with high-purity copper grades such as C11000 (ETP Copper), C12000 copper bar contains a controlled amount of phosphorus, which helps reduce oxygen content during production. This makes the material less sensitive to hydrogen embrittlement and more suitable for brazing, welding, and thermal processing applications.

In actual purchasing, customers choosing C12000 Copper Bar are often not only looking for conductivity. Many buyers are also concerned about:

• Whether the copper bar machines cleanly
• Whether the material performs well after brazing or joining
• Dimensional consistency for machining parts
• Surface quality and straightness

For this reason, C12000 copper bar is commonly selected for electrical connectors, copper fittings, industrial components, plumbing parts, and machined copper products.

 

Product Details

 

Why Some Buyers Choose C12000 Instead of C11000

 

In practice, C11000 copper offers slightly higher conductivity, but C12000 copper bar is often preferred where welding, brazing, or fabrication is involved.

Because oxygen content is reduced during production, C12000 is generally considered more reliable in applications where the material may experience heating or joining processes.

For customers producing copper fittings or welded assemblies, this difference can matter more than a small conductivity advantage.

 

Excellent processing adaptability

Straightness, surface quality and size uniformity are controlled in place, cutting is burr-free, and it is suitable for precision CNC machining, greatly reducing the correction process.

The flexibility of working condition adaptation is high

It can provide soft state, semi-hard state and hard state, which can not only be bent and formed, but also ensure the structural rigidity and meet the requirements of multiple machining scenes.

Balanced comprehensive use performance

The electrical conductivity is enough to meet the working conditions of electrical components, and the material processing stability is strong, giving consideration to the electrical conductivity and the reliability of mass production processing.

C12000 Copper Bar is commonly used for:

• Electrical connectors
• Conductive copper components
• Busbar accessories
• Plumbing and piping fittings
• Brazed assemblies
• Machined copper parts
• Industrial electrical equipment
• Copper fasteners and hardware

In many cases, buyers choose C12000 copper bar when fabrication and joining performance are more important than maximum conductivity.

At Jiangsu Cunrui Metal Products Co., Ltd., we supply copper alloys, stainless steel, nickel alloys, carbon steel, and engineering materials for industrial customers and export markets.

For C12000 copper bar, we understand that many customers focus on details that directly affect processing efficiency - such as straightness, cutting quality, temper condition, and dimensional tolerance - rather than only comparing prices.

Instead of only offering standard stock sizes, we support custom cutting, mixed specifications, and application-based material recommendations to better fit customer production requirements.

For export orders, we also assist with MTC documents, customized packaging, and shipment coordination, helping customers reduce procurement and logistics issues.