C11000 T2 Copper Square Bar
C11000 T2 Copper Square Bar
C11000 T2 Copper Square Bar is an electrolytic tough pitch (ETP) copper product with a minimum copper content of 99.90%. It provides approximately 100% IACS electrical conductivity in the annealed condition, making it suitable for electrical connectors, busbar components, and precision-machined conductive parts.
- Mill Test Certificate Provided
- Strict Quality Inspection
- Custom Sizes Available
- On-Time Global Delivery
C11000 T2 Copper Square Bar is produced from electrolytic tough pitch (ETP) copper, with a minimum copper content of 99.90%. C11000 offers approximately 100% IACS electrical conductivity in the annealed condition, making it suitable for electrical components requiring efficient current transmission and heat dissipation.
Square copper bars are used for busbar components, electrical connectors, grounding hardware, and precision-machined conductive parts. Their square cross-section provides flat contact surfaces and supports milling, drilling, cutting, and other fabrication processes.
C11000 copper square bars can be specified according to ASTM B187/B187M, with dimensions, temper, and tolerances selected for the intended application. C11000 and Chinese T2 designations should be verified against their respective standards. Material test certificates (MTC) and dimensional inspection records support quality verification before shipment.
Product Features
- High Copper Purity: C11000 electrolytic tough pitch (ETP) copper with a minimum copper content of 99.90%, supporting reliable electrical and thermal performance.
- Electrical Conductivity: Approximately 100% IACS in the annealed condition, suitable for electrical connectors, busbar components, and conductive hardware.
- Thermal Conductivity: Approximately 390 W/(m·K) at room temperature, supporting efficient heat transfer in electrical and thermal applications.
- Square Cross-Section: Four flat surfaces facilitate clamping, machining, positioning, and fabrication of precision copper components.
- Machining and Forming: Suitable for cutting, drilling, milling, and bending, with processing performance dependent on material temper and tooling.
- Material Standards and Inspection: ASTM B187/B187M specifications can be applied to suitable square bar products, with chemical composition, dimensions, and material condition verified through inspection and MTC documentation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | C11000 T2 Copper Square Bar |
| UNS Grade | C11000 (Electrolytic Tough Pitch Copper) |
| Chinese Grade | T2 (Comparable Grade; Verify to GB/T Requirements) |
| Applicable Standard | ASTM B187/B187M; applicable GB/T standards for T2 |
| Copper Content | Cu + Ag ≥ 99.90% (C11000) |
| Electrical Conductivity | Approximately 100% IACS (Annealed Condition, Typical) |
| Thermal Conductivity | Approximately 390 W/(m·K) at 20°C (Typical) |
| Density | Approximately 8.89 g/cm³ |
| Cross-Section | Solid Square |
| Square Size | According to Confirmed Supply Dimensions |
| Length | According to Confirmed Supply Specifications |
| Temper | Annealed or Drawn Temper, Subject to Product Specification |
| Surface Finish | Mill Finish or Machined Finish |
| Dimensional Tolerance | According to Applicable Standard and Agreed Dimensions |
| Inspection | Chemical Composition, Dimensional Inspection, Surface Inspection |
| Quality Documentation | Material Test Certificate (MTC), Where Supplied |
| Applications | Electrical Connectors, Busbar Components, Grounding Hardware, Precision-Machined Parts |
Applications
1. Electrical Connectors & Busbar Components
C11000 T2 copper square bars are used to manufacture electrical connectors, busbar joints, conductive blocks, and power distribution components. C11000 electrolytic tough pitch copper provides approximately 100% IACS electrical conductivity in the annealed condition, supporting efficient current transmission and reduced resistive losses. Square bars offer flat surfaces for drilling, milling, and preparing bolted electrical connections. Contact surface quality, conductor cross-section, joint pressure, and operating temperature must be considered when designing electrical assemblies.
2. Precision-Machined Copper Components
C11000 copper square bars are processed into precision-machined electrical parts, conductive brackets, terminal blocks, and industrial equipment components. Their square cross-section simplifies workpiece positioning and clamping during CNC milling, drilling, and cutting operations. Although pure copper has good ductility, its tendency to form continuous chips requires suitable cutting tools, lubrication, and machining parameters. Material temper, dimensional tolerance, surface finish, and component geometry should be specified according to engineering drawings and production requirements.
3. Grounding & Power Distribution Systems
C11000 T2 copper square bars are used to produce grounding connectors, bonding blocks, conductive terminals, and selected power distribution hardware. Their high electrical conductivity supports low-resistance current paths in properly designed grounding and electrical distribution assemblies. Square copper stock can be machined into components with flat contact surfaces for bolted or mechanically secured connections. Grounding performance depends on conductor dimensions, connection resistance, installation conditions, and compliance with applicable electrical codes and engineering specifications.
4. Electrical Equipment & Electrode Components
C11000 copper square bars are used to manufacture selected electrode holders, conductive support blocks, electrical contact assemblies, and equipment connection components. Their electrical and thermal conductivity helps transfer current and dissipate heat in suitable operating environments. Square bars can be cut, drilled, and machined into customized components for industrial electrical equipment. For resistance welding electrodes exposed to high contact pressure, elevated temperatures, or significant wear, higher-strength copper alloys such as CuCrZr may be more appropriate than C11000.
Frequently Asked Questions (FAQ)
1. What is C11000 T2 copper square bar?
C11000 copper square bar is a solid square-section product made from electrolytic tough pitch (ETP) copper. C11000 contains at least 99.90% copper and silver combined and is widely used in electrical and industrial applications. T2 is a Chinese copper grade with comparable applications, although the chemical composition and technical requirements of the two designations should be verified against their respective standards.
2. What is the electrical conductivity of C11000 copper square bar?
C11000 copper typically provides approximately 100% IACS electrical conductivity in the annealed condition. This makes it suitable for electrical connectors, conductive blocks, busbar components, and power distribution equipment. Actual conductivity depends on material temper, chemical composition, and processing conditions. Electrical performance requirements should be confirmed against the applicable product specification.
3. What standards apply to C11000 copper square bars?
ASTM B187/B187M is a commonly used specification for copper bus bars, rods, and shapes intended for electrical applications. C11000 square bars may be supplied to this standard when the specified dimensions, temper, and technical requirements are met. Chinese T2 material should be evaluated according to the applicable GB/T standards. Material certification should identify the actual grade and standard used for production.
4. What sizes are available for C11000 copper square bars?
C11000 copper square bars are specified by their square cross-sectional dimensions, length, temper, and dimensional tolerances. Square size is expressed as side length multiplied by side length, such as 10 × 10 mm or 20 × 20 mm. These are dimensional examples rather than confirmed stock sizes. Buyers should provide the required dimensions, quantity, and applicable tolerance standard when requesting a quotation.
5. Can C11000 copper square bars be machined or fabricated?
Yes. C11000 copper square bars can be cut, drilled, milled, and formed into electrical connectors, terminal blocks, conductive supports, and other industrial components. Their square cross-section facilitates clamping and positioning during machining. Because high-purity copper is ductile and can produce continuous chips, suitable cutting tools, lubrication, and machining parameters are important for achieving consistent surface quality and dimensional accuracy.
6. What are the main applications of C11000 copper square bars?
C11000 copper square bars are used to manufacture electrical connectors, busbar components, grounding hardware, precision-machined conductive parts, and selected electrode holders. Their electrical and thermal conductivity makes them suitable for components requiring efficient current transmission or heat transfer. For applications involving high mechanical loads, elevated temperatures, or severe wear, alternative copper alloys may be more appropriate.
7. How can buyers verify the quality of C11000 copper square bars?
Buyers should verify the material grade, chemical composition, dimensions, temper, surface condition, and applicable manufacturing standard. A material test certificate (MTC) can document relevant inspection and test results when provided with the shipment. Additional verification may include dimensional inspection, chemical analysis, and electrical conductivity testing according to the purchase specification. Inspection requirements should be agreed upon before production or shipment.
