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QE22A Magnesium vs. AISI 201L Stainless Steel

QE22A magnesium belongs to the magnesium alloys classification, while AISI 201L stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, 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 AISI 201L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
190 to 320
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.4
22 to 46
Fatigue Strength, MPa 110
270 to 530
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150
520 to 660
Tensile Strength: Ultimate (UTS), MPa 250
740 to 1040
Tensile Strength: Yield (Proof), MPa 190
290 to 790

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 250
880
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.9

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.7
Embodied Carbon, kg CO2/kg material 27
2.6
Embodied Energy, MJ/kg 220
38

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 400
220 to 1570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 60
25
Strength to Weight: Axial, points 36
27 to 37
Strength to Weight: Bending, points 46
24 to 30
Thermal Diffusivity, mm2/s 59
4.0
Thermal Shock Resistance, points 15
16 to 23

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
67.9 to 75
Magnesium (Mg), % 93.1 to 95.8
0
Manganese (Mn), % 0
5.5 to 7.5
Nickel (Ni), % 0 to 0.010
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
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