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AWS BMg-1 vs. EN 1.6554 Steel

AWS BMg-1 belongs to the magnesium alloys classification, while EN 1.6554 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Elongation at Break, % 3.8
17 to 21
Fatigue Strength, MPa 72
380 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Tensile Strength: Ultimate (UTS), MPa 180
780 to 930
Tensile Strength: Yield (Proof), MPa 110
550 to 790

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
40
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 55
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.4
Density, g/cm3 1.8
7.9
Embodied Carbon, kg CO2/kg material 22
1.7
Embodied Energy, MJ/kg 160
22
Embodied Water, L/kg 980
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
810 to 1650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
27 to 33
Strength to Weight: Bending, points 39
24 to 27
Thermal Diffusivity, mm2/s 43
11
Thermal Shock Resistance, points 10
23 to 27

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
0.23 to 0.28
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.0050
94.6 to 97.3
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.0050
1.0 to 2.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.050
0 to 0.6
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0