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ZE41A Magnesium vs. AISI 305 Stainless Steel

ZE41A magnesium belongs to the magnesium alloys classification, while AISI 305 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 AISI 305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 3.3
34 to 45
Fatigue Strength, MPa 98
210 to 280
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 150
400 to 470
Tensile Strength: Ultimate (UTS), MPa 210
580 to 710
Tensile Strength: Yield (Proof), MPa 140
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 150
540
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 24
3.2
Embodied Energy, MJ/kg 170
45
Embodied Water, L/kg 940
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
200 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 220
130 to 320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
25
Strength to Weight: Axial, points 31
20 to 25
Strength to Weight: Bending, points 41
20 to 23
Thermal Diffusivity, mm2/s 59
4.2
Thermal Shock Resistance, points 12
13 to 15

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
65.1 to 72.5
Magnesium (Mg), % 91.7 to 95.4
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Nickel (Ni), % 0 to 0.010
10.5 to 13
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
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