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ZC63A Magnesium vs. AISI 304 Stainless Steel

ZC63A magnesium belongs to the magnesium alloys classification, while AISI 304 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 AISI 304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
170 to 360
Elastic (Young's, Tensile) Modulus, GPa 48
200
Elongation at Break, % 3.3
8.0 to 43
Fatigue Strength, MPa 94
210 to 440
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
77
Shear Strength, MPa 130
400 to 690
Tensile Strength: Ultimate (UTS), MPa 220
580 to 1180
Tensile Strength: Yield (Proof), MPa 130
230 to 860

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 98
710
Melting Completion (Liquidus), °C 550
1450
Melting Onset (Solidus), °C 470
1400
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
16
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
3.0
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 920
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
86 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140 to 1870
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
21 to 42
Strength to Weight: Bending, points 38
20 to 32
Thermal Diffusivity, mm2/s 58
4.2
Thermal Shock Resistance, points 12
12 to 25

Alloy Composition


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Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0
66.5 to 74
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 2.0
Nickel (Ni), % 0 to 0.010
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0