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AM50A Magnesium vs. EN 1.4057 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while EN 1.4057 stainless steel belongs to the iron alloys. There are 30 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 AM50A magnesium and the bottom bar is EN 1.4057 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
11 to 17
Fatigue Strength, MPa 70
320 to 430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 120
520 to 580
Tensile Strength: Ultimate (UTS), MPa 210
840 to 980
Tensile Strength: Yield (Proof), MPa 120
530 to 790

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
850
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 570
1390
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 65
25
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 23
2.2
Embodied Energy, MJ/kg 160
32
Embodied Water, L/kg 990
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
96 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 150
700 to 1610
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
30 to 35
Strength to Weight: Bending, points 47
26 to 28
Thermal Diffusivity, mm2/s 39
6.7
Thermal Shock Resistance, points 13
30 to 35

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0.12 to 0.22
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
77.7 to 83.4
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 1.5
Nickel (Ni), % 0 to 0.0020
1.5 to 2.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.22
0