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Cr–Zr copper

C18150 Chromium-Zirconium Copper

A common starting point where a practical balance of electrical conductivity, strength and heat resistance is required.

MIG contact tipsWelding electrodesCurrent transferPrice on request
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C18150 Chromium-Zirconium Copper

Catalogue material image.

Reference values: Brochure example: conductivity 80% IACS and thermal conductivity 322 W/(m·K).

Technical data

Chemical composition

CuBalance
Cr0.5–1.5 wt%
Zr0.02–0.20 wt%
Fe≤0.1 wt%
Si≤0.1 wt%

Physical properties

PropertySI
Density8.90 g/cm³
Electrical conductivity80 % IACS
Thermal conductivity322 W/(m·K)
Melting point1080 °C
Linear thermal expansion17.3 µm/(m·°C)
Elastic modulus117 GPa

Mechanical properties by condition

Applicable only to the listed diameter and condition. UTS: ultimate tensile strength; YS: yield strength.

ConditionDiameter (mm)UTS (MPa)YS (MPa)Elongation (%)Hardness
R510Ø7–20≥510≥480≥8≥83 HRB
R400Ø20–100≥400≥300≥13≥75 HRB

Product forms

Round bars, Blocks

Made to order / stock on inquiry · Price on request

Typical applications

  • MIG/MAG welding contact tips
  • Resistance welding electrode parts
  • Selected high-current connectors and contact components

Selection checklist

  • Evaluate wear, arc loading, current density and local peak temperature.
  • Specify condition and target electrical conductivity.
  • Brochure-reported properties vary with mechanical condition and section size.

Take these parameters to your enquiry

The enquiry form will carry this grade automatically.

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Cr–Zr copper

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