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AWS BMg-1 vs. N08810 Stainless Steel

AWS BMg-1 belongs to the magnesium alloys classification, while N08810 stainless 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 N08810 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
200
Elongation at Break, % 3.8
33
Fatigue Strength, MPa 72
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 100
340
Tensile Strength: Ultimate (UTS), MPa 180
520
Tensile Strength: Yield (Proof), MPa 110
200

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 130
1100
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 440
1350
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 76
12
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 55
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.8
8.0
Embodied Carbon, kg CO2/kg material 22
5.3
Embodied Energy, MJ/kg 160
76
Embodied Water, L/kg 980
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
140
Resilience: Unit (Modulus of Resilience), kJ/m3 120
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 39
18
Thermal Diffusivity, mm2/s 43
3.0
Thermal Shock Resistance, points 10
13

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0.15 to 0.6
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0.050 to 0.1
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0 to 0.050
0 to 0.75
Iron (Fe), % 0 to 0.0050
39.5 to 50.7
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 1.5
Nickel (Ni), % 0 to 0.0050
30 to 35
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0