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EN 1.4905 Stainless Steel vs. ZC63A Magnesium

EN 1.4905 stainless steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 1.4905 stainless steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
48
Elongation at Break, % 19
3.3
Fatigue Strength, MPa 330
94
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
19
Shear Strength, MPa 460
130
Tensile Strength: Ultimate (UTS), MPa 740
220
Tensile Strength: Yield (Proof), MPa 510
130

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 660
98
Melting Completion (Liquidus), °C 1480
550
Melting Onset (Solidus), °C 1440
470
Specific Heat Capacity, J/kg-K 470
950
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 11
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
32
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 7.9
2.1
Embodied Carbon, kg CO2/kg material 2.8
22
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 90
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 680
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 23
38
Thermal Diffusivity, mm2/s 7.0
58
Thermal Shock Resistance, points 25
12

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0
Chromium (Cr), % 8.5 to 9.5
0
Copper (Cu), % 0
2.4 to 3.0
Iron (Fe), % 86.2 to 88.8
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0.3 to 0.6
0.25 to 0.75
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
0 to 0.010
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.1 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.010
0
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3