All Sizes Available Nickel Chrome Heating Wire Good Oxidation Resistance

• Customization: Available
• Certification: ISO9001, CE
• Product Name: Resistance Wire
• Model NO.: Nickel Chrome Heating Wire
• Transport Package: Carton
• Specification: customized
• Trademark: MICC
• Origin: China, Jiangsu

Product Description

 Micc  All sizes available Nickel Chrome Heating Wire Good oxidation resistance 

 

 

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(ºC)			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.hºC)			60.3	60.3	45.2	43.8	43.8
Coefficient of liner expansion(a*10-5/ºC)			18	18	17	19	19
Melting point (ºC)			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