Waea Nikara Rino Koranu Tika mō te Hiri Karāhe
Whakarōpūtanga: tauwehenga iti o te koranu whakawhānui wera
Te Whakamahinga: Ka whakamahia te Invar ki ngā wāhi e hiahiatia ana te pumau o ngā āhuatanga, pērā i ngā taputapu tika, ngā karaka, ngā ine ngoki rū whenua, ngā anga ārai-ataata pouaka whakaata, ngā takirere i roto i ngā motuka, me ngā mataaratanga ārai-aukume. I roto i te ruri whenua, ina mahia te whakataurite teitei o te raupapa tuatahi (tika-teitei), ko ngā tokotoko whakataurite e whakamahia ana he mea hanga ki te Invar, kaua ki te rakau, ki te muka karāhe, ki ētahi atu konganuku rānei. I whakamahia ngā pou Invar i roto i ētahi piston hei whakawhāiti i tō rātou whakawhānui wera i roto i ō rātou rango.
Te Hanganga Matū i roto i te %, Invar
| Ni 35-37% | Fe . | C 0.05% | Si 0.3% | Mn 0,3-0,6 % | S 0.015% |
| P 0.015% | Mo 0.1% | V 0.1% | Al 0.1% | Cu 0.1% | Cr 0,15 % |
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| Awhe Pāmahana/ºC | 1/10-6ºC-1 | Awhe Pāmahana/ºC | 1/10-6ºC-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 |
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