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C44400 Brass vs. R30003 Cobalt

C44400 brass belongs to the copper alloys classification, while R30003 cobalt belongs to the cobalt alloys. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C44400 brass and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
83
Tensile Strength: Ultimate (UTS), MPa 350
970 to 1720
Tensile Strength: Yield (Proof), MPa 120
510 to 1090

Thermal Properties

Latent Heat of Fusion, J/g 180
310
Melting Completion (Liquidus), °C 940
1400
Melting Onset (Solidus), °C 900
1440
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 27
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 26
95
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 46
110
Embodied Water, L/kg 330
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 65
600 to 2790
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12
32 to 57
Strength to Weight: Bending, points 13
26 to 38
Thermal Diffusivity, mm2/s 35
3.3
Thermal Shock Resistance, points 12
26 to 45

Alloy Composition


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Antimony (Sb), % 0.020 to 0.1
0
Boron (B), % 0
0 to 0.1
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
39 to 41
Copper (Cu), % 70 to 73
0
Iron (Fe), % 0 to 0.060
10 to 20.5
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0
14 to 16
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0.9 to 1.2
0
Zinc (Zn), % 25.2 to 29.1
0
Residuals, % 0 to 0.4
0