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ASTM A210 Steel vs. R30816 Cobalt

ASTM A210 steel belongs to the iron alloys classification, while R30816 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A210 steel and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
280
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 34
23
Fatigue Strength, MPa 230 to 250
250
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 470 to 540
1020
Tensile Strength: Yield (Proof), MPa 290 to 310
460

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1460 to 1470
1540
Melting Onset (Solidus), °C 1420
1460
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 52 to 53
13
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 7.9
9.1
Embodied Carbon, kg CO2/kg material 1.4
20
Embodied Energy, MJ/kg 18
320
Embodied Water, L/kg 45 to 46
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
190
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 250
510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 17 to 19
31
Strength to Weight: Bending, points 17 to 19
25
Thermal Diffusivity, mm2/s 14
3.3
Thermal Shock Resistance, points 15 to 17
28