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AM60B Magnesium vs. AISI 305 Stainless Steel

AM60B 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 (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 AISI 305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
34 to 45
Fatigue Strength, MPa 96
210 to 280
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 140
400 to 470
Tensile Strength: Ultimate (UTS), MPa 230
580 to 710
Tensile Strength: Yield (Proof), MPa 130
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 120
540
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
16
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.2
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 990
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
200 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
130 to 320
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
20 to 25
Strength to Weight: Bending, points 50
20 to 23
Thermal Diffusivity, mm2/s 37
4.2
Thermal Shock Resistance, points 14
13 to 15

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
65.1 to 72.5
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
10.5 to 13
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0