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R30075 Cobalt vs. SAE-AISI H19 Steel

R30075 cobalt belongs to the cobalt alloys classification, while SAE-AISI H19 steel belongs to the iron alloys. There are 20 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 SAE-AISI H19 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 82 to 98
75
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1360
1540
Melting Onset (Solidus), °C 1290
1490
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
29
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
7.5
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 530
110

Common Calculations

Stiffness to Weight: Axial, points 14 to 17
13
Stiffness to Weight: Bending, points 24 to 25
24
Strength to Weight: Axial, points 26 to 42
24 to 68
Strength to Weight: Bending, points 22 to 31
22 to 43
Thermal Diffusivity, mm2/s 3.5
7.9
Thermal Shock Resistance, points 21 to 29
21 to 59

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0.32 to 0.45
Chromium (Cr), % 27 to 30
4.0 to 4.8
Cobalt (Co), % 58.7 to 68
4.0 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.75
81.4 to 85.5
Manganese (Mn), % 0 to 1.0
0.2 to 0.5
Molybdenum (Mo), % 5.0 to 7.0
0.3 to 0.55
Nickel (Ni), % 0 to 0.5
0 to 0.3
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
3.8 to 4.5
Vanadium (V), % 0
1.8 to 2.2

Comparable Variants