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CC767S Brass vs. R30001 Cobalt

CC767S brass belongs to the copper 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 (8, in this case) are not shown.

For each property being compared, the top bar is CC767S brass and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 34
1.0
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
86
Tensile Strength: Ultimate (UTS), MPa 430
620

Thermal Properties

Latent Heat of Fusion, J/g 180
310
Melting Completion (Liquidus), °C 840
1530
Melting Onset (Solidus), °C 790
1260
Specific Heat Capacity, J/kg-K 390
430
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 36
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 2.7
8.9
Embodied Energy, MJ/kg 47
130
Embodied Water, L/kg 330
460

Common Calculations

Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
22
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 34
3.7
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 58 to 64
0
Iron (Fe), % 0 to 0.5
0 to 3.0
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 1.0
0 to 3.0
Silicon (Si), % 0 to 0.2
0 to 2.0
Tin (Sn), % 0 to 0.1
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 32.8 to 41.9
0