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AWS BMg-1 vs. EN 1.4910 Stainless Steel

AWS BMg-1 belongs to the magnesium alloys classification, while EN 1.4910 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 1.4910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
200
Elongation at Break, % 3.8
41
Fatigue Strength, MPa 72
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
78
Shear Strength, MPa 100
450
Tensile Strength: Ultimate (UTS), MPa 180
650
Tensile Strength: Yield (Proof), MPa 110
290

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 130
950
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 440
1400
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 76
16
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 55
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
20
Density, g/cm3 1.8
7.9
Embodied Carbon, kg CO2/kg material 22
3.9
Embodied Energy, MJ/kg 160
54
Embodied Water, L/kg 980
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
220
Resilience: Unit (Modulus of Resilience), kJ/m3 120
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
25
Strength to Weight: Axial, points 27
23
Strength to Weight: Bending, points 39
21
Thermal Diffusivity, mm2/s 43
4.3
Thermal Shock Resistance, points 10
14

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
0.0015 to 0.0050
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
62 to 69.9
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.0050
12 to 14
Nitrogen (N), % 0
0.1 to 0.18
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0