Compositio Chemica in %, Invar
nota | Compositio chemica | ||||||||
Ni | Fe | C | P | Si | Co | Mn | Al | S | |
≤ | |||||||||
4j42 | 41.5~42.5 | Bal | 0.05 | 0.02 | 0.3 | - | 0.80 | 0.10 | 0.02 |
4j45 | 44.5~45.5 | Bal | 0.05 | 0.02 | 0.3 | - | 0.80 | 0.10 | 0.02 |
4j50 | 49.5~50.5 | Bal | 0.05 | 0.02 | 0.3 | 1.0 | 0.80 | 0.10 | 0.02 |
4j52 | 51.5~52.5 | Bal | 0.05 | 0.02 | 0.3 | - | 0.60 | - | 0.02 |
4j54 | 53.5~54.5 | Bal | 0.05 | 0.02 | 0.3 | - | 0.60 | - | 0.02 |
Constantes physicae fundamentales et proprietates mechanicae mixturae metallicae:
nota | Conductivitas thermalis | Capacitas calorica specifica | Densitas | Resistivitas electrica | Punctum Curie |
4j52 | 16.7 | 502J | 8.25 | 0.43 | 520 |
Typica expansionis character (10-6 / ºC) | ||||||||
Ambitus temperaturae | XX~C | XX~CC | XX~CCC | XX~CCCL | XX~CCCC | XX~CCL | XX~D | XX~DC |
Coefficiens expansionis | 10.3 | 10.4 | 10.2 | 10.3 | 10.3 | 10.3 | 10.8 | 11.2 |
Mixtura 4 j52 praecipue ad obsignationem vitri plumbei mollis, et ad fusibilia tubuli parvi adhibetur.
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