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C37100 Brass vs. G-CoCr28 Cobalt

C37100 brass belongs to the copper alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 26 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 C37100 brass and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 8.0 to 40
6.7
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
83
Tensile Strength: Ultimate (UTS), MPa 370 to 520
560
Tensile Strength: Yield (Proof), MPa 150 to 390
260

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Maximum Temperature: Mechanical, °C 120
1200
Melting Completion (Liquidus), °C 900
1330
Melting Onset (Solidus), °C 890
1270
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
8.5
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
100
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.7
6.2
Embodied Energy, MJ/kg 45
84
Embodied Water, L/kg 320
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 120
31
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 750
160
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 13 to 18
19
Strength to Weight: Bending, points 14 to 18
19
Thermal Diffusivity, mm2/s 39
2.2
Thermal Shock Resistance, points 12 to 17
14

Alloy Composition

Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 58 to 62
0
Iron (Fe), % 0 to 0.15
9.7 to 24.5
Lead (Pb), % 0.6 to 1.2
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 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
Zinc (Zn), % 36.3 to 41.4
0
Residuals, % 0 to 0.4
0