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CC764S Brass vs. R30155 Cobalt

CC764S brass belongs to the copper alloys classification, while R30155 cobalt belongs to the iron alloys. There are 27 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 CC764S brass and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
220
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 15
34
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
81
Tensile Strength: Ultimate (UTS), MPa 680
850
Tensile Strength: Yield (Proof), MPa 290
390

Thermal Properties

Latent Heat of Fusion, J/g 180
300
Maximum Temperature: Mechanical, °C 130
1100
Melting Completion (Liquidus), °C 850
1470
Melting Onset (Solidus), °C 810
1420
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 94
12
Thermal Expansion, µm/m-K 20
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
80
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 2.9
9.7
Embodied Energy, MJ/kg 49
150
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
230
Resilience: Unit (Modulus of Resilience), kJ/m3 390
370
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 30
3.2
Thermal Shock Resistance, points 22
21

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0
Antimony (Sb), % 0 to 0.050
0
Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 52 to 66
0
Iron (Fe), % 0.5 to 2.5
24.3 to 36.2
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0.3 to 4.0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 3.0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tin (Sn), % 0 to 0.3
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 20.7 to 50.2
0