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ZC63A Magnesium vs. S20910 Stainless Steel

ZC63A magnesium belongs to the magnesium alloys classification, while S20910 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 ZC63A magnesium and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 48
200
Elongation at Break, % 3.3
14 to 39
Fatigue Strength, MPa 94
310 to 460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
79
Shear Strength, MPa 130
500 to 570
Tensile Strength: Ultimate (UTS), MPa 220
780 to 940
Tensile Strength: Yield (Proof), MPa 130
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 98
1080
Melting Completion (Liquidus), °C 550
1420
Melting Onset (Solidus), °C 470
1380
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
13
Thermal Expansion, µm/m-K 26
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
4.8
Embodied Energy, MJ/kg 150
68
Embodied Water, L/kg 920
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 190
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
28 to 33
Strength to Weight: Bending, points 38
24 to 27
Thermal Diffusivity, mm2/s 58
3.6
Thermal Shock Resistance, points 12
17 to 21

Alloy Composition


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Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0
52.1 to 62.1
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0 to 0.010
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0