MITSUBISHI MATERIALSCopper & Copper Alloy Business

MITSUBISHI MATERIALSCopper & Copper Alloy Business

Japanese

Products information

15ZCCu-Zr alloy

Standard No.
CDA
C15000

A copper alloy with electrical conductivity close to that of oxygen-free copper, featuring high strength and excellent heat resistance.

Positioning of Alloy

A copper alloy with electrical conductivity close to that of oxygen-free copper, featuring high strength and excellent heat resistance. It is used in high-voltage relays, high-voltage terminals, and welding tips.

Main features

  1. Excellent electric and thermal conductivity (conductivity%, IACS average)
  2. High strength as compared with pure copper
  3. Excellent heat resistance

Main applications

high-voltage relays, high-voltage terminals, welding tips

Chemical composition

The chemical components of 15ZC are as follows.

(Weight %)

Zr Cu
0.15 Rem.
* Including inevitable impurities and trace additive elements

Physical properties

The physical properties of 15ZC are as follows.

Property Representative Value
Specific Gravity (293K) 8.9
Coefficient of Thermal Expansion
(×10-6/K:293~573K)
17.7
Thermal Conductivity
(W/(m・K):293K)
340
Volume Resistivity
(μΩm:293K)
0.019
Electrical Conductivity
(%IACS:293K)
93

The numerical values are representative and may vary depending on the tempering process.

Mechanical properties

Mechanical properties of 15ZC are as follows.

Temper Rods
TMT
Tensile Strength
(N/mm2)
400
Elongation
(%)
15
Vickers Hardness*
(HV)
120
* For reference

The numerical values are representative and may vary depending on the tempering process.

Heat resistance

The heat resistance of 15ZC is as follows. 15ZC shows higher heat resistance than MOFC-10200.

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