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The Bottom Line: Which Should You Choose? Choose Monel when your environment involves seawater, hydrofluoric acid, or highly reducing conditions. Choose stainless steel when oxid...
READ MORECR20NI30 Industrial-Grade NiCr, NiCrFe Alloys Wholesale
CR20NI30 Industrial-Grade NiCr, NiCrFe Alloys
The resistivity of CR20NI30 industrial-grade NiCr and NiCrFe alloys is 1.04 ± 0.05 μΩ·m. Although slightly lower than high-nickel alloys, its temperature coefficient of resistance (TCR) exhibits excellent linearity. In industrial power control, this means that extremely high temperature control accuracy can be achieved through simple voltage regulation. Its thermal conductivity is 43.8 kJ/m·h·°C. When used as a high-power braking resistor (such as in rail transit and crane deceleration), the lower thermal conductivity, combined with a high specific heat capacity (0.5 J/g·°C), allows the alloy to instantaneously absorb a large amount of kinetic energy converted into heat without causing localized melting.
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| Property | Type | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
| Main chemical (%) | Ni | Bal | REST | 55.0–61.0 | 34.0–37.0 | 30.0–34.0 |
| Cr | 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 | Bal | Bal | REST | |
| Max continuous service temp. (℃) | 1200 | 1100 | 1000 | 1000 | 1000 | |
| Melting point (℃) | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Density (g/cm³) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Resistivity (μΩ·m 20℃) | 1.09±0.05 | 1.18±0.05 | 1.11±0.05 | 1.04±0.05 | 1.04±0.05 | |
| Elongation (%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
| Specific heat (J/g℃ at 20℃) | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | |
| Thermal conductivity (k J/m.h℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Line expansion coefficient (α×10⁻⁶/℃(20–1000℃)) | 18 | 17 | 17 | 19 | 19 | |
| Micro structure | Austenite | Austenite | Austenite | Austenite | Austenite | |
| Magnetic properties | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic | |
About Us
Danyang Haiwei Electrothermal Alloy Co., Ltd.
Danyang Haiwei Electrothermal Alloy Co., Ltd. is located in Lvcheng Town, Danyang City, Jiangsu Province, China. The company was established in 2010 based on the original company "Danyang Huakang Electric Heating Alloy Co., Ltd." and has been in operation for over 40 years. Since its expansion, the company's total area has reached 30,000 square meters. As a famous China CR20NI30 Industrial-Grade NiCr, NiCrFe Alloys Manufacturers and CR20NI30 Industrial-Grade NiCr, NiCrFe Alloys Factory, the company has production lines for a series of products including FeCrAl, Kanthal, CuNi, NiCr, CuMn, Kangtong, Monel, Incoloy, Hastelloy, etc. We have equipped with advanced equipment and processes, capable of providing a complete product range from raw material melting, steel rolling, stretching, heat treatment to finished products and packaging. Standardization work and strict inspections run through every stage of the product. As Haiven people, we have always adhered to the goal of "building a first-class brand and a first-class enterprise". We uphold the spirit of "quality first, reputation foremost", providing customers with the highest quality products and competitive prices. Welcome new and old customers at home and abroad to visit and patronize. Let us achieve long-term win-win cooperation.
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