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QE22A Magnesium vs. AISI 202 Stainless Steel

QE22A magnesium belongs to the magnesium alloys classification, while AISI 202 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 202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.4
14 to 45
Fatigue Strength, MPa 110
290 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150
490 to 590
Tensile Strength: Ultimate (UTS), MPa 250
700 to 980
Tensile Strength: Yield (Proof), MPa 190
310 to 580

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Maximum Temperature: Mechanical, °C 250
910
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 570
1360
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
2.8
Embodied Energy, MJ/kg 220
40

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 400
250 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 60
25
Strength to Weight: Axial, points 36
25 to 35
Strength to Weight: Bending, points 46
23 to 29
Thermal Diffusivity, mm2/s 59
4.0
Thermal Shock Resistance, points 15
15 to 21

Alloy Composition


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Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
63.5 to 71.5
Magnesium (Mg), % 93.1 to 95.8
0
Manganese (Mn), % 0
7.5 to 10
Nickel (Ni), % 0 to 0.010
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.060
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