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C27400 Brass vs. EN 2.4964 Cobalt

C27400 brass belongs to the copper alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C27400 brass and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
86
Tensile Strength: Ultimate (UTS), MPa 370 to 650
960

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Melting Completion (Liquidus), °C 920
1630
Melting Onset (Solidus), °C 870
1550
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 31
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.0
9.6
Embodied Carbon, kg CO2/kg material 2.7
9.8
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 320
450

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
21
Strength to Weight: Axial, points 13 to 23
28
Strength to Weight: Bending, points 14 to 21
23
Thermal Diffusivity, mm2/s 37
3.9
Thermal Shock Resistance, points 12 to 22
25

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 58
Copper (Cu), % 61 to 64
0
Iron (Fe), % 0 to 0.1
0 to 3.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 35.6 to 39
0
Residuals, % 0 to 0.3
0