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AWS BMg-1 vs. EN 1.7033 Steel

AWS BMg-1 belongs to the magnesium alloys classification, while EN 1.7033 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 EN 1.7033 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Tensile Strength: Ultimate (UTS), MPa 180
500 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 130
420
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 440
1420
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 76
45
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 55
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.2
Density, g/cm3 1.8
7.8
Embodied Carbon, kg CO2/kg material 22
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 980
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
18 to 61
Strength to Weight: Bending, points 39
18 to 41
Thermal Diffusivity, mm2/s 43
12
Thermal Shock Resistance, points 10
15 to 50

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0.3 to 0.37
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
97.1 to 98.2
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0.6 to 0.9
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0