Copper Alloys

High-Conductivity | Corrosion-Resistant | Precision-Processed

When your application involves electrical conductivity, thermal management, formability or corrosion resistance, copper alloys provide the performance and supply reliability your operation needs. Source 21 supplies copper alloys to manufacturers who need precise materials, responsive service and value-added processing from a single, streamlined partner.

With over 30 years of experience, ISO 9001:2015 certified quality systems, nationwide logistics capabilities and copper price management strategies, Source 21 supports purchasing, engineering and operations teams across complex copper programs. We help you secure copper materials that align with production requirements, compliance needs and delivery timelines.

Commonly Available Copper Grades

Source 21 supports a range of copper grades for different conductivity, strength, formability and machining requirements.

Oxygen-Free and High-Conductivity Copper

C101, or OFE copper, offers 99.99% purity and 101% IACS electrical conductivity.
C102 is an oxygen-free copper grade with 100% IACS conductivity. Both are commonly used when purity, conductivity and consistent performance matter, including in electrical, electronic and vacuum applications.
C110, also known as electrolytic tough pitch copper (ETP copper), offers approximately 100% IACS electrical conductivity and is widely used for bus bars, connectors, terminals and power distribution components.
C122, or DHP copper, is often used where formability, corrosion resistance and brazing performance are important.

Tellurium, Chromium and Beryllium Copper

C145 is a tellurium copper alloy, offering 93% IACS conductivity and 85% machinability, used when machinability and conductivity are both important. It can support precision components, fasteners, fittings and parts that require clean machining.
C18100 chromium copper offers strength, conductivity and thermal performance for applications such as resistance welding components, electrical contacts and high-heat industrial parts.
C17200 and C17510 are beryllium copper alloy options used when strength, fatigue resistance, electrical conductivity and spring properties are required. These materials can support aerospace, automotive, electrical and precision industrial components.

For copper sheet and plate requirements that align with ASTM B152, the specification covering copper sheet, strip, plate and rolled bar, Source 21 can help match the right grade to your application.

Copper Benefits for Manufacturing

Copper alloys are trusted across demanding industries because they combine electrical and thermal conductivity with strength, machinability and corrosion resistance. Depending on the grade, copper can support high-performance electrical components, power generation equipment, aerospace parts, automotive systems and industrial assemblies.

For engineering teams, the right grade can improve performance. For purchasing teams, Source 21 supports long-term supply programs, blanket orders, VMI, contract pricing and just-in-time delivery.

Common Forms Available

Source 21 can supply copper alloys in multiple forms, such as:

If your program requires tighter tolerances, consistent packaging or traceable material documentation, our team can help simplify material planning and production scheduling.

Common Applications for Copper Alloys

Copper alloys are used across electrical and power-generation systems, aerospace components, automotive parts, industrial equipment, turbines, EV and battery components, switchgear, transformers, data center infrastructure, electronics manufacturing and defense systems. Common copper applications include connectors, terminals, springs, contacts, bus bars, heat-transfer components, fabricated power distribution assemblies and precision-machined parts.

Electrical & Power Generation – Busbars, conductors, switchgear, connectors
Automotive – Battery terminals, heat transfer components, wiring
Aerospace – Grounding, EMI shielding, spring-loaded components
HVAC & Plumbing – Tubing, fittings, heat exchanger systems
High-Precision Machining – Electrical contacts, high-strength mechanical parts, resistance welding

Copper Plating and Coating Support

Plating is a major part of Source 21’s copper capabilities. We provide ASTM-compliant plating and coating options, including tin, silver, zinc and nickel, to improve conductivity, corrosion resistance, solderability, wear resistance and surface performance.

Plated copper is used in bus bars, connectors, terminals, contacts, power distribution components and electrical assemblies, and our plating support helps reduce vendor handoffs.

Copper Processing Capabilities

In addition to copper plating, Source 21 provides value-added processing to help streamline production and reduce lead times. Capabilities include precision slitting and cutting, custom gauges and tempers, packaging and traceability. Fabrication support is also available for copper alloy programs that require production-ready material, prepared surfaces, custom forms or scheduled release packaging.

Learn more about our special metal processing services for copper alloy programs.

Copper Price Protection and Blanket Release Programs

Our team understands how quickly market movement can affect purchasing plans. Through financial and physical hedging strategies, we can help customers manage copper price volatility and plan with more confidence.

Source 21 offers physical and financial hedging programs for qualified volume commitments, structured around LME or COMEX values depending on market conditions and program details. This approach can help protect you from future increases in copper prices while supporting consistent material availability across scheduled releases.

For purchasing teams managing long-term copper programs, this support can make budgeting, planning and production scheduling more predictable. Source 21 can help structure copper supply programs around your release schedule, volume requirements and pricing goals.

Request a Copper Alloy Quote

Get the copper material, processing support and supply reliability your operation needs. Request a quote from Source 21 today.