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AWS BMg-1 vs. AISI 201L Stainless Steel

AWS BMg-1 belongs to the magnesium alloys classification, while AISI 201L stainless steel belongs to the iron alloys. There are 30 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 AISI 201L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
200
Elongation at Break, % 3.8
22 to 46
Fatigue Strength, MPa 72
270 to 530
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 100
520 to 660
Tensile Strength: Ultimate (UTS), MPa 180
740 to 1040
Tensile Strength: Yield (Proof), MPa 110
290 to 790

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 130
880
Melting Completion (Liquidus), °C 600
1410
Melting Onset (Solidus), °C 440
1370
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 76
15
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 55
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 1.8
7.7
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 160
38
Embodied Water, L/kg 980
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 120
220 to 1570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
25
Strength to Weight: Axial, points 27
27 to 37
Strength to Weight: Bending, points 39
24 to 30
Thermal Diffusivity, mm2/s 43
4.0
Thermal Shock Resistance, points 10
16 to 23

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
67.9 to 75
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
5.5 to 7.5
Nickel (Ni), % 0 to 0.0050
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.050
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0