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R30075 Cobalt vs. EN 1.4596 Stainless Steel

R30075 cobalt belongs to the cobalt alloys classification, while EN 1.4596 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is R30075 cobalt and the bottom bar is EN 1.4596 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 82 to 98
76
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
1030 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.1
3.5
Embodied Energy, MJ/kg 110
48
Embodied Water, L/kg 530
130

Common Calculations

Stiffness to Weight: Axial, points 14 to 17
14
Stiffness to Weight: Bending, points 24 to 25
25
Strength to Weight: Axial, points 26 to 42
36 to 56
Strength to Weight: Bending, points 22 to 31
29 to 39
Thermal Shock Resistance, points 21 to 29
35 to 54

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.8 to 1.1
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0 to 0.015
Chromium (Cr), % 27 to 30
11.5 to 12.5
Cobalt (Co), % 58.7 to 68
0
Iron (Fe), % 0 to 0.75
73.4 to 76.4
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 5.0 to 7.0
1.9 to 2.2
Nickel (Ni), % 0 to 0.5
9.2 to 10.2
Nitrogen (N), % 0 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0 to 0.1
0.28 to 0.4
Tungsten (W), % 0 to 0.2
0