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C99700 Brass vs. G-CoCr28 Cobalt

C99700 brass belongs to the copper alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C99700 brass and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 25
6.7
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 46
83
Tensile Strength: Ultimate (UTS), MPa 380
560
Tensile Strength: Yield (Proof), MPa 170
260

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Maximum Temperature: Mechanical, °C 160
1200
Melting Completion (Liquidus), °C 900
1330
Melting Onset (Solidus), °C 880
1270
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 20
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
100
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 3.3
6.2
Embodied Energy, MJ/kg 53
84
Embodied Water, L/kg 320
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
31
Resilience: Unit (Modulus of Resilience), kJ/m3 120
160
Stiffness to Weight: Axial, points 8.3
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 13
19
Strength to Weight: Bending, points 14
19
Thermal Shock Resistance, points 11
14

Alloy Composition


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Aluminum (Al), % 0.5 to 3.0
0
Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 54 to 65.5
0
Iron (Fe), % 0 to 1.0
9.7 to 24.5
Lead (Pb), % 0 to 2.0
0
Manganese (Mn), % 11 to 15
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 4.0 to 6.0
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19 to 25
0
Residuals, % 0 to 0.3
0