|Copper Nickel Electric resistance materials|
|Nickel Chromium Electric resistance materials|
|Precision resistance material Manganin|
|Precision resistance material Karmalloy|
|Enameled resistance wire|
During the past century since our foundation in 1916, our precision resistance materials have received high evaluations from critics in various fields of the industrial world such as communication tools, automobile parts, precision measurement systems, and home electric products.
We can meet the precise, varied needs of our customers for diverse products with combinations of our processing technologies, such as melting, molding, rolling, wire drawing, and different kinds of advanced coating.
We can supply not only precision resistance wire, ribbon, and bar, but also parts in other forms which our customers need.
We can precisely meet the various needs of our customers by manufacturing precision resistance wire, ribbon, and bar that have a variety of characteristics and functions.
As shown in Table 1, we supply various kinds of electric resistance materials.
Please choose the material that suits your purpose best.
|No.||Material alloy||Name||Symbol||Chemical Composition|
μΩ · m
X10-6 / ˚C
|Cu-Ni resistance material||CN49||45Ni, 2Mn,|
|0.49||20||410 ~ 540||25 <|
|30 micro resistance material||CN30||23Ni, 1.5Mn,|
|0.30||180||270 ~ 540||20 <|
|15 micro resistance material||CN15||10Ni, 1.0Mn,|
|0.15||420||250 ~ 490||20 <|
|10 micro resistance material||CN10||6Ni, 1.0Mn,|
|0.10||650||250 ~ 440||20 <|
|5 micro resistance material||CN05|| 2.5Ni, 1.0Mn,|
|0.05||1200||200 ~ 390||20 <|
|Precision resistance material Manganin||CM|| 12Mn, 2Ni, |
|0.44||10||340 ~ 590||10 <|
|Precision resistance wire Karmalloy*1||KMW|| 76Ni, 19Cr,|
|1.33||20||880 ~ 1200||20 <|
|Ni-Cr resistance material class 1||NCH-1||19Cr, 2.5Mn,
|1.08||50||690 ~ 930||20 <|
|Ni-Cr resistance material class 2||NCH-2||57Ni, 16.5Cr,
|1.12||150||640 ~ 880||20 <|
|Fe-Cr resistance material class 1||FCH-1|| 24.5Cr, 4.5Al,|
|1.42||80||640 ~ 880||10 <|
|Fe-Cr resistance material class 2||FCH-2|| 19Cr, 3Al,|
|1.23||150||590 ~ 830||10 <|
*1 Karmalloy in this table is our registered trademark.
The 's in the table are to be filled in with P standing for plate, R for ribbon, or W for wire.
|Features of Alloy|| Cu-Ni Alloy|
| Cu-Mn-Ni Alloy|
| Ni-Cr Alloy|
| Ni-Cr-Al Alloy|
|Small temp. coefficient|
|Large volume resistivity|
|Small amount at the electromotive force against copper|
|Fine dia. wires can be drawn excellent mechanical features|
|Stable resistance over many years|