Cr15Ni60 nickel-chromium alloy is a high-performance resistance heating material with excellent high-temperature oxidation resistance and stability. It is widely used in aerospace and industrial electric furnaces. Its density is 8.7 g/cm³, its melting point is as high as 1400℃, and its maximum operating temperature can reach 1150℃. The resistivity of the alloy is 1.12±0.05μΩ·m at 20℃, its tensile strength is 600-700 MPa, and its elongation is ≥20%, showing good mechanical properties. Cr15Ni60 alloy can maintain a stable resistance value in high temperature environment, and the dense oxide film formed on the surface gives it excellent corrosion resistance. This alloy is suitable for the manufacture of electric heating elements, heating equipment and high-temperature sensors, especially in scenarios that require long-term stable operation.
Size dimension range:
Wire: 0.01-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
NiCr series: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30
| Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
| Composition | Ni | 90 | Rest | Rest | 55.0~61.0 | 34.0~37.0 | 30.0~34.0 |
| Cr | 10 | 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 | Rest | Rest | Rest |
| Maximum temperature℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Meltiing point ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Density g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistivity at 20℃((μΩ·m) | | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
| Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Specific heat | | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
| J/g.℃ |
| Thermal conductivity | | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| KJ/m.h℃ |
| Coefficient of lines expansion | | 18 | 17 | 17 | 19 | 19 |
| a×10-6/ |
| (20~1000℃) |
| Micrographic structure | | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic properties | | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
| Form | Specification |
| Wire | Diameter=0.025mm~8mm |
| Flat wire | Width=0.40~6.0mm | Thick=0.03~0.50mm |
| Strip | width=8~250mm | Thick=0.05~3.0mm |
| Bar | Diameter=8~100mm | Long=50~1000 |
High temperature oxidation resistance:
The alloy can form a stable chromium oxide film at high temperature, which effectively prevents further oxidation and maintains good oxidation resistance even at high temperatures exceeding 1000℃.
Resistance stability:
The resistivity of Cr15Ni60 alloy is relatively high, about 1.12-1.25×10⁻⁶ Ω·m, and the resistivity increases linearly with the increase of temperature, showing a good temperature coefficient, which is suitable for high temperature electric heating elements.
Thermal stability:
The alloy can maintain stable physical properties at high temperatures of 700℃ to 1100℃, and is not prone to significant performance degradation, which is suitable for rapid heating and cooling conditions.
Mechanical properties:
It has high plasticity, cold stamping and welding properties at room temperature. After solution treatment, it has a single-phase austenite structure, stable organization, and a tensile strength of 600-650 MPa.
