Opis:
Kobalt-hrom legura bez nikla i berilijuma. Livenje je moguće otvorenim plamenom kao i u indukcionoj mašini za livenje. Debljina zidova objekta mora biti najmanje 0,5 mm. Topi se u keramičkim tiglima za vreme livenja. Koeficijent termičke ekspanzije 14,1 um/mk, pogodan je za skoro svaki keramički materijal. Specifična težina legure : 8,4 g/cm3. Tačka topljenja: 1370-1385C. Tačka livenja: 1445C. Tvrdoća: 340 HV10. Nije potrebna oksidacija metala pre pečenja opakera. Kod pečenja keramike faza hlađenja mora da se radi postepeno.
Typical values*
yield strength RP 0,2 % (MPa) |
575 |
elongation (%) |
4,25 |
young's modul (GPa) |
170 |
tensile strength (MPa) |
750 |
density (g/cm3) |
8,4 |
casting temperature (°C) |
1485 |
CTE (25 – 500°C) |
14,1 |
hardness (HV 10/30) |
350 |
dimension, diameter and length (mm) |
Ø 8 x 15 |
type DIN EN ISO 22674 |
≥ type 5 as delivered |
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