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C26000 Brass vs. R30155 Cobalt

C26000 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 (9, in this case) are not shown.

For each property being compared, the top bar is C26000 brass and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 2.5 to 66
34
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
81
Shear Strength, MPa 230 to 390
570
Tensile Strength: Ultimate (UTS), MPa 320 to 680
850
Tensile Strength: Yield (Proof), MPa 110 to 570
390

Thermal Properties

Latent Heat of Fusion, J/g 180
300
Maximum Temperature: Mechanical, °C 140
1100
Melting Completion (Liquidus), °C 950
1470
Melting Onset (Solidus), °C 920
1420
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 20
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
80
Density, g/cm3 8.2
8.5
Embodied Carbon, kg CO2/kg material 2.7
9.7
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1 to 420
230
Resilience: Unit (Modulus of Resilience), kJ/m3 51 to 1490
370
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11 to 23
28
Strength to Weight: Bending, points 13 to 21
24
Thermal Diffusivity, mm2/s 38
3.2
Thermal Shock Resistance, points 11 to 23
21

Alloy Composition

Bismuth (Bi), % 0 to 0.0059
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), % 68.5 to 71.5
0
Iron (Fe), % 0 to 0.050
24.3 to 36.2
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 28.1 to 31.5
0
Residuals, % 0 to 0.3
0