Customization: | Available |
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Classification: | Rare Metal |
Feature: | Low Coefficient of Thermal Expansion |
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Ni | 35~37.0 | Fe | Bal. | Co | - | Si | ≤0.3 |
Mo | - | Cu | - | Cr | - | Mn | 0.2~0.6 |
C | ≤0.05 | P | ≤0.02 | S | ≤0.02 |
Density (g/cm3) | 8.1 |
Electrical resistivity at 20ºC(ohm mm2/m) | 0.78 |
Temperature factor of resistivity(20ºC~200ºC)X10-6/ºC | 3.7~3.9 |
Thermal conductivity, λ/ W/(m*ºC) | 11 |
Curie point Tc/ ºC | 230 |
Elastic Modulus, E/ Gpa | 144 |
θ/ºC | α1/10-6ºC-1 | θ/ºC | α1/10-6ºC-1 |
20~-60 | 1.8 | 20~250 | 3.6 |
20~-40 | 1.8 | 20~300 | 5.2 |
20~-20 | 1.6 | 20~350 | 6.5 |
20~-0 | 1.6 | 20~400 | 7.8 |
20~50 | 1.1 | 20~450 | 8.9 |
20~100 | 1.4 | 20~500 | 9.7 |
20~150 | 1.9 | 20~550 | 10.4 |
20~200 | 2.5 | 20~600 | 11.0 |
Tensile Strength | Elongation |
Mpa | % |
641 | 14 |
689 | 9 |
731 | 8 |
Temperature range, ºC | 20~50 | 20~100 | 20~200 | 20~300 | 20~400 |
aR/ 103 *ºC | 1.8 | 1.7 | 1.4 | 1.2 | 1.0 |
The heat treatment process | |
Annealing for stress relief | Heated to 530~550ºC and hold 1~2 h. Cold down |
annealing | In order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880ºC in vacuum,hold 30 min. |
The stabilization process |
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Precautions |
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Alloys Name | Type | Dimension | ||
4J36 | Wire | D= 0.1~8mm | ||
4J36 | Strip | W= 5~250mm | T= 0.1mm | |
4J36 | Foil | W= 10~100mm | T= 0.01~0.1 | |
4J36 | Bar | Dia= 8~100mm | L= 50~1000 | |