Nickel Chrome Heating Wire

NiCr8020, NiCr7030
NiCr6015, NiCr3520
All types available
All sizes available

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Model:
NiCr
Brand:
MICC

Resistance wire(heating wire) used at operating temperatures up to 1200. Its chemical composition gives
good oxidation resistance especially under conditions of frequent switching or wide temperature fluctuations.

Applications include heating elements in both domestic and industrial appliances and in control resistors.
Ni-Cr materials are widely used in industrial electric furnaces, household appliances and far-infrared devices
because of their high temperature strength and strong plasticity.

Main property of NiCr electric heating alloy
property	type	Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Main chemical composition%	Ni	Rest	Rest	55~61	34~37	30~34
	Cr	20~23	28~31	15~18	18~21	18~21
	Fe			Rest	Rest	Rest
Max continuous Temp.of element(℃)		1200	1200	1150	1100	1100
resistivity(mm²/m)		1.09	1.09	1.12	1	1.04
Density((g/cm³))		8.4	8.4	8.2	7.9	7.9
Thermal conductivity(KJ/M.h℃)		60.3	60.3	45.2	43.8	43.8
Coefficient of liner expansion(a*10-5/℃)		18	18	17	19	19
Melting point (℃)		1400	1400	1390	1390	1390
Elongation(%)		720	720	720	720	720
Micrographic structure		Austenitic	Austenitic	Austenitic	Austenitic	Austenitic
Magnetic property		NONE	NONE	NONE	NONE	NONE

Main characteristics of Ni-Cr electric heating alloys

Alloy Nomenclature/Performance		Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Main Chemical composition	Ni	Rest	Rest	55.0-61.0	34.0-37.0	30.0-34.0
	Cr	20.0-23.0	28.0-31.0	15.0-18.0	18.0-21.0	18.0-21.0
	Fe	≤1.0	≤1.0	Rest	Rest	Rest
Max. continuous service temp. of element		1200	1250	1150	1100	1100
Resistivity at 20°C(μΩ·m)		1.09	1.18	1.12	1	1.04
Density (g/cm3)		8.4	8.1	8.2	7.9	7.9
Thermal conductivity(KJ/m·h·°C)		60.3	45.2	45.2	43.8	43.8
Coefficient of lines expansion(α×10-6/°C)		18	17	17	19	19
Melting point (approx.)( °C)		1400	1380	1390	1390	1390
Elongation at rupture (%)		>20	>20	>20	>20	>20
Micrographic structure		austenite	austenite	austenite	austenite	austenite
Magnetic properties		nonmagnetic	nonmagnetic	nonmagnetic	Weak magnetic	Weak magnetic

MICC TECH LIMITED is a professional temperature sensor and heating component supplier in Nanjing.

#26 Puzhu South Road, Pukou District, Nanjing 211800, Jiangsu China
   + 86 25 8644 2824
   + 86 25 5246 8824
   +86 139 1388 6088
   micc@micc.cc
xuzhuchen@hotmail.com

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