UNS R30012 Co-Cr-W Alloy
Cobalt Alloys
Property Overview
Density8.8g/cm³
Elastic Modulus220GPa
Tensile Strength830MPa
Yield Strength650MPa
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
1.4 to 2.0%
CR
27 to 32%
NI
0 to 3.0%
MO
0 to 1.0%
SI
0 to 2.0%
CO
47.5 to 64.1%
W
7.5 to 9.5%
FE
0 to 3.0%
Mechanical
Compressive (Crushing) Strength
1770 MPa
Elastic (Young's, Tensile) Modulus
220 GPa
Elongation at Break
1.0 %
Fatigue Strength
320 MPa
Poisson's Ratio
0.28
Shear Modulus
86 GPa
Tensile Strength: Ultimate (UTS)
830 MPa
Tensile Strength: Yield (Proof)
650 MPa
Hardness
Rockwell C Hardness
48
Physical
Density
8.8 g/cm 3
Thermal
Latent Heat of Fusion
320 J/g
Melting Completion (Liquidus)
1470 °C
Melting Onset (Solidus)
1280 °C
Specific Heat Capacity
440 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
3.8 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
23 points
Electrical
Electrical Conductivity: Equal Volume
1.8 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.8 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
7.7 MJ/m 3
Resilience: Unit (Modulus of Resilience)
960 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
22 points
Environmental
Embodied Carbon
8.3 kg CO 2 /kg material
Embodied Energy
120 MJ/kg
Embodied Energy
120 MJ/kg 50 x 10 3 BTU/lb
Embodied Water
480 L/kg
Embodied Water
480 L/kg 58 gal/lb
Registered Designations & Aliases
R30012UNS R30012 Co-Cr-W Alloy