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AISI 201LN Stainless Steel vs. EZ33A Magnesium

AISI 201LN stainless steel belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 31 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 201LN stainless steel and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
55
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 25 to 51
2.6
Fatigue Strength, MPa 340 to 540
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Shear Strength, MPa 530 to 680
140
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
150
Tensile Strength: Yield (Proof), MPa 350 to 770
100

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 880
250
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
570
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.6
25
Embodied Energy, MJ/kg 38
190
Embodied Water, L/kg 140
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 27 to 38
22
Strength to Weight: Bending, points 24 to 30
33
Thermal Diffusivity, mm2/s 4.0
54
Thermal Shock Resistance, points 16 to 23
9.2

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
0 to 0.1
Iron (Fe), % 67.9 to 73.5
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 6.4 to 7.5
0
Nickel (Ni), % 4.0 to 5.0
0 to 0.010
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.015
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3