Copper Core: Diameter Range 8-50 mm, Density 8.94 g/cm³

Q: What is the primary advantage of using high-purity copper cores?

High-purity copper cores provide superior electrical conductivity with minimal energy loss, excellent thermal dissipation, and enhanced corrosion resistance compared to lower-grade alternatives

Q: How does oxygen content affect copper core performance?

Controlled oxygen content (0.02-0.04%) improves hot workability and reduces hydrogen embrittlement risk while maintaining electrical conductivity

Q: What applications are suitable for this copper core component?

Power transmission cables, motor windings, transformer coils, busbars, electrical connectors, and high-frequency applications requiring minimal signal loss

Component Specifications

Definition

A precision-engineered copper core component designed for high-purity copper rod production, featuring exceptional electrical conductivity, thermal stability, and mechanical integrity for demanding electrical applications including power transmission, motor windings, and transformer manufacturing

Working Principle

Utilizes copper's inherent high electrical conductivity (approximately 5.96×10⁷ S/m at 20°C) and low resistivity to minimize energy loss during electrical current transmission, while maintaining structural stability through controlled grain structure and purity levels

Materials

Electrolytic Tough Pitch (ETP) Copper C11000 with minimum 99.90% Cu content, oxygen content 0.02-0.04%, with trace elements controlled to: Pb<0.005%, Fe<0.005%, S<0.004%

Technical Parameters

Parameter	Typical range	Notes & selection driver
Density	8.94 g/cm³
Elongation	≥35%
Conductivity	≥101% IACS
Melting Point	1083°C
Diameter Range	8-50 mm
Tensile Strength	200-250 MPa
Surface Roughness	Ra ≤ 0.8 μm
Dimensional Tolerance	±0.1 mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 431, DIN 1787, ASTM B49, IEC 60228

Parent Products

This component is used in the following industrial products

High-Purity Copper Rod for Electrical Applications

High-purity copper rod is a semi-finished industrial material produced through continuous casting and rolling processes.

View Product Details

Copper Rods

Solid cylindrical copper bars used as raw material for manufacturing various metal products.

View Product Details

Engineering Analysis

Risks & Mitigation

Copper theft due to high scrap value
Oxidation during storage
Work hardening during processing
Thermal expansion mismatch in composite assemblies

FMEA Triads

Trigger: Impurity contamination during manufacturing
Failure: Reduced electrical conductivity and increased resistivity
Mitigation: Implement strict material traceability and purity verification protocols

Trigger: Improper annealing temperature control
Failure: Grain growth affecting mechanical properties
Mitigation: Automated temperature monitoring with ±5°C precision

Trigger: Surface oxidation during storage
Failure: Increased contact resistance and poor solderability
Mitigation: Nitrogen atmosphere storage and anti-tarnish coatings

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Diameter: ±0.1mm, Ovality: ≤0.05mm, Straightness: ≤1mm/m

Test Method

Electrical conductivity: Four-point probe method per ASTM B193, Mechanical properties: Tensile testing per ISO 6892-1, Chemical composition: Optical emission spectroscopy per ASTM E415

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Copper Core

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

EFPCB

Guangdong, CN

Also makes: Multilayer PCB, Printed Circuit Board (PCB), Rf Pcb and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

View profile Send enquiry

ULIKE CIRCUIT

Guangdong, CN

Also makes: Control Circuit Board, Rf Pcb, Metal Core PCB and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Refractory Liner

Refractory liner for molten metal flow control valves, providing thermal insulation and erosion resistance in extreme temperature applications.

Work Rolls

Work rolls are precision cylindrical components in heavy-duty rolling mills that directly contact and deform metal during rolling operations.

Venting Channels

Venting channels are precision-engineered passages in metal casting mold cores designed to allow gases to escape during the molten metal pouring process, preventing defects and ensuring high-quality castings.

Aluminum Matrix

Aluminum matrix is the continuous metallic phase in aluminum matrix composites, providing structural integrity and thermal/electrical conductivity in hot-forged aluminum alloy billets.

Frequently Asked Questions

What is the primary advantage of using high-purity copper cores?