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C36200 Brass vs. R30155 Cobalt

C36200 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 (8, in this case) are not shown.

For each property being compared, the top bar is C36200 brass and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 20 to 53
34
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
81
Shear Strength, MPa 210 to 240
570
Tensile Strength: Ultimate (UTS), MPa 340 to 420
850
Tensile Strength: Yield (Proof), MPa 130 to 360
390

Thermal Properties

Latent Heat of Fusion, J/g 170
300
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 900
1470
Melting Onset (Solidus), °C 890
1420
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
80
Density, g/cm3 8.2
8.5
Embodied Carbon, kg CO2/kg material 2.6
9.7
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 140
230
Resilience: Unit (Modulus of Resilience), kJ/m3 89 to 630
370
Stiffness to Weight: Axial, points 6.9
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11 to 14
28
Strength to Weight: Bending, points 13 to 15
24
Thermal Diffusivity, mm2/s 37
3.2
Thermal Shock Resistance, points 11 to 14
21

Alloy Composition

Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 60 to 63
0
Iron (Fe), % 0 to 0.15
24.3 to 36.2
Lead (Pb), % 3.5 to 4.5
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), % 32.4 to 36.5
0