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C38000 Brass vs. EN 2.4964 Cobalt

C38000 brass belongs to the copper alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 17
40
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
86
Tensile Strength: Ultimate (UTS), MPa 380
960
Tensile Strength: Yield (Proof), MPa 120
390

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Melting Completion (Liquidus), °C 800
1630
Melting Onset (Solidus), °C 760
1550
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Density, g/cm3 8.0
9.6
Embodied Carbon, kg CO2/kg material 2.7
9.8
Embodied Energy, MJ/kg 46
140
Embodied Water, L/kg 330
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
310
Resilience: Unit (Modulus of Resilience), kJ/m3 74
340
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
21
Strength to Weight: Axial, points 13
28
Strength to Weight: Bending, points 14
23
Thermal Diffusivity, mm2/s 37
3.9
Thermal Shock Resistance, points 13
25

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 58
Copper (Cu), % 55 to 60
0
Iron (Fe), % 0 to 0.35
0 to 3.0
Lead (Pb), % 1.5 to 2.5
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
Tin (Sn), % 0 to 0.3
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 35.9 to 43.5
0
Residuals, % 0 to 0.5
0