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EN 1.4057 Stainless Steel vs. ZC63A Magnesium

EN 1.4057 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 1.4057 stainless steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
48
Elongation at Break, % 11 to 17
3.3
Fatigue Strength, MPa 320 to 430
94
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
19
Shear Strength, MPa 520 to 580
130
Tensile Strength: Ultimate (UTS), MPa 840 to 980
220
Tensile Strength: Yield (Proof), MPa 530 to 790
130

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 850
98
Melting Completion (Liquidus), °C 1440
550
Melting Onset (Solidus), °C 1390
470
Specific Heat Capacity, J/kg-K 480
950
Thermal Conductivity, W/m-K 25
120
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 7.7
2.1
Embodied Carbon, kg CO2/kg material 2.2
22
Embodied Energy, MJ/kg 32
150
Embodied Water, L/kg 120
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 130
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1610
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
58
Strength to Weight: Axial, points 30 to 35
29
Strength to Weight: Bending, points 26 to 28
38
Thermal Diffusivity, mm2/s 6.7
58
Thermal Shock Resistance, points 30 to 35
12

Alloy Composition

Carbon (C), % 0.12 to 0.22
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
2.4 to 3.0
Iron (Fe), % 77.7 to 83.4
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0 to 1.5
0.25 to 0.75
Nickel (Ni), % 1.5 to 2.5
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3