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CC754S Brass vs. R30006 Cobalt

CC754S brass belongs to the copper alloys classification, while R30006 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 CC754S brass and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 11
1.0
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
85
Tensile Strength: Ultimate (UTS), MPa 320
900
Tensile Strength: Yield (Proof), MPa 160
540

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 830
1400
Melting Onset (Solidus), °C 780
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 95
15
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 30
1.7

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.6
Embodied Carbon, kg CO2/kg material 2.8
7.8
Embodied Energy, MJ/kg 47
110
Embodied Water, L/kg 330
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 130
670
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11
29
Strength to Weight: Bending, points 13
24
Thermal Diffusivity, mm2/s 31
3.9
Thermal Shock Resistance, points 10
26

Alloy Composition

Aluminum (Al), % 0 to 0.8
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Copper (Cu), % 57 to 63
0
Iron (Fe), % 0 to 0.7
0 to 3.0
Lead (Pb), % 0.5 to 2.5
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
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.3
0 to 2.0
Tin (Sn), % 0 to 1.0
0
Tungsten (W), % 0
4.0 to 6.0
Zinc (Zn), % 30.2 to 42.5
0