Nickel Chronme Alloy Cr20ni80 for 0.700mm Resistance Wire

• Type: Bare
• Conductor Type: Solid
• Application: Heating, Wire Wound Resistance
• Conductor Material: Copper Nickel Alloys
• Material Shape: Round Wire
• Range of Application: Aviation, Electronics, Heating, Chemical, Medical
• Model NO.: 0.700mm
• Certification: ISO9001, CE, RoHS, ISO14001
• Brand: Juntaihejin
• Product Shelf Life: 3 Years
• Resistance Characteristics: Niti
• Chemical Composition: Niti
• Transport Package: Carton
• Trademark: juntaihejin
• Origin: China
• HS Code: 7502200000
• Production Capacity: 2000t/Year

Product Description

              

Cr20Ni80 is a resistance thermoelectric alloy with stable microstructure, stable electrical and physical properties, good high-temperature mechanical properties, good cold deformation plasticity, good weldability, and no brittle fracture after long-term use. It is widely used in the manufacture of household appliances and heating elements with working temperatures below 1000ºC, and has a long service life. Due to its high nickel content, it is relatively expensive.

 

80Ni-20Cr has high nickel and chromium content and low iron content.  It has good oxidation resistance, thermal strength, and low positive temperature coefficient below 1000 ºC. At room temperature, it has high plasticity, cold stamping, and welding performance. The alloy is a single-phase austenite after solution treatment and has stable microstructure during use.

 

Cr20Ni80 implementation standard: GB/T1234-2012

 

Chemical composition:
 

C	≤0.08%	Cr	20.0-23.0%
Mn	≤0.6%	Ni	balance
P	≤0.02%	Fe	≤ 1.0%
S	≤0.015%	Al	0.5%
Si	0.75-1.60%

 Alloy grade and chemical composition:

Alloy grade	Chemical composition(Mass)/%
	C	P	S	Mn	Si		Cr	Ni	A1	Fe	other
	not more than
Cr20Ni80	0.08	0.020	0.015	0.60	0.75~1.60		20.0~23.0	balance	≤0.50	≤1.0	-
Cr30Ni70	0.08	0.020	0.015	0.60	0.75~1.60		balance		≤0.50	≤1.0	-
Crl5Ni60	0.08	0.020	0.015	0.60	0.75~1.60		15.0~18.0	55.0~61.0	≤0.50	balance	-
Cr20Ni35	0.08	0.020	0.015	1.00	1.00~3.00		18.0~21.0	34.0~37.0	-	balance	-
Cr20Ni30	0.08	0.020	0.015	1.00	1.00~3.00		18.0~21.0	30.0~34.0	-	balance	-

 

Maximum operating temperature of the component is	1200ºC
Fast life	not less than 80h
Melting point	1400ºC
Density	8.4g/cm3
Specific heat capacity	0.46J/(g.K)
Elongation rate	≥20

 

Tensile strength	not less than 650 Rm/MPa
Thermal conductivity	15 W/(m.K) (20ºC)
Linear expansion coefficient	18
Microstructure	austenite
Magnetic	no

Metallographic structure of Cr20Ni80:
Cr20Ni80 alloy is a single-phase austenite structure

 

1,As a heating element, it is mainly used in periodic thermal treatment furnaces with a working temperature below 1000°C, such as carburizing furnaces, bell-jar furnaces, ammonia decomposition furnaces, etc.
 
2, Electric heating wire for high-end electric heating tubes and high-end household electric heaters

3, Resistance tape used in high-quality resistance boxes

It can also be used as high-quality heat-resistant steel structural components, such as high-temperature mesh belts and burners.
 

 

1.FeCrAl wire strip includes:OCr13Al4,OCr19Al3,OCr21Al4,OCr20Al5,OCr25Al5,OCr21Al6,OCr21Al6Nb,OCr27Al7Mo2.
2.Nickel chrome wire Strip Bar includes: Cr25Ni20,Cr20Ni35,Cr15Ni60,Cr20Ni80.
3.Copper Nickel wire Strip includes:CuNi1,CuNi2,CuNi5,CuNi8,CuNi10,CuNi14,CuNi19,CuNi23,CuNi30,CuNi34,CuNi44.
4.Constantan wire includes: 6J40,4J42,4J32.
5.Manganin wire:6J8,6J12,6J13.


Main Advantage and Application 
 
It widely used in surtur and sulfide environment and producing industrial electric furnace, household electrical appliance and far infrared ray device.
 
Low price with high electric resistance, low temperature cofficient of resistance, high working temperature and good corrosion resistance under high temperature especially.
 
 

Brand\ performance[2]		Cr15Ni60		Cr20Ni80	Cr20Ni35
Main chemical components	C	Not greater than	0.08	0.08	0.10
	P		0.02	0.02	0.03
	S		0.015	0.015	0.025
	Mn		0.60	0.60	1.00
	Si	0.75~1.60		0.75~1.60	1.00~3.00
	Cr	15.00~18.00		20.00~23.00	18.00~21.00
	Ni	55.00~61.00			34.00~37.00
	Al	≤0.50		≤0.50	≤0.50
	Mo	/		/	/
	Fe			≤1.00
	Nb	/		/	/
Operating temperatureºC		1150		1200	1100
melting pointºC		1350		1400	1350
densityg/cm³		8.2		8.4	8.0
resistivity20ºCmm/m		1.12±0.06		1.14±0.05	1.05±0.05
elongationδ%		>20		>20	>25
Repeated bending times		>9		>9	>9
rapid life testºC/hour		1120/100		1175/100	1120/100
magnetic		Non-magnetic		Non-magnetic	Non-magnetic

Factory reality gate:




A corner of the workshop:



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Packaging examples and logistics:

What is your working time?
Monday-Saturday : 7:30AM-17:00PM (Beijing time, GMT+08.00)
We have public holiday during May.1-3, Oct.1-7 and Chinese New Year holiday . For detail,please see our update holiday notice.
During these period, if you have a demand, Please send me an email.

Do you provide free samples?
Yes, we can provide a free sample for testing,buyer should bear all the shipping costs.

What is your payment terms?
T/T,L/C,D/A,D/P,Western Union,MoneyGram,Paypal

What is the lead time?
Usually sample lead time is 7 days after payment has been confirmed.
Normal order is 10-30days,it depends on customers' quantity.

 

 

Non-magneti

balance