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AWS BMg-1 vs. EN 1.5521 Steel

AWS BMg-1 belongs to the magnesium alloys classification, while EN 1.5521 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.5521 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Elongation at Break, % 3.8
11 to 21
Fatigue Strength, MPa 72
210 to 310
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 100
310 to 360
Tensile Strength: Ultimate (UTS), MPa 180
430 to 1390
Tensile Strength: Yield (Proof), MPa 110
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 130
400
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
51
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 55
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
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
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
44 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 120
250 to 630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
15 to 49
Strength to Weight: Bending, points 39
16 to 35
Thermal Diffusivity, mm2/s 43
14
Thermal Shock Resistance, points 10
13 to 41

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.16 to 0.2
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.0050
98 to 98.9
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0.9 to 1.2
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.050
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0