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AWS BMg-1 vs. C35300 Brass

AWS BMg-1 belongs to the magnesium alloys classification, while C35300 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 C35300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
100
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
39
Tensile Strength: Ultimate (UTS), MPa 180
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 600
910
Melting Onset (Solidus), °C 440
890
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 76
120
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
26
Electrical Conductivity: Equal Weight (Specific), % IACS 55
29

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.8
8.1
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 980
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 66
19
Strength to Weight: Axial, points 27
12 to 22
Strength to Weight: Bending, points 39
13 to 21
Thermal Diffusivity, mm2/s 43
38
Thermal Shock Resistance, points 10
11 to 22

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
60 to 63
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.050
0
Zinc (Zn), % 1.7 to 2.3
33.9 to 38.5
Residuals, % 0 to 0.3
0 to 0.5