
Turned cast billets of high-temperature nickel base alloys of vacuum melting: diameter 65-90 mm, length up to 850 mm, mass up to 40 kg. Extruded grinded rods of high-temperature nickel base alloys: diameter 20-50 mm, length 200-400 mm, mass 2-5 kg. Long-term temperature strength - min. 50 hours (test temperature 900 0C, constant stress 31-32 kgf/mm2. Room temperature mechanical properties, min.: ultimate strength - 85 kgf/mm2, elongation - 20%, reduction of area - 25%, impact strength - 6 kgf/cm2. 750 0C mechanical properties, min.: ultimate strength - 65 kgf/mm2, elongation - 11%, reduction of area - 15%.
| Long-term strength |
Room temperature mechanical properties, |
| Test temperature, 0C |
Constant stress, kgf/mm2 |
Time to failure (min), hours |
s в kgf/mm2 |
s 0,2 kgf/mm2 |
d (%) |
y (%) |
a k kgf/mm2 |
| 800-1050 |
11-35 |
40 |
85 |
70 |
3 |
4 |
1 |
|
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