MakeItFrom.com
Menu (ESC)

SAE-AISI M33 Steel vs. R30006 Cobalt

SAE-AISI M33 steel belongs to the iron alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M33 steel and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
85
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
900

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1550
1400
Melting Onset (Solidus), °C 1500
1290
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.6
Embodied Carbon, kg CO2/kg material 7.7
7.8
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 150
500

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 27 to 75
29
Strength to Weight: Bending, points 24 to 46
24
Thermal Diffusivity, mm2/s 5.5
3.9
Thermal Shock Resistance, points 25 to 68
26

Alloy Composition

Carbon (C), % 0.85 to 0.92
0.9 to 1.4
Chromium (Cr), % 3.5 to 4.0
27 to 32
Cobalt (Co), % 7.8 to 8.8
48.6 to 68.1
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.4 to 76.3
0 to 3.0
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 9.0 to 10
0 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 3.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 1.3 to 2.1
4.0 to 6.0
Vanadium (V), % 1.0 to 1.4
0