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AM60B Magnesium vs. S30435 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while S30435 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 AM60B magnesium and the bottom bar is S30435 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
160
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
51
Fatigue Strength, MPa 96
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 140
370
Tensile Strength: Ultimate (UTS), MPa 230
510
Tensile Strength: Yield (Proof), MPa 130
170

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
900
Melting Completion (Liquidus), °C 620
1420
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 990
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
77
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
18
Strength to Weight: Bending, points 50
18
Thermal Diffusivity, mm2/s 37
4.2
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.010
1.5 to 3.0
Iron (Fe), % 0 to 0.0050
66.9 to 75.5
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 2.0
Nickel (Ni), % 0 to 0.0020
7.0 to 9.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0