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AWS BMg-1 vs. C66300 Brass

AWS BMg-1 belongs to the magnesium alloys classification, while C66300 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BMg-1 and the bottom bar is C66300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
110
Elongation at Break, % 3.8
2.3 to 22
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
42
Shear Strength, MPa 100
290 to 470
Tensile Strength: Ultimate (UTS), MPa 180
460 to 810
Tensile Strength: Yield (Proof), MPa 110
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 440
1000
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 76
110
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
25
Electrical Conductivity: Equal Weight (Specific), % IACS 55
26

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.8
8.6
Embodied Carbon, kg CO2/kg material 22
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
17 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 120
710 to 2850
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 66
19
Strength to Weight: Axial, points 27
15 to 26
Strength to Weight: Bending, points 39
15 to 22
Thermal Diffusivity, mm2/s 43
32
Thermal Shock Resistance, points 10
16 to 28

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
84.5 to 87.5
Iron (Fe), % 0 to 0.0050
1.4 to 2.4
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.35
Silicon (Si), % 0 to 0.050
0
Tin (Sn), % 0
1.5 to 3.0
Zinc (Zn), % 1.7 to 2.3
6.0 to 12.8
Residuals, % 0 to 0.3
0 to 0.5