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AWS BMg-1 vs. EN 1.0303 Steel

AWS BMg-1 belongs to the magnesium alloys classification, while EN 1.0303 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 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Elongation at Break, % 3.8
12 to 25
Fatigue Strength, MPa 72
150 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 100
220 to 260
Tensile Strength: Ultimate (UTS), MPa 180
290 to 410
Tensile Strength: Yield (Proof), MPa 110
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 130
400
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 440
1430
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 76
53
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 55
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.8
7.9
Embodied Carbon, kg CO2/kg material 22
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 980
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 120
110 to 270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
10 to 15
Strength to Weight: Bending, points 39
12 to 16
Thermal Diffusivity, mm2/s 43
14
Thermal Shock Resistance, points 10
9.2 to 13

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0.020 to 0.060
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0.020 to 0.060
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
99.335 to 99.71
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0.25 to 0.4
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.050
0 to 0.1
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0