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S44735 Stainless Steel vs. ZC63A Magnesium

S44735 stainless steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 S44735 stainless steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
60
Elastic (Young's, Tensile) Modulus, GPa 210
48
Elongation at Break, % 21
3.3
Fatigue Strength, MPa 300
94
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 82
19
Shear Strength, MPa 390
130
Tensile Strength: Ultimate (UTS), MPa 630
220
Tensile Strength: Yield (Proof), MPa 460
130

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
98
Melting Completion (Liquidus), °C 1460
550
Melting Onset (Solidus), °C 1420
470
Specific Heat Capacity, J/kg-K 480
950
Thermal Expansion, µm/m-K 11
26

Otherwise Unclassified Properties

Base Metal Price, % relative 21
13
Density, g/cm3 7.7
2.1
Embodied Carbon, kg CO2/kg material 4.4
22
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 180
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 520
190
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
58
Strength to Weight: Axial, points 23
29
Strength to Weight: Bending, points 21
38
Thermal Shock Resistance, points 20
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0
2.4 to 3.0
Iron (Fe), % 60.7 to 68.4
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0 to 1.0
0.25 to 0.75
Molybdenum (Mo), % 3.6 to 4.2
0
Nickel (Ni), % 0 to 1.0
0 to 0.010
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.0
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3