HOMEPRODUCTSSUPER ALLOYElectrothermal material

JMS ENGINEERING CO.,LTD.

HOMEPRODUCTSSUPER ALLOYElectrothermal material

Electrothermal material

From the heating wire to the precision machinery.
Responding to customer’s needs by excellent accuracy

IC advanced by miniaturizing and making to large-scale integration.An excellent characteristic in respects of thermal conductivityand the thermal expansion coefficient, etc. is requested from the material that supports the ultra-advanced technology of micro.
The Nippon Koshuha’s materials for the electronic part have low thermal expansion and good seal wear, and achieve the stable thermal expansion coefficient. It receives high appraisal as materials such as the precision machinery component, lead frames, and magnetic shielding. The electric heat materials have small difference of the volume resistivity. Moreover, the materials have corrosion resistance, heat resistance, and the workability, and are used as parts such as hot plates and resistors. Nippon Koshuha’s and electron and electrothermal material have various usages by the high quality to which the manufacturing technology with results crystallizes and are recommended.


Special alloy wire
Arrester product
Electrothermal material
Class grade Equivalent alloy Principal chemical composition

Volume resistivity
(μΩ/cm3)

Highest working temperature

Mechanical property Example of usage
Tensile strength
(N/mm2)
elongation
(%)

Nicrorm

KTA-NC1 NCHW-1 80Ni-20Cr 108±6 1100 690~780 20 or more Electric heat wire
KTA-NC2 NCHW-2 60Ni-17Cr-Fe 112±6 1000 590~680 20 or
more
Low thermal expansion, and seal wear material
Class Grade Equivalent alloy Principal chemical composition Thermal expansion coefficient up to 100℃(×10-6/℃) Thermal conductivity
(cal/cm・S・℃)
Volume resistivity
(μΩ/cm3)
Curie point
(℃)
Example of usage
Low and thermal expansion raw material KTA-IN INVAR 36Ni-Fe 0.5~2.0 0.033 80 225 Precision machinery part, Bimetal low expansion material
KTA-SI SUPER INVAR 32Ni-4Co-Fe 0.01~0.5 78
Seal wear raw material KTA-KV KOVAR 29Ni-17Co-Fe 5.1~5.5 0.040 49 435 Lead frame, Dumet wire, Magnetic shielding
KTA42N 42Ni 42Ni-Fe 6.4~7.4 0.035 70 375
KTA46N 46Ni 46Ni-Fe 8.2~8.9 0.027 45 450
KTA52N 52Ni 52Ni-Fe 9.6~10.1 0.032 43 510
KTA426 42Ni-6Cr 42Ni-6Cr-Fe 9.7~10.4 0.029 95 295

The trademark quoted on this page and the proprietary rights are as shown in the following.

Trade mark Name of the company Trade mark Name of the company
DISCALOY Westinghouse Electric KOVAR Carpenter technology
ELINVAR Imphy Alloys MONEL INCO Alloys
HASTELLOY Haynes International NIMONIC INCO Alloys
INCONEL INCO Alloys NISPANC INCO Alloys
INCOLOY INCO Alloys WASPALOY United Technologies.
INVAR Imphy Alloys