Audited Supplier
0.035mm
Bare
Solid
Heating, Wire Wound Resistance
Copper Nickel Alloys
Round Wire
Aviation, Electronics, Heating, Chemical, Medical
ISO9001, CE, RoHS, ISO14001
Juntaihejin
3 Years
Niti
Niti
juntaihejin
Carton
China
7502200000
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.
Introduction:
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%; Mn ≤0.6%; P ≤0.02%; S ≤0.015%; Si:0.75-1.60%; Cr:20.0-23.0%; Ni:balance Fe ≤ 1.0% Al≤ 0.5%
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
The application range of Cr20Ni80 is:
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
| 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
Nantong Juntai Alloy Fiber Co., Ltd. is located in Rugao City, Jiangsu Province, which is known as the hometown of longevity in China. It is a professional enterprise specializing in the production of resistance microfilaments and electrothermal microfilaments. The company has a team of R&D and management talents, a perfect quality assurance system, advanced testing equipment and technology, and has passed ISO9001 quality system certification, 14001 environmental system certification, and EU-approved RoHS, ELV, REACH and other tests. In October 2021, Nantong Juntai Electronic Materials Technology Co., Ltd. was established to specialize in the research and development of high-tech materials in the fields of aerospace and electronic components.
The modern production line that integrates drawing and annealing independently developed by the company has done well in the processing of wire arrangement, disk loosening, wire clamping, and resistance balance. During the heat treatment process, by improving the special process, the welding performance of the product for users has been improved. At the same time, the equipment has computer numerical control frequency conversion control, constant tension winding, and the internal and external quality of each axis of alloy wire produced is consistent. It provides high-quality quality assurance for users in the instrument and meter industry as well as the resistance and electrothermal industries, and also wins a good reputation for our company.
The modern production line that integrates drawing and annealing independently developed by the company has done well in the processing of wire arrangement, disk loosening, wire clamping, and resistance balance. During the heat treatment process, by improving the special process, the welding performance of the product for users has been improved. At the same time, the equipment has computer numerical control frequency conversion control, constant tension winding, and the internal and external quality of each axis of alloy wire produced is consistent. It provides high-quality quality assurance for users in the instrument and meter industry as well as the resistance and electrothermal industries, and also wins a good reputation for our company.
The buyer is visiting the factory to see the debugging and production of the machine. The buyer is visiting the factory on site:
We will conduct on-site inspections of the production workshops and production processes of the factory, focusing on whether the production equipment of the factory meets the standard requirements and whether the employee operations are standardized.
Products will be randomly selected for inspection to determine whether the quality of the products meets contractual and standard requirements.
I will understand the training situation of factory employees, including production operation specifications, quality control awareness, etc.
We will conduct on-site inspections of the production workshops and production processes of the factory, focusing on whether the production equipment of the factory meets the standard requirements and whether the employee operations are standardized.
Products will be randomly selected for inspection to determine whether the quality of the products meets contractual and standard requirements.
I will understand the training situation of factory employees, including production operation specifications, quality control awareness, etc.
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.
