Copper Conductor Tubing: Outer Diameter 3-50 mm

Component Specifications

Definition

A precision-engineered copper tubing component designed specifically for induction coil applications, where it serves as the primary conductor for alternating electrical currents. This component is characterized by its high electrical conductivity, thermal dissipation properties, and structural integrity under electromagnetic forces. It is typically manufactured through extrusion or drawing processes to achieve precise dimensional tolerances and smooth surface finishes that minimize electrical resistance and eddy current losses.

Working Principle

Operates on electromagnetic induction principles where alternating current passing through the copper tubing generates a rapidly alternating magnetic field. This field induces eddy currents in conductive materials placed within the coil's influence, generating heat through Joule heating. The tubing's design maximizes current density while minimizing resistive losses and thermal buildup through efficient heat dissipation.

Materials

High-purity oxygen-free copper (C10100/C10200) with minimum 99.95% copper content, often with silver plating or tin coating for enhanced surface conductivity and oxidation resistance. May include trace elements like phosphorus for deoxidation.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bend Radius	3×OD minimum
Outer Diameter	3-50 mm
Wall Thickness	0.5-5 mm
Tensile Strength	200-350 MPa
Surface Roughness	Ra ≤ 0.8 μm
Electrical Conductivity	≥100% IACS
Maximum Operating Temperature	200°C

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 9001, ASTM B75, IEC 60228, DIN 40500

Parent Products

This component is used in the following industrial products

Induction Coil

A water-cooled copper coil that generates an alternating electromagnetic field to induce eddy currents in non-ferrous metals for heating and melting.

View Product Details

Induction Stirring Coil

Electromagnetic coil that generates alternating magnetic fields to induce eddy currents in molten metal, creating stirring motion within a vacuum induction degassing unit.

View Product Details

Engineering Analysis

Risks & Mitigation

Electrical arcing due to insulation failure
Overheating from insufficient cooling
Mechanical fatigue from vibration
Corrosion from environmental exposure
Electromagnetic interference with nearby equipment

FMEA Triads

Trigger: Insufficient cooling flow
Failure: Overheating and thermal deformation
Mitigation: Implement temperature monitoring with automatic shutdown, ensure adequate coolant flow rates, use temperature-resistant materials

Trigger: Vibration-induced stress
Failure: Fatigue cracking at connection points
Mitigation: Install vibration dampeners, use flexible connectors, implement regular inspection protocols

Trigger: Surface oxidation buildup
Failure: Increased electrical resistance and reduced efficiency
Mitigation: Apply protective coatings, maintain controlled environments, implement regular cleaning schedules

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm on diameter, ±0.05 mm on wall thickness, ±1° on bend angles

Test Method

Electrical conductivity testing per ASTM B193, dimensional verification with coordinate measuring machines, pressure testing to 1.5× operating pressure, eddy current testing for defects

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 Conductor Tubing

Manufacturer profiles associated with Copper Conductor Tubing.

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Frequently Asked Questions

Why is copper specifically used for induction coil tubing?

Copper offers the best combination of high electrical conductivity (second only to silver), excellent thermal conductivity, good mechanical workability, and reasonable cost, making it ideal for efficient energy transfer in induction applications.

How does wall thickness affect performance?

Thicker walls increase mechanical strength and current-carrying capacity but also increase material cost and weight. Thinner walls reduce skin effect losses at high frequencies but may compromise structural integrity. Optimal thickness balances electrical, thermal, and mechanical requirements.

What maintenance does copper conductor tubing require?

Regular inspection for oxidation, mechanical damage, and connection integrity; periodic cleaning to maintain surface conductivity; monitoring for signs of overheating or deformation; and replacement when conductivity degrades beyond acceptable limits.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Copper Conductor Tubing