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EN-MC21320 Magnesium vs. AISI 310 Stainless Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while AISI 310 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 EN-MC21320 magnesium and the bottom bar is AISI 310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
180 to 220
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 7.5
34 to 45
Fatigue Strength, MPa 95
240 to 280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 18
78
Shear Strength, MPa 130
420 to 470
Tensile Strength: Ultimate (UTS), MPa 230
600 to 710
Tensile Strength: Yield (Proof), MPa 140
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Maximum Temperature: Mechanical, °C 110
1040
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 66
15
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 91
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 23
4.3
Embodied Energy, MJ/kg 160
61
Embodied Water, L/kg 980
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 200
170 to 310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 38
21 to 25
Strength to Weight: Bending, points 50
20 to 22
Thermal Diffusivity, mm2/s 40
3.9
Thermal Shock Resistance, points 13
14 to 17

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.25
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
48.2 to 57
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 2.0
Nickel (Ni), % 0 to 0.0020
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.5 to 1.5
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0