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C36200 Brass vs. R31537 Cobalt

C36200 brass belongs to the copper alloys classification, while R31537 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C36200 brass and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 20 to 53
14 to 23
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
87
Tensile Strength: Ultimate (UTS), MPa 340 to 420
1000 to 1340
Tensile Strength: Yield (Proof), MPa 130 to 360
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 900
1360
Melting Onset (Solidus), °C 890
1290
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 120
13
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 28
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 2.6
8.1
Embodied Energy, MJ/kg 45
110
Embodied Water, L/kg 320
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 140
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 89 to 630
780 to 1990
Stiffness to Weight: Axial, points 6.9
15
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 11 to 14
33 to 44
Strength to Weight: Bending, points 13 to 15
26 to 32
Thermal Diffusivity, mm2/s 37
3.4
Thermal Shock Resistance, points 11 to 14
24 to 32

Alloy Composition

Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.9 to 69
Copper (Cu), % 60 to 63
0
Iron (Fe), % 0 to 0.15
0 to 0.75
Lead (Pb), % 3.5 to 4.5
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0
0 to 1.0
Zinc (Zn), % 32.4 to 36.5
0