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AWS BCo-1 vs. C69300 Brass

AWS BCo-1 belongs to the cobalt alloys classification, while C69300 brass belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS BCo-1 and the bottom bar is C69300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 700
550 to 630

Thermal Properties

Latent Heat of Fusion, J/g 420
240
Melting Completion (Liquidus), °C 1150
880
Melting Onset (Solidus), °C 1120
860
Specific Heat Capacity, J/kg-K 480
400
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 110
45
Embodied Water, L/kg 430
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 24
19 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Shock Resistance, points 21
19 to 22

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0.7 to 0.9
0
Carbon (C), % 0.35 to 0.45
0
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 46 to 54
0
Copper (Cu), % 0
73 to 77
Iron (Fe), % 0 to 1.0
0 to 0.1
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 16 to 18
0 to 0.1
Phosphorus (P), % 0 to 0.020
0.040 to 0.15
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
2.7 to 3.4
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
18.4 to 24.3
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.5