Shanghai Tankii Alloy Material Co.,Ltd
| Supply Ability | 300+ton+month |
| Delivery Time | 8-20 days |
| Packaging Details | standard packing |
| material | nickel Chrome |
| application | heating |
| color | bright or oxidation |
| type | solid |
| elongation | >20% |
| max temperature | 1250C |
| Brand Name | TANKII |
| Model Number | ni70cr30 |
| Certification | ISO9001 |
| Place of Origin | Shanghai |
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Product Specification
| Supply Ability | 300+ton+month | Delivery Time | 8-20 days |
| Packaging Details | standard packing | material | nickel Chrome |
| application | heating | color | bright or oxidation |
| type | solid | elongation | >20% |
| max temperature | 1250C | Brand Name | TANKII |
| Model Number | ni70cr30 | Certification | ISO9001 |
| Place of Origin | Shanghai | ||
| High Light | Cr20ni80 Nichrome Resistance Wire ，Solid Nichrome Resistance Wire ，Non Magnetic Nichrome Resistance Wire | ||
high temperature ni70cr30 cr20ni80 nicr nichrome resistance wire
Heat resistance wire is a type of high resistance electrical wire. The wire resists the flow of electricity, and converts the electrical energy into heat.
Nichrome, a non-magnetic alloy of nickel and chromium, is commonly used to make resistance wire because it has a high resistivity and resistance to oxidation at high temperatures. When used as a heating element, resistance wire is usually wound into coils.
The high nickel content, in combination with the high chromium content let the scaling temperature can reach to 1250ºC
Chrome Nickel wire was shaped by means of high speed automatic cooling machine of which the power capacity is controlled by computer, they are available as wire and ribbon(strip).
nichrome wire resistance Product forms and size range
| Nichrome Alloy Grade | Cr20Ni80,Cr20Ni30,Cr15Ni60,Cr20Ni35,Cr20Ni40 |
| Form | Round wire,Flat wire,Strip,Bar,Spring shaped wire, Wave shaped strip,Radiant tube heater |
| Size | Wire: 0.030mm-10mm Ribbon: 0.05*0.2mm-2.0*6.0mm furnance spring wire according to customers requirement
|
nichrome wire resistance Features and advantages
1)The highest working temperature up to 1200 degree.
2)higher strength than iron chromium aluminum under high temperature
3)not easy to deform under high temperature
4)good plasticity
5)easy to repair,
6)high emissivity,
7)Non-magnetic
8)strong corrosion resistance,
9)long service life
Uses of nichrome wire
Chrome nickel wire resistance is widely used for making electric heating elements in home appliances and industrial furnaces.,various electrical resistors and locomotive braking resistor, infrared equipment, liquefied gas infrared heat-resisting net, different kinds of igniting and radiating electrodes and voltage-regulating resistors for motors and so on in Metallurgical machinery
nichrome wire resistance Main characteristics
| Type | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
| Main chemical composition | Ni | Rest | 55.0~61.0 | Rest | 34.0~37.0 | 30.0~34.0 |
| Cr | 20.0~23.0 | 15.0~18.0 | 28.0~31.0 | 18.0~21.0 | 18.0~21.0 | |
| Fe | ≤1 | Rest | ≤1 | Rest | Rest | |
| Maximal Temperature(℃) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Resistance Temperature correction coefficient.(CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
| Melting point (℃) | 1400 | 1390 | 1380 | 1390 | 1390 | |
| Resistivityρ20℃(10-6Ω.m) | 800℃ | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000℃ | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200℃ | 1.025 | 1.043 | ||||
| Fast life value | Tem.(℃) | 1175 | 1100 | 1200 | 1050 | 1050 |
| hour(h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| Specific gravity(g/cm3) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
| Elongation(%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Thermal(kj/m.h.℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Specific heat(20℃)j/g.℃ | 0.440 | 0.494 | 0.461 | 0.500 | 0.500 | |
| Extend strength(20~1000℃)α*10-6℃ | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
| Tensile strength(kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
| Repeatedly bending(F/R) | >12 | >12 | >12 | >12 | >12 | |
| Microstructure | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | |
nichrome wire resistance Notice
Resistance electric heating wire has strong antioxidant properties, but a variety of gases in furnaces such as air, carbon, sulfur, hydrogen and nitrogen atmosphere, still have a certain impact on it.
Although these heating wires all have had antioxidant treatment, the transportation, winding, installation and other process will cause damage to a certain extent and reduce its service life.
In order to extend the service life, customers need to do pre oxidation treatment before using. The method is to heat alloy elements which have installed completely in the dry air to the temperature (lower 100-200C than its maximum using temperature), heat preservation for 5 to 10 hours, then cooling slowly with furnace.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1981
Total Annual:
8000000-100000000
Employee Number:
90~100
Ecer Certification：
Verified Supplier
Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb... Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb...
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