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ZE41A Magnesium vs. S30415 Stainless Steel

ZE41A magnesium belongs to the magnesium alloys classification, while S30415 stainless steel belongs to the iron alloys. There are 31 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 ZE41A magnesium and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
190
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 3.3
45
Fatigue Strength, MPa 98
300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 150
470
Tensile Strength: Ultimate (UTS), MPa 210
670
Tensile Strength: Yield (Proof), MPa 140
330

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 150
940
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 540
1370
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
21
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
15
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 24
3.1
Embodied Energy, MJ/kg 170
43
Embodied Water, L/kg 940
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
250
Resilience: Unit (Modulus of Resilience), kJ/m3 220
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
25
Strength to Weight: Axial, points 31
24
Strength to Weight: Bending, points 41
22
Thermal Diffusivity, mm2/s 59
5.6
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
67.8 to 71.8
Magnesium (Mg), % 91.7 to 95.4
0
Manganese (Mn), % 0 to 0.15
0 to 0.8
Nickel (Ni), % 0 to 0.010
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0