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AISI 301LN Stainless Steel vs. QE22A Magnesium

AISI 301LN stainless steel belongs to the iron alloys classification, while QE22A magnesium belongs to the magnesium 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 AISI 301LN stainless steel and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
80
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 23 to 51
2.4
Fatigue Strength, MPa 270 to 520
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Shear Strength, MPa 450 to 670
150
Tensile Strength: Ultimate (UTS), MPa 630 to 1060
250
Tensile Strength: Yield (Proof), MPa 270 to 770
190

Thermal Properties

Latent Heat of Fusion, J/g 280
340
Maximum Temperature: Mechanical, °C 890
250
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1380
570
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
120

Otherwise Unclassified Properties

Density, g/cm3 7.8
2.0
Embodied Carbon, kg CO2/kg material 2.7
27
Embodied Energy, MJ/kg 39
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 290
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1520
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
60
Strength to Weight: Axial, points 22 to 38
36
Strength to Weight: Bending, points 21 to 30
46
Thermal Diffusivity, mm2/s 4.0
59
Thermal Shock Resistance, points 14 to 24
15

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 70.7 to 77.9
0
Magnesium (Mg), % 0
93.1 to 95.8
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 6.0 to 8.0
0 to 0.010
Nitrogen (N), % 0.070 to 0.2
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3