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R60704 Alloy vs. G-CoCr28 Cobalt

R60704 alloy belongs to the otherwise unclassified metals classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R60704 alloy and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
210
Elongation at Break, % 16
6.7
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
83
Tensile Strength: Ultimate (UTS), MPa 470
560
Tensile Strength: Yield (Proof), MPa 270
260

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
8.5
Thermal Expansion, µm/m-K 6.0
14

Otherwise Unclassified Properties

Density, g/cm3 6.7
8.1
Embodied Water, L/kg 460
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
31
Resilience: Unit (Modulus of Resilience), kJ/m3 370
160
Stiffness to Weight: Axial, points 8.1
15
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 12
2.2
Thermal Shock Resistance, points 58
14

Alloy Composition

Carbon (C), % 0 to 0.050
0.050 to 0.25
Chromium (Cr), % 0.2 to 0.4
27 to 30
Cobalt (Co), % 0
48 to 52
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0.2 to 0.4
9.7 to 24.5
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 93 to 98.8
0