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AISI 301LN Stainless Steel vs. AZ63A Magnesium

AISI 301LN stainless steel belongs to the iron alloys classification, while AZ63A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
46
Elongation at Break, % 23 to 51
2.2 to 8.0
Fatigue Strength, MPa 270 to 520
76 to 83
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
18
Shear Strength, MPa 450 to 670
110 to 160
Tensile Strength: Ultimate (UTS), MPa 630 to 1060
190 to 270
Tensile Strength: Yield (Proof), MPa 270 to 770
81 to 120

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Maximum Temperature: Mechanical, °C 890
120
Melting Completion (Liquidus), °C 1430
610
Melting Onset (Solidus), °C 1380
450
Specific Heat Capacity, J/kg-K 480
980
Thermal Conductivity, W/m-K 15
52 to 65
Thermal Expansion, µm/m-K 16
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
59 to 74

Otherwise Unclassified Properties

Base Metal Price, % relative 13
12
Density, g/cm3 7.8
1.8
Embodied Carbon, kg CO2/kg material 2.7
22
Embodied Energy, MJ/kg 39
150
Embodied Water, L/kg 130
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 290
3.7 to 16
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1520
71 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
66
Strength to Weight: Axial, points 22 to 38
29 to 41
Strength to Weight: Bending, points 21 to 30
40 to 51
Thermal Diffusivity, mm2/s 4.0
29 to 37
Thermal Shock Resistance, points 14 to 24
11 to 16

Alloy Composition

Aluminum (Al), % 0
5.3 to 6.7
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 70.7 to 77.9
0
Magnesium (Mg), % 0
88.6 to 92.1
Manganese (Mn), % 0 to 2.0
0.15 to 0.35
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 to 0.3
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
2.5 to 3.5
Residuals, % 0
0 to 0.3