MakeItFrom.com
Menu (ESC)

R30075 Cobalt vs. ZA-12

R30075 cobalt belongs to the cobalt alloys classification, while ZA-12 belongs to the zinc alloys. There are 27 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30075 cobalt and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
83
Elongation at Break, % 12
1.6 to 5.3
Fatigue Strength, MPa 250 to 840
73 to 120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 82 to 98
33
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
260 to 400
Tensile Strength: Yield (Proof), MPa 480 to 840
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 320
120
Melting Completion (Liquidus), °C 1360
430
Melting Onset (Solidus), °C 1290
380
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 13
120
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
42

Otherwise Unclassified Properties

Density, g/cm3 8.4
6.0
Embodied Carbon, kg CO2/kg material 8.1
3.4
Embodied Energy, MJ/kg 110
64
Embodied Water, L/kg 530
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
260 to 620
Stiffness to Weight: Axial, points 14 to 17
7.6
Stiffness to Weight: Bending, points 24 to 25
24
Strength to Weight: Axial, points 26 to 42
12 to 19
Strength to Weight: Bending, points 22 to 31
15 to 20
Thermal Diffusivity, mm2/s 3.5
43
Thermal Shock Resistance, points 21 to 29
9.4 to 14

Alloy Composition

Aluminum (Al), % 0 to 0.1
10.5 to 11.5
Boron (B), % 0 to 0.010
0
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.35
0
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 58.7 to 68
0
Copper (Cu), % 0
0.5 to 1.2
Iron (Fe), % 0 to 0.75
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 0.5
0 to 0.020
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.0
0 to 0.060
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
0
Zinc (Zn), % 0
87.1 to 89