Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
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High Quality Nichrome Chromium Alloy Electric Resistance Wire
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.This methos is to heat alloy elements with 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.
Nickel Chromium Nickel-Chromium Alloy Resistance Heating Wire Features and advantages
1. High using temperature, the maximum using temperature can reach 1400C
2. Low temperature coefficient of resistance
3. Lower thermal expansion coefficient than the Ni-base super-alloys.
4. High electrical resistivity
5. Good corrosion resistance under high temperature, especially under the atmosphere containing sulfides
6. High surface load
7. Creep-resistant
8. Lower raw-material cost, Lower density and cheaper price compared with Nichrome wire.
9. Superior oxidation resistance at 800-1300ºC
10. Long service life
| Properties | Grade | |
| Ni80Cr20 | ||
| Chemical composition % | Ni | Balance |
| Cr | 20.0~23.0 | |
| Fe | ≤1.0 | |
| Highest service temperature °C | 1200 | |
| Melting point °C | 1400 | |
| Density g/cm3 | 8.40 | |
| Resistivity μΩ.m,20°C | 1.09 | |
| Elongation % | ≥20 | |
| Specific heat J/g.°C | 0.440 | |
| Thermal conductivity KJ/m.h.°C | 60.3 | |
| Coefficient of linear extensibility α×10-6/°C | 18.0 | |
| Microstructure | Austenite | |
| Magnetic property | nonmagnetic | |
Size:
wires: dia 0.06-10mm Ribbons:0.05*0.2-2.0*6.0mm
Strips:0.5*5.0-5.0*250mm Bars:D10-100mm
Company Profile:
Shanghai Tankii Alloy Material Co., Ltd. Focus on the production of resistance alloy(nichrome Alloy, FeCrAl Alloy, copper nickel alloy, thermocouple wire, precision alloy and thermal spray alloy in the form of wire, sheet, tape, strip, rod and plate. We've already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system. We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.
Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over 35 years in this field. During these years, more than 60 management elites and high science and technology talents were employed. They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market. Based on the principle of "first quality, sincere service", our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.
Our products, such us nichrome alloy, precision alloy, thermocouple wire, fecral alloy, copper nickel alloy, thermal spray alloy have been exported to over 60 countries in the world. We are willing to establish strong and long-time partnership with our customers. Most complete range of products dedicated to Resistance, Thermocouple and Furnace manufacturers Quality with end to end production control Technical support and Customer Service.
