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R30001 Cobalt vs. EN 1.4530 Stainless Steel

R30001 cobalt belongs to the cobalt alloys classification, while EN 1.4530 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R30001 cobalt and the bottom bar is EN 1.4530 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 86
76
Tensile Strength: Ultimate (UTS), MPa 620
1030 to 1370

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1530
1460
Melting Onset (Solidus), °C 1260
1410
Specific Heat Capacity, J/kg-K 430
470
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 8.9
3.4
Embodied Energy, MJ/kg 130
46
Embodied Water, L/kg 460
130

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 19
36 to 48
Strength to Weight: Bending, points 18
29 to 35
Thermal Shock Resistance, points 19
35 to 47

Alloy Composition

Aluminum (Al), % 0
0.6 to 0.8
Carbon (C), % 2.0 to 3.0
0 to 0.015
Chromium (Cr), % 28 to 32
11.5 to 12.5
Cobalt (Co), % 43 to 59
0
Iron (Fe), % 0 to 3.0
74.4 to 77.3
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0 to 1.0
1.9 to 2.2
Nickel (Ni), % 0 to 3.0
8.5 to 9.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0
0.28 to 0.37
Tungsten (W), % 11 to 13
0