C |
P |
S |
Mn |
Si |
Cu |
≤0.03 |
≤0.02 |
≤0.02 |
≤0.5 |
≤ 0,3 |
≤0.2 |
Cr |
Mo |
Ni |
Ko |
Fe |
|
≤0.2 |
≤0.2 |
28.5~29.5 |
16.8~17.8 |
Qolgan |
Miqdoriy chaqovat |
8.36g/cm3 |
Holat kodsi |
Viloyat |
Tortish kuchi/MPa |
R |
Yumshoq holatda |
<585 |
¼I |
¼Qattiq holat |
585~725 |
½I |
½Sirt holati |
655~795 |
¾I |
¾Sirt holati |
725~860 |
Ман |
Sirt holati' |
>860 |
Sinf |
Namuna Ismoilik Instituti |
O'rta chiziqko'rinishli kengayish koeffitsiyenti α\/ (10-6\/ K) |
||||
20-300 ℃ |
20-400 ℃ |
20-450 ℃ |
||||
Ni29Co18 |
Uning olinishi uchun, hidrogen atmosferasida 900±20 ℃ gacha isitilgan va 1 soat davom etgan holda saqlangan, keyin qayta isitilgan bo‘lib, 1100±20 ℃ gacha yetkazilgan va 15 daqiqa davom etgan holda saqlangan, so'ngra harakat tezligi kamida 5 ℃/min bilan 200 ℃ dan pastga targ‘in etilgan |
---- |
4.6~5.2 |
5.1~5.5 |
Qotishma |
O'rtacha chizaydigan kengayish koeffitsiyenti α/(10-6/K) |
||||||||||||||
Sinf |
20~200 ℃ |
20~300 ℃ |
20~400 ℃ |
20~450 ℃ |
20~500 ℃ |
20~600 ℃ |
20~700 ℃ |
20~800 ℃ |
|||||||
Ni29Co18 |
5.9 |
5.3 |
5.1 |
5.3 |
6.2 |
7.8 |
9.2 |
10.2 |
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