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ASTM A182 Grade F23 vs. R30001 Cobalt

ASTM A182 grade F23 belongs to the iron alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 23 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 ASTM A182 grade F23 and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 22
1.0
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
86
Tensile Strength: Ultimate (UTS), MPa 570
620

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1500
1530
Melting Onset (Solidus), °C 1450
1260
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 41
15
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 2.5
8.9
Embodied Energy, MJ/kg 36
130
Embodied Water, L/kg 59
460

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
2.0 to 3.0
Chromium (Cr), % 1.9 to 2.6
28 to 32
Cobalt (Co), % 0
43 to 59
Iron (Fe), % 93.2 to 96.2
0 to 3.0
Manganese (Mn), % 0.1 to 0.6
0
Molybdenum (Mo), % 0.050 to 0.3
0 to 1.0
Nickel (Ni), % 0 to 0.4
0 to 3.0
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.0050 to 0.060
0
Tungsten (W), % 1.5 to 1.8
11 to 13
Vanadium (V), % 0.2 to 0.3
0