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EN-MC95310 Magnesium vs. AISI 304 Stainless Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while AISI 304 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-MC95310 magnesium and the bottom bar is AISI 304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
170 to 360
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
8.0 to 43
Fatigue Strength, MPa 110
210 to 440
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 160
400 to 690
Tensile Strength: Ultimate (UTS), MPa 280
580 to 1180
Tensile Strength: Yield (Proof), MPa 190
230 to 860

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 170
710
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 25
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
3.0
Embodied Energy, MJ/kg 260
43
Embodied Water, L/kg 900
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
86 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 420
140 to 1870
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
21 to 42
Strength to Weight: Bending, points 49
20 to 32
Thermal Diffusivity, mm2/s 28
4.2
Thermal Shock Resistance, points 18
12 to 25

Alloy Composition


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Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
66.5 to 74
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Nickel (Ni), % 0 to 0.0050
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0