Ni-free model casting alloy based on cobalt-chrome-molybdenum Biocompatible.
Cobilium BSM is available in three qualities:
-
BSM 3 spring hard
Ideal for combined work. Harder with higher elongation limit and tensile strength than BSM 4 and 5
-
BSM 4 super spring hard
Ideal for clasp dentures. Suitable for laser welding.
-
BSM 5
Ideal for clamp dentures. Sharp melting range. Suitable for laser welding.
Combilium BSM excels by virtue of its outstanding bending strength, high elasticity and fine flow behaviour. Combilium BSM features reduced oxide formation, can be finished easily and exhibits bright surfaces that can be polished well.
Composition %:
|
BSM 3
|
Co ~63
|
Mo ~5
|
Cr ~30
|
C ~0,5
|
Mn, Si, Fe <2
|
|
BSM 4
|
Co ~64
|
Mo ~6
|
Cr ~29
|
C ~0,25
|
Mn, Si, Fe <2
|
|
BSM 5
|
Co ~64
|
Mo ~5
|
Cr ~28,5
|
C ~0,35
|
Mn, Si, Fe <2
|
Technical data:
| |
BSM 3
|
BSM 4
|
BSM 5
|
|
EN ISO 22674
|
Type 5
|
Type 5
|
Type 5
|
|
RP 0,2 [N/mm2 ]*
|
600
|
550
|
600
|
|
Tensile strength [N/mm2 ]*
|
>830
|
>750
|
880
|
|
Elongation [A5 %]*
|
>5
|
>7
|
6,3
|
|
Vickers hardness HV 10
|
>350
|
>300
|
350
|
|
E modulus [kN/mm2 ]*
|
230
|
230
|
215
|
|
Density [g/cm3 ]
|
8,3
|
8,4
|
8,2
|
|
Melting range [°C]
|
1210-1380
|
1210-1380
|
1320-1350
|
|
CTE (20-600 °C)
[µ/K]
|
15
|
16
|
15
|
|
Supply form
|
Cylinder
|
Cylinder
|
Cylinder
|
* data valid for room temperature
.jpg "Preview: Laser welding wire")
.png "Preview: Duropont opaquer")
