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EN 1.4477 Stainless Steel vs. EN-MC65120 Magnesium

EN 1.4477 stainless steel belongs to the iron alloys classification, while EN-MC65120 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-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
55
Elastic (Young's, Tensile) Modulus, GPa 210
45
Elongation at Break, % 22 to 23
3.1
Fatigue Strength, MPa 420 to 490
80
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
17
Shear Strength, MPa 550 to 580
92
Tensile Strength: Ultimate (UTS), MPa 880 to 930
160
Tensile Strength: Yield (Proof), MPa 620 to 730
110

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
590
Melting Onset (Solidus), °C 1380
520
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 13
100
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 20
25
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 3.7
25
Embodied Energy, MJ/kg 52
190
Embodied Water, L/kg 190
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
140
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
62
Strength to Weight: Axial, points 31 to 33
23
Strength to Weight: Bending, points 26 to 27
34
Thermal Diffusivity, mm2/s 3.5
56
Thermal Shock Resistance, points 23 to 25
9.8

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.8
0 to 0.030
Iron (Fe), % 56.6 to 63.6
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0.8 to 1.5
0 to 0.15
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0 to 0.0050
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.010
Sulfur (S), % 0 to 0.015
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010