Resistance Alloys ( Electrical Resistance Alloys/Electrical Heating Alloys)

Overview

A resistive material is a material whose composition is adjusted so that it is difficult to conduct electricity (high electrical resistance) in metals.
They are mainly classified into two types: "materials for electric resistance" used for resistors, etc. and "materials for electric heating" used for heating elements, etc.

"Materials for electric resistance" limit the flow of current through metal resistance, and "materials for electric heating" are used to generate heat due to metal resistance when an electric current is applied.

We manufacture various types of resistor materials in small lots with high quality.

Table of Contents

Examples of Applications
Available Shapes
Electrical Resistance Alloy
Electrical Heating Alloy
Download Technical Data
Related Pages

Examples of Applications

Various Resistors, Heaters, Heating Elements, etc.

Available Shapes

It depends on material grade, so please confirm details on each material grade page.

Electrical Resistance Alloy

Lineup and Features

Please scroll horizontally to view.

Product Name	Types	Typical Value				Features
Product Name	Types	Volume Resistivity ［μΩ・m］	TCR ［ppm/K］	Hardness ［HV］	Magnetism	Features
NCH-1	Electrical resistance nickel-chromium alloys for general use	1.08	50 ［23-100℃］	250 max	Non-magnetic	High Resistivity Good Heat Resistance, Corrosion Resistance, and Toughness Low TCR NCH-1 is superior to NCH-2 Low Brazeability and Solderability
NCH-2		1.12	150 ［23-100℃］	250 max	Non-magnetic
EVANOHM®*¹R	-	1.33	About 25 ［-65-125℃］	220 max	Non-magnetic	High Resistivity Greater TCR than NCH-1
CN30	Electrical resistance copper-nickel alloys for general use	0.30	About 180 ［20-105℃］	120 max	Non-magnetic	General Resistivity Lower TCR Good Workability and Weldability
CN49	Electrical resistance copper-nickel alloys for general use	0.49	-80-40 ［20-105℃］	120 max	Non-magnetic
MANGANIN®*²	Electrical resistance copper-manganese alloys for general use	0.44	±20 ［20-50℃］	120 max	Non-magnetic	General Resistivity Poor Corrosion Resistance and Oxidation Resistance Good Workability and Weldability
ZERANIN®*² 30	-	0.29	±10 ［20-60℃］	120 max	Non-magnetic	Low Resistivity Suitable for high-current sensing resistor applications Good Workability and Weldability
TJR-1 (Stainless Steels)	-	1.42	±50 ［25-125℃］	250 max	Magnetic	High Resistivity Ferrite Stainless Steel With Great High‐Temperature Oxidation Resistance Substitute for FCH 1

*1　Evanohm® is a registered trademark of Carpenter Technology Corporation.

*2　MANGANIN® and ZERANIN® are registered trademarks of Isabellenhütte Heusler GmbH & Co. KG.

Standards

Each standard is for reference only.

Please scroll horizontally to view.

Types	Product Name	Other Alloy Designations	Standards
Types	Product Name	Other Alloy Designations	Germany DIN	China GB	Japan JIS
Ni-Cr 系	NCH-1	ISA-CHROM 80	2.4869 NiCr8020	Cr20Ni80	GNC108R
Ni-Cr 系	NCH-2	ISA-CHROM 60	2.4867 NiCr6015	Cr15Ni60 6J415(6J15)	GNC112R
Ni-Cr-Al 系	EVANOHM™^※1R (Evanohm R)	ISAOHM	2.4872 NiCr20AlSi	---	---
Cu-Ni 系	CN30	ISAZIN	2.0881 CuNi23Mn	B25	GCN30R
Cu-Ni 系	CN49	ISOTAN	2.0842 CuNi44Mn1	6J40	GCN49R
Cu-Mn-Ni 系	MANGANIN®^※2	MANGANIN	2.1362 CuMn12Ni	6J12/6J13	GCM44
Cu-Mn-Sn 系	ZERANIN®^※2 30	ZERANIN 30	(CuMn7Sn)	6J8	---
Fe-Cr-Al 系	TJR-1 （ステンレス系）	Resistohm	1.4767 CrAl205	0Cr21Al6	GFC142

*1　Evanohm® is a registered trademark of Carpenter Technology Corporation.

*2　MANGANIN® and ZERANIN® are registered trademarks of Isabellenhütte Heusler GmbH & Co. KG.

Chemical Compositions

Please scroll horizontally to view.

[mass%]

Product Name	JIS	C	Si	Mn	Cu	Al	Cr	Ni	Sn	Fe	Others	Density
NCH-1	GNC108	0.15 max	0.75-1.6	2.5 max	ー	ー	19-21	77 min	ー	1.0 max	ー	8.4
NCH-2	GNC112	0.15 max	0.75-1.6	1.5 max	ー	ー	15-18	57 min	ー	Bal.	ー	8.3
EVANOHM®*¹ R	-	ー	1	1	2	2.5	20	73.5	ー	ー	ー	8.1
CN30	GCN30	ー	ー	1.5 max	ー	ー	ー	20-25	ー	ー	Cu+Ni+Mn　99 min	8.9
CN49	GCN49	ー	ー	0.5-2.5	ー	ー	ー	42-48	ー	ー	Cu+Ni+Mn 99 min	8.9
MANGANIN®*¹	GCM44	ー	ー	10-13	ー	ー	ー	1-4	ー	ー	Cu+Ni+Mn　98 min	8.4
ZERANIN®*¹ 30	-	ー	ー	7	Bal.	ー	ー	ー	2.3	ー	ー	8.5
TJR-1 （Stainless Steels）	-	0.015 max	1.0 max	1.0 max	ー	4.5-6	19-21	ー	ー	Bal.	ー	7.3

*1　Evanohm® is a registered trademark of Carpenter Technology Corporation.

*2　MANGANIN® and ZERANIN® are registered trademarks of Isabellenhütte Heusler GmbH & Co. KG.

Specifications：Adjustment of Conductor Resistance

We can adjust conductor resistance upon your request.
Even with the same material, conductor resistance varies depending on the product dimensions (thickness / width) and the degree of softening (tempering) of the product. By controlling these factors, we can achieve high-precision conductor resistance values.

■Difference between volume resistivityand conductor resistance.

Volume resistivity is a material-specific physical property and its unit is μΩ-m.It is affected by variations in composition of melting lot.
Conductor resistance is the resistance per meter length of reroll product, and its unit is Ω/m.

　

【Relationship between Volume Resisivity (ρ) and Conductor Resistance(R)】

Conductor Resistance（R） = Volume Resistivity（ρ） Thickness（t）×Width（w）

　
ρ ： Volume Resistivity（μΩ・m）
t ：Thickness（mm）
w ：Width（mm）

Advantages of TOKKIN

TOKKIN's materials for Electric Resistance have the following advantages.

Fine adjustment of conductor resistance is possible.
Even with the same material, there will be variations in volume resistivity depending on the melting lot and preparation.
We guarantee highly accurate conductor resistance values by adjusting plate thickness while measuring resistance values during the process.
Resistance temperature coefficient (TCR) is guaranteed.
Depending on the material, we can guarantee Temperature Coefficient of Resistance (TCR) upon your request.
[For example]　Zeranin30：　20-60℃　±10ppm
Highly accurate thickness tolerances are guaranteed.
In resistive materials, variations in thickness affect resistance. We guarantee highly accurate thickness tolerances with our long-cultivated technology.
Small lot production is available.
For resistor materials, we can manufacture small lot of 50 kg or more.
*We can also flexibly accommodate orders of less than 50 kg for prototypes, etc. Please feel free to contact us.
Ultra-thin foil can also be manufactured.
We manufacture from a minimum thickness of 0.002mm (2μm), and meet the market needs for smaller and thinner products.
Hardness can be adjusted upon your request.
By combination of cold rolling and heat treatment, we can adjust material's hardness to your requested one.

Electrical Heating Alloy

Lineup and Features

Please scroll horizontally to view.

Product Name	Types	Typical Value				Features
Product Name	Types	Volume Resistivity ［μΩ・m］	Maximum Operating Temperature ［℃］	Hardness ［HV］	Magnetism	Features
NCH-1	Electrical resistance nickel-chromium alloys for heating	1.08	1100	250 max	Non-magnetic	Excellent oxidation resistance and high-temperature strength. Use in sulfuric acid gas and in a hot and humid reducing atmosphere should be avoided.
NCH-2	Electrical resistance nickel-chromium alloys for heating	1.12	1000	250 max	Non-magnetic
FCH-1	Iron-chromium alloys for electrical heating	1.42	1200	250 max	Magnetic	Recommended for use at high temperatures. It has good oxidation resistance, but its high-temperature strength is inferior to that of NCH.
FCH-2	Iron-chromium alloys for electrical heating	1.23	1100	250 max	Magnetic
CN5	Electrical resistance copper-nickel alloys for general use	0.05	300	120 max	Non-magnetic	Low Resistivity Low Operating Temperature Good Workability and Weldability
CN10		0.10	300	120 max	Non-magnetic
CN15		0.15	400	120 max	Non-magnetic
TJH-1 (Stainless Steels)	-	1.42	1200	250 max	Magnetic	Ferrite stainless steel with great high‐temperature oxidation resistance Substitute for FCH 1(Contribute to cost reduction)

Standards

Each standard is for reference only.

Please scroll horizontally to view.

Types	Product Name	Other Alloy Designations	Standards
Types	Product Name	Other Alloy Designations	Germany DIN	China GB	Japan JIS
Ni-Cr	NCH-1	ISA-CHROM 80	2.4869 NiCr8020	Cr20Ni80	NCHRW1
Ni-Cr	NCH-2	ISA-CHROM 60	2.4867 NiCr6015	Cr15Ni60 6J415(6J15)	NCHRW2
Cu-Ni	CN5	ALLOY 30	2.0802 CuNi2	---	GCN5R
	CN10	ALLOY 60	2.0807 CuNi6	B5	GCN10R
	CN15	ALLOY 90	2.0811 CuNi10	BFe10-1-1	GCN15R
Fe-Cr-Al	FCH-1	Resistohm	1.4765 CrAl255	0Cr25Al5	FCHWR1
	FCH-2	---	---	---	FCHRW2
	TJH-1	Resistohm	1.4767 CrAl205	0Cr20Al5	FCHRW1

Chemical Compositions

Please scroll horizontally to view.

[mass%]

Product Name	JIS	C	Si	Mn	P	S	Al	Cr	Ni	Fe	Others	Density
NCH-1	NCHRW1	0.15 max	0.75-1.6	2.5 max	ー	ー	ー	19-21	77 min	1.0 max	ー	8.4
NCH-2	NCHRW2	0.15 max	0.75-1.6	1.5 max	ー	ー	ー	15-18	57 min	Bal.	ー	8.3
FCH-1	FCHRW1	0.1 max	1.5 max	1.0 max	ー	ー	4-6	23-26	ー	Bal.	ー	7.2
FCH-2	FCHRW2	0.1 max	1.5 max	1.0 max	ー	ー	2-4	17-21	ー	Bal.	ー	7.4
CN5	GCN5	ー	ー	1.0 max	ー	ー	ー	ー	0.5-3	ー	Cu+Ni+Mn　99 min	8.9
CN10	GCN10	ー	ー	1.0 max	ー	ー	ー	ー	4-7	ー	Cu+Ni+Mn　99 min	8.9
CN15	GCN15	ー	ー	1.0 max	ー	ー	ー	ー	8-12	ー	Cu+Ni+Mn 98 min	8.9
TJH-1（Stainless Steels）	-	0.015 max	1.0 max	1.0 max	0.04 max	0.03 max	4.5-6	19-21	ー	Bal.	ー	7.3

Specifications：Design of Heating Element

Heat Quantity depends on the product dimensions (thickness / width), volume resistivity(ρ), and coefficient of increase in resistance.
Please let us know your requirements so that we can propose the grade and dimensions that best suit your needs.

【Relationship between heat quantity (Q), volume resistivity (ρ), and coefficient of increase in resistance】

Heat Quantity（Q） = RI²T = I²・T・ρ・k　 t・w

　
R ：Electric Resistance（Ω）
ρ ：Volume Resistivity（μΩ・m）
k ：Coefficient of Increase in Resistance
I ：Electric Current（A）
T ：Time（sec.）
t ：Thickness（mm）
w ：Width（mm）

Advantages of TOKKIN

TOKKIN's materials for electric heating have the following advantages.

Highly accurate thickness tolerances are guaranteed.
In resistive materials, variations in thickness affect resistance. We guarantee highly accurate thickness tolerances with our long-cultivated technology.
Small lot production is available.
For resistor materials, we can manufacture small lot of 50 kg or more.
*We can also flexibly accommodate orders of less than 50 kg for prototypes, etc. Please feel free to contact us.
Ultra-thin foil can also be manufactured.
We manufacture from a minimum thickness of 0.002mm (2μm), and meet the market needs for smaller and thinner products.
Hardness can be adjusted upon your request.
By combination of cold rolling and heat treatment, we can adjust material's hardness to your requested one.

Download Technical Data

Electrical Resistance alloy / Electrical Heating Alloys

Download ＞

Metal Foils│Stainless Steel, Iron, Steel, Nonferrous Metal

We can make it to foils (less than 0.10 mm thick) in all the materials we manufacture.

Learn More

Ultra-Thin Metal Foil less than 10μm thick│GOKUHAK™

We define ultra-thin metal foil less than 10 microns thick as “GOKUHAKU”. We are capable of manufacturing foils as thin as 2 Microns.

Learn More

Resistance Alloys ( Electrical Resistance Alloys/Electrical Heating Alloys)

Overview

Examples of Applications

Available Shapes

Electrical Resistance Alloy

Lineup and Features

Standards

Chemical Compositions

Specifications：Adjustment of Conductor Resistance

Advantages of TOKKIN

Related Pages

Electrical Heating Alloy

Lineup and Features

Standards

Chemical Compositions

Specifications：Design of Heating Element

Advantages of TOKKIN

Related Pages

Download Technical Data

Electrical Resistance alloy / Electrical Heating Alloys

Related Pages

Metal Foils│Stainless Steel, Iron, Steel, Nonferrous Metal

Ultra-Thin Metal Foil less than 10μm thick│GOKUHAK™

We welcome your questions and inquiries regarding materials.

Resistance Alloys
( Electrical Resistance Alloys/Electrical Heating Alloys)