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Nichrome Wire Ni70Cr30 Heating Spiral Wire For Heating Element

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Nichrome Wire Ni70Cr30 Heating Spiral Wire For Heating Element

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Brand Name :	DLX
Model Number :	Ni70Cr30
Payment Terms :	L/C, T/T, Western Union, MoneyGram
Supply Ability :	500 tons per month
Delivery Time :	7-20 days
Certification :	CE,ROHS

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Nichrome Wire Ni70Cr30 Heating Spiral Wire For Heating Element

Ni70Cr30 Heating Resistance Wire

Ni70Cr30 is an austenitic nickel-chromium alloy suitable for temperature applications up to 1250°C. High chromium content (30% in average) provides very good life time, especially in the furnace applications.

Ni70Cr30 is characterized by high resistivity, good oxidation resistance, good ductility after use and excellent weldability. Alloy is not subject to “green rot” and is particularly well suited for reducing and oxidizing atmospheres.

Electric Heating Devices

Ni70Cr30 resistance wire is widely used in various electric heating devices such as air heaters, electric furnaces, water heaters, etc. It provides stable heating performance and has a relatively long service life.

Heating Tubes

Ni70Cr30 resistance wire is often made into heating tubes for heating liquids or gases. These heating tubes are commonly used in heaters, water heaters, steam generators, etc.

Ovens and Microwaves

In household appliances, Ni70Cr30 resistance wire is used to manufacture heating elements for ovens and microwaves. They provide uniform heating and have the advantage of rapid heating.

Heating Pads and Blankets

Ni70Cr30 resistance wire is also used in the manufacture of heating pads, blankets, and other electric heating products, commonly used for warmth, therapy, etc.

Car Seat Heaters

In the automotive industry, Ni70Cr30 resistance wire is used to manufacture car seat heaters, providing comfortable seat heating for drivers and passengers, enhancing comfort during travel.

Nickel-chromium alloy performance tables

Performance material		Cr10Ni90	Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Composition	Ni	90	Rest	Rest	55.0～61.0	34.0～37.0	30.0～34.0
	Cr	10	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
Maximum temperature℃		1300	1200	1250	1150	1100	1100
Meltiing point ℃		1400	1400	1380	1390	1390	1390
Density g/cm3		8.7	8.4	8.1	8.2	7.9	7.9
Resistivity		--	1.09±0.05	1.18±0.05	1.12±0.05	1.00±0.05	1.04±0.05
μΩ·m,20℃
Elongation at rupture		≥20	≥20	≥20	≥20	≥20	≥20
Specific heat		--	0.44	0.461	0.494	0.5	0.5
J/g.℃
Thermal conductivity		--	60.3	45.2	45.2	43.8	43.8
KJ/m.h℃
Coefficient of lines expansion		--	18	17	17	19	19
a×10-6/
(20～1000℃)
Micrographic structure		--	Austenite	Austenite	Austenite	Austenite	Austenite
Magnetic properties		--	Nonmagnetic	Nonmagnetic	Nonmagnetic	Weak magnetic	Weak magnetic

Nichrome Wire Ni70Cr30 Heating Spiral Wire For Heating Element

The Form we could offer

Size Range
Wire	dia 0.03-7.5mm
	dia 8.0-12.0mm
Ribbon	(0.05-0.35)*(0.5-6.0)mm

Strip	(0.50-2.5)*(5-180)mm

Rod	8-50mm

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