Nichrome 80

Nichrome 80 is a nickel-chromium resistance alloy for operating temperatures up to 1200℃. It has highly corrosion resistance and lower coefficient of resistance than other heater element alloys. Nichrome 80 is the most ideal resistance heating alloy.

Equivalent Grades

Trademarks	GB	JIS	ASTM	UNS	DIN	W-Nr.	ГОСТ	BS	NF	SS
Nikrothal 80 Nichrome 80 Nichrome V Chromel A Alloy A Tophet A Resistohm 80 Stablohm 650 MWS 650 Gilphy 80	Cr20Ni80	NCHW1 NCHRW1	Nichrome 80 NiCr80 20	N06003	NiCr 80 20	2.4869	Х20Н80 Х20Н80-Н	–	–	–

Specifications

GB/T 1234-1995 (CN); JIS C2520-199(JP); ASTM B344-01(USA); DIN 17470-1984(GER); GOST 10994 & GOST 12766/1-1990 (RU)

Product Forms

Wire, Bar, Strip, Sheet, Tube, Mesh, Conveyor belt, Radiant tube heater

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Al	Fe
Nichrome 80	≤0.08	0.75~1.60	≤0.60	≤0.02	≤0.015	20.0~23.0	Bal	≤0.50	≤1.0

Note: Х20Н80-Н (Add Zr:0.2-0.5%)

Mechanical Properties (RT, Annealed)

Tensile Strength, Rm/MPa	Elongation, A/%
Tensile Strength, Rm/MPa	Dia. >3.00mm (for wire)	Dia. 0.10~3.00mm (for wire) and Th. >0.20 (for strip)
≥650	≥25	≥20

Physical Properties

Max Working Temperature, ℃	Melting Point, ℃	Density, g/cm3	Resistivity, μΩ·m, 20℃	Specific Heat, J/g·℃	Thermal Conductivity, KJ/m·h·℃	Average Coefficient of Linear Expansion, α×10-6/℃ （20~1000℃）	Micrographic Structure	Magnetic Properties
1200	1400	8.4	1.09	0.44	60.3	18.0	Austenitie	Non-Magnetic

Life Test

Test Temperature, ℃	Continuous Service Time Hours, ℃
1200	≥80

Temperature Factor of Resistivity

20℃	100℃	200℃	300℃	400℃	500℃	600℃	700℃	800℃	900℃	1000℃	1100℃	1200℃	1300℃
1.000	1.006	1.012	1.018	1.025	1.026	1.018	1.010	1.008	1.010	1.014	1.021	1.025	–

Features

Great ductility
Excellent workability and weldability under high temperature
High and stable resistivity
Surface oxidation resistance
Sufficient high temperature strength
Working temperature up 1200℃

Applications

Nichrome 80 is used for electric heating elements in home appliances and industrial furnaces.

Electrical parts and electronic components
Electric heating elements (home & industrial use)
Industrial furnaces up to 1200℃
Heating cables, mats and cords
Flat irons
Ironing machines
Water heaters
Plastic moulding dies
Soldering irons
Metal sheathed tubular elements and cartridge elements

Based on client’s requirement, we have succeeded in producing Х20Н80-Н. Through adding Zr element around 0.2-0.5%, it can increase alloy working temperature, and strength. It is mostly used in high temperature industry furnace.