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QE22A Magnesium vs. N08700 Stainless Steel

QE22A magnesium belongs to the magnesium alloys classification, while N08700 stainless steel belongs to the iron alloys. There are 29 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 QE22A magnesium and the bottom bar is N08700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
170
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.4
32
Fatigue Strength, MPa 110
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
79
Shear Strength, MPa 150
410
Tensile Strength: Ultimate (UTS), MPa 250
620
Tensile Strength: Yield (Proof), MPa 190
270

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 250
1100
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 27
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
1.9

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.1
Embodied Carbon, kg CO2/kg material 27
6.0
Embodied Energy, MJ/kg 220
82

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
160
Resilience: Unit (Modulus of Resilience), kJ/m3 400
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 60
24
Strength to Weight: Axial, points 36
21
Strength to Weight: Bending, points 46
20
Thermal Diffusivity, mm2/s 59
3.5
Thermal Shock Resistance, points 15
14

Alloy Composition


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Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0
42 to 52.7
Magnesium (Mg), % 93.1 to 95.8
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.3 to 5.0
Nickel (Ni), % 0 to 0.010
24 to 26
Niobium (Nb), % 0
0 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.8 to 2.5
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0