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EN 1.4594 Stainless Steel vs. EN-MC21210 Magnesium

EN 1.4594 stainless steel belongs to the iron alloys classification, while EN-MC21210 magnesium belongs to the magnesium alloys. There are 30 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 1.4594 stainless steel and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 11 to 17
14
Fatigue Strength, MPa 490 to 620
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Shear Strength, MPa 620 to 700
110
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
190
Tensile Strength: Yield (Proof), MPa 810 to 1140
90

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Maximum Temperature: Mechanical, °C 820
100
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
130

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.9
1.6
Embodied Carbon, kg CO2/kg material 3.2
24
Embodied Energy, MJ/kg 45
160
Embodied Water, L/kg 130
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
22
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
72
Strength to Weight: Axial, points 36 to 41
32
Strength to Weight: Bending, points 29 to 31
44
Thermal Diffusivity, mm2/s 4.4
76
Thermal Shock Resistance, points 34 to 39
11

Alloy Composition

Aluminum (Al), % 0
1.6 to 2.6
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 1.2 to 2.0
0 to 0.010
Iron (Fe), % 72.6 to 79.5
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 0 to 1.0
0.1 to 0.7
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.0 to 6.0
0 to 0.0020
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010