Production Alloy system Chemical composition Features Example of use

EFCR-44 (CMR)

 Cu-Mn-Ni Cu-11.5Mn-2.7Ni Low temperature coefficient of resistance (TCR) and low thermal electromotive force (EMF).
  • Shunt resistor
  • Chip resistor

EFCR-30 (HRR)

 Cu-Mn-Sn Cu-6.8Mn-2.3Sn Low temperature coefficient of resistance (TCR) and low thermal electromotive force (EMF).
  • Shunt resistor
  • Chip resistor
OFC
(C1011)		 Oxygen free copper for electron devices 99.99Cu The first to obtained JIS Third-party Certificate in Japan.
  • Electronic parts
  • Automotive parts
OFC
(C1020)		 Oxygen free copper 99.96Cu The highest level in purity.
  • Electronic parts
  • Automotive parts
TPC
(C1100)		 Tough pitch copper 99.90Cu The highest level in purity.
  • Electronic parts
  • Automotive parts
CC Bar
(C18200)		 Cu-Cr Cu-0.9Cr High strength, high conductivity and excellent heat resistance.
  • Electrode tip
  • Rotary bar
CZ Bar
(Substitute to C15000)		 Cu-Zr Cu-0.2Zr High strength, high conductivity and excellent heat resistance.
  • Welding electrode tip
CZC61 Bar
(C18150)		 Cu-Cr-Zr Cu-0.6Cr-0.1Zr High strength, high conductivity and excellent heat resistance.
  • Welding electrode tip
EFTEC-194BD
(C19400)		 Cu-Fe Cu-2.4Fe-0.13Zn-0.04P High strength, high conductivity, good bendability and good heat resistance.
  • Terminal for mechanical relay
EFTEC-98BD Corson copper Cu-3.75Ni-0.9Si-0.5Zn-0.15Sn-0.1Mg Good strength, high conductivity and excellent stress relaxation property.
  • Coaxial connector
  • Welding machine parts
Resistance alloys Cu-Ni, Cu-Zn, Other Cu-Ni, Cu-Zn, Other High strength, high conductivity and excellent heat resistance.
  • Rotary bar

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