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EN 1.4477 Stainless Steel vs. EN-MC21310 Magnesium

EN 1.4477 stainless steel belongs to the iron alloys classification, while EN-MC21310 magnesium belongs to the magnesium 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 1.4477 stainless steel and the bottom bar is EN-MC21310 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
60
Elastic (Young's, Tensile) Modulus, GPa 210
45
Elongation at Break, % 22 to 23
9.0
Fatigue Strength, MPa 420 to 490
86
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
17
Shear Strength, MPa 550 to 580
120
Tensile Strength: Ultimate (UTS), MPa 880 to 930
200
Tensile Strength: Yield (Proof), MPa 620 to 730
120

Thermal Properties

Latent Heat of Fusion, J/g 300
360
Maximum Temperature: Mechanical, °C 1100
100
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
1000
Thermal Conductivity, W/m-K 13
89
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
22
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.7
1.6
Embodied Carbon, kg CO2/kg material 3.7
23
Embodied Energy, MJ/kg 52
160
Embodied Water, L/kg 190
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
16
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
160
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
73
Strength to Weight: Axial, points 31 to 33
34
Strength to Weight: Bending, points 26 to 27
47
Thermal Diffusivity, mm2/s 3.5
55
Thermal Shock Resistance, points 23 to 25
12

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.6
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.8
0 to 0.010
Iron (Fe), % 56.6 to 63.6
0 to 0.0050
Magnesium (Mg), % 0
95.2 to 97.4
Manganese (Mn), % 0.8 to 1.5
0.1 to 0.7
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0 to 0.0020
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0.7 to 1.2
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010