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AWS BMg-1 vs. N08330 Stainless Steel

AWS BMg-1 belongs to the magnesium alloys classification, while N08330 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 N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
200
Elongation at Break, % 3.8
34
Fatigue Strength, MPa 72
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 100
360
Tensile Strength: Ultimate (UTS), MPa 180
550
Tensile Strength: Yield (Proof), MPa 110
230

Thermal Properties

Latent Heat of Fusion, J/g 350
310
Maximum Temperature: Mechanical, °C 130
1050
Melting Completion (Liquidus), °C 600
1390
Melting Onset (Solidus), °C 440
1340
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 76
12
Thermal Expansion, µm/m-K 26
16

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
32
Density, g/cm3 1.8
8.0
Embodied Carbon, kg CO2/kg material 22
5.4
Embodied Energy, MJ/kg 160
77
Embodied Water, L/kg 980
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 39
18
Thermal Diffusivity, mm2/s 43
3.1
Thermal Shock Resistance, points 10
13

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 0.080
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0 to 0.050
0 to 1.0
Iron (Fe), % 0 to 0.0050
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Nickel (Ni), % 0 to 0.0050
34 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.050
0.75 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0
0 to 0.025
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0