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OSNISIL® is a high-strength, corrosion resistant and age-hardened alloy with good electrical conductivity.
OSNISIL® is supplied to DIN 17666 or other specifications related to DIN 17666 or related to EN 1652 / EN 12163 / EN 12165 / EN 12166 / EN 12167 / EN 12449.
OSNISIL® stands out for the following characteristics:
- Low temperature properties
OSNISIL® does not show any cold-shortness at decreasing temperatures. Low temperatures have no adverse effect on its high notch impact strength.
- Electrical conductivity
The precipitation mechanism of aging not only raises mechanical strength but also significantly increases electrical conductivity, reaching levels which are relatively high in comparison to those of other high-strength copper alloys.
OSNISIL® D can be used – also as an alternative to CuCoBe – where an electrical conductivity of above 25 Ms/m is required.
OSNISIL® D is used, for example, for the plungers in diecasting machines, switch blades and welding electrodes.
- Mechanical strength
OSNISIL® in the age hardened condition (LA, LKA) reaches strength values right up to those of tempered steels.
- Resistance to corrosion
OSNISIL®'s resistance to chemical attack is equal to that of pure copper. In the age hardened condition it is practically immune to stress corrosion cracking.
- Machinability
The machinability rating of OSNISIL® in the age hardened condition (LA,LKA) is between 30 and 40 (copper = 20, CuZn39Pb3 = 100).
- Cold workability
OSNISIL® in the solution heat treated condition (L) is nearly as soft and ductile as copper, enabling high degrees of plastic deformation. It still accepts further deformation, such as the cold heading of bolts, even after severe cold working (LK condition).
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