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AWS BMg-1 vs. S28200 Stainless Steel

AWS BMg-1 belongs to the magnesium alloys classification, while S28200 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, 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 S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
200
Elongation at Break, % 3.8
45
Fatigue Strength, MPa 72
430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 100
610
Tensile Strength: Ultimate (UTS), MPa 180
870
Tensile Strength: Yield (Proof), MPa 110
460

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 130
900
Melting Completion (Liquidus), °C 600
1380
Melting Onset (Solidus), °C 440
1330
Specific Heat Capacity, J/kg-K 980
480
Thermal Expansion, µm/m-K 26
18

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 1.8
7.6
Embodied Carbon, kg CO2/kg material 22
2.8
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
330
Resilience: Unit (Modulus of Resilience), kJ/m3 120
540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 66
26
Strength to Weight: Axial, points 27
32
Strength to Weight: Bending, points 39
27
Thermal Shock Resistance, points 10
17

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 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.050
0.75 to 1.3
Iron (Fe), % 0 to 0.0050
57.7 to 64.1
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 0 to 0.0050
0
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0