Nickel Chromium Nichrome 70 Ni70cr30/Nicr 70/30 resistance Wire for Heaters

• Type de produit: Fil
• Matériel: Ni70Cr30
• Teneur en carbone: Faible Carbone
• PCD: Nichel chrome alloy
• ET: NiCr 70/30 wire
• Trou: NiCr 70/30 wire
• N° de Modèle.: NiCr 70/30
• grade: NiCr7030/Ni70Cr30/NiCr 70/30
• surface: câble nicr70/30 brillant
• artisanat: ruban recuit
• forme: fil rond , fil ruban et bande
• fils en alliage série: ni80cr20/ni70cr30/ni60cr15/ni30cr20/ni20cr25
• utilisation: élément chauffant/fil de résistance/accessoire domestique
• pureté: 70 % ni
• standard: La norme ASTM/GB/DIN
• résistivité: 1.18 ohms mm2/m
• Paquet de Transport: Packing in Coil Cartons, Pallet, Spools, Coils
• Spécifications: in customers′ requirement
• Marque Déposée: TANKII
• Origine: China
• Code SH: 75052200
• Capacité de Production: 2000tons/Year

Description de Produit

Nickel Chromium Nichrome 70 Ni70cr30/Nicr 70/30 resistance Wire for Heaters

Common Name: Ni70Cr30, N7, HAI-NiCr70, Chromel70/30, Resistohm70, Balco, Tophet 30, Cronix 70, Alloy 710, Stablohm 710
 
Ni70Cr30 is a nickel-chromium alloy (NiCr alloy) characterized byHigh resistivity, good oxidation resistance,very good form stability,good ductility and excellent weldability. It is suitable for use at temperatures up to 1250°C.

Typical applications for Ni70Cr30 are used in electrical heating elements in industrial furnace,and well suited for reducing atmospheres. 

Properties/Grade		NiCr 80/20	NiCr 70/30	NiCr 60/15	NiCr 35/20	NiCr 30/20
Main Chemical Composition(%)	Ni	Bal.	Bal.	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	Bal.	Bal.	Bal.
Max Working Temperature(ºC)		1200	1250	1150	1100	1100
Resistivity at 20ºC (μ Ω · m)		1.09	1.18	1.12	1.04	1.04
Density(g/cm3)		8.4	8.1	8.2	7.9	7.9
Thermal Conductivity (KJ/m· h· ºC)		60.3	45.2	45.2	43.8	43.8
Coefficient of Thermal Expansion(α × 10-6/ºC)		18	17	17	19	19
Melting Point(ºC)		1400	1380	1390	1390	1390
Elongation(%)		> 20	> 20	> 20	> 20	> 20
Micrographic Structure		austenite	austenite	austenite	austenite	austenite
Magnetic Property		nonmagnetic	nonmagnetic	nonmagnetic	nonmagnetic	nonmagnetic

Product Description
Grade: Ni80Cr20 ,also called MWS-650,NiCrA,Tophet A,HAI-NiCr 80,Chromel A,Alloy A,N8,Resistohm 80, Stablohm 650,Nichorme V etc.

Chemical Content(%)

C	P	S	Mn	Si	Cr	Ni	Al	Fe	Other
Max
0.03	0.02	0.015	0.60	0.75~1.60	20.0~23.0	Bal.	Max 0.50	Max 1.0	-

Mechanical Properties of nichrome wire

Max Continuous Service Temperature:	1200ºC
Resisivity 20ºC:	1.09 ohm mm2/m
Density:	8.4 g/cm3
Thermal Conductivity:	60.3 KJ/m·h·ºC
Coefficient of Thermal Expansion:	18 α×10-6/ºC
Melting Point:	1400ºC
Elongation:	Min 20%
Micrographic Structure:	Austenite
Magnetic Property:	nonmagnetic

Temperature Factors Of Electrical Resistivity

20ºC	100ºC	200ºC	300ºC	400ºC	500ºC	600ºC
1	1.006	1.012	1.018	1.025	1.026	1.018
700ºC	800ºC	900ºC	1000ºC	1100ºC	1200ºC	1300ºC
1.01	1.008	1.01	1.014	1.021	1.025	-