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AM60A Magnesium vs. S17400 Stainless Steel

AM60A magnesium belongs to the magnesium alloys classification, while S17400 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 AM60A magnesium and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 8.8
11 to 21
Fatigue Strength, MPa 70
380 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
75
Shear Strength, MPa 130
570 to 830
Tensile Strength: Ultimate (UTS), MPa 230
910 to 1390
Tensile Strength: Yield (Proof), MPa 130
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
850
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 62
17
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 69
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 990
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 190
880 to 4060
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
32 to 49
Strength to Weight: Bending, points 49
27 to 35
Thermal Diffusivity, mm2/s 37
4.5
Thermal Shock Resistance, points 14
30 to 46

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.35
3.0 to 5.0
Iron (Fe), % 0
70.4 to 78.9
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 1.0
Nickel (Ni), % 0 to 0.030
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0