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Cr20Ni70 Nichrome Wire Heating Coil

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Cr20Ni70 Nichrome Wire Heating Coil

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Brand Name :	Victory
Model Number :	Cr20Ni70
Certification :	CE
Payment Terms :	L/C, T/T, Western Union, MoneyGram
Supply Ability :	300 tons per month
Delivery Time :	5-21 days

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Cr20Ni70 Nichrome Wire Heating Coil

Cr20Ni70 Heating Nichrome Wire Strip Ribbon Resistance Wire Coil

NiCr Series

Cr20Ni70 is an exceptional material that offers a range of desirable properties, making it an ideal choice for various applications. It is known for its excellent ductility, workability, and weldability, even under high temperatures and seismic stress. This material is particularly useful in situations where high strength and durability are crucial.

One of the key features of Cr20Ni70 is its high and stable resistance to corrosion. This makes it an excellent choice for applications where the material will be exposed to harsh environments or corrosive substances. Additionally, the material has outstanding surface oxidation resistance, making it suitable for use in high-temperature settings.

Another advantage of Cr20Ni70 is its exceptional coil-forming ability. This property makes it easy to shape and mold the material into various forms and shapes, making it highly versatile and useful in a wide range of applications.

Overall, Cr20Ni70 is a highly desirable material that offers a range of properties that make it an excellent choice for various industrial and commercial applications. Its high strength, durability, and resistance to corrosion and oxidation make it an ideal choice for use in harsh environments, while its excellent coil-forming ability makes it easy to work with and shape to meet specific needs.

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 at 20℃((μΩ·m)			1.09±0.05	1.18±0.05	1.12±0.05	1.00±0.05	1.04±0.05
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			Non-magnetic	Non-magnetic	Non-magnetic	Weak magnetic	Weak magnetic
Micrographic structure		Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Magnetic properties		Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic

Form	Specification
Wire	Diameter=0.025mm~8mm
Flat wire	Width=0.40~6.0mm	Thick=0.03~0.50mm
Strip	width=8~250mm	Thick=0.05~3.0mm
Bar	Diameter=8~100mm	Long=50~1000

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

NiCr 80/20 is suitable for heating elements used for temperatures upto 1200°C. This is used for electrical cooking equipment, precison resistors. Oxidized wires of these alloys display better insulation properties.

NiCr 70/30 is suitable for heating elements used for temperatures upto 1230°C for industrial furnaces which have alternating oxidizing, or reducing atmosphere. This alloy has excellent corrosion resistance and long life in air and controlled atmospheres.

NiCr 60/15 is suitable for heating elements used for temperatures upto 1150°C. This is used for electrically heated equipment, high resistance and potientiometer resistors.

NiCr 30/20 is suitable for heating elements used for temperatures upto 1050°C. Inspite of relatively high Fe content, these alloys are resistant to oxidation and chemical corrosion. They are used for making heating elements of cooking equipment, heating cords and cables.

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