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EN 1.4662 Stainless Steel vs. ISO-WD32350 Magnesium

EN 1.4662 stainless steel belongs to the iron alloys classification, while ISO-WD32350 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.4662 stainless steel and the bottom bar is ISO-WD32350 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 28
5.7 to 10
Fatigue Strength, MPa 430 to 450
120 to 130
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
18
Shear Strength, MPa 520 to 540
150 to 170
Tensile Strength: Ultimate (UTS), MPa 810 to 830
250 to 290
Tensile Strength: Yield (Proof), MPa 580 to 620
140 to 180

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Mechanical, °C 1090
95
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
990
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 13
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
130

Otherwise Unclassified Properties

Base Metal Price, % relative 16
12
Density, g/cm3 7.7
1.7
Embodied Carbon, kg CO2/kg material 3.2
23
Embodied Energy, MJ/kg 45
160
Embodied Water, L/kg 170
960

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
14 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 840 to 940
210 to 380
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
68
Strength to Weight: Axial, points 29 to 30
39 to 46
Strength to Weight: Bending, points 25
50 to 55
Thermal Diffusivity, mm2/s 3.9
73
Thermal Shock Resistance, points 22
16 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 0.1 to 0.8
0 to 0.1
Iron (Fe), % 62.6 to 70.2
0 to 0.060
Magnesium (Mg), % 0
95.7 to 97.7
Manganese (Mn), % 2.5 to 4.0
0.6 to 1.3
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 3.0 to 4.5
0 to 0.0050
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.7
0 to 0.1
Sulfur (S), % 0 to 0.0050
0
Zinc (Zn), % 0
1.8 to 2.3
Residuals, % 0
0 to 0.3