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AM60A Magnesium vs. AISI 302B Stainless Steel

AM60A magnesium belongs to the magnesium alloys classification, while AISI 302B 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 AM60A magnesium and the bottom bar is AISI 302B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
190
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 8.8
45
Fatigue Strength, MPa 70
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 130
410
Tensile Strength: Ultimate (UTS), MPa 230
580
Tensile Strength: Yield (Proof), MPa 130
230

Thermal Properties

Latent Heat of Fusion, J/g 350
320
Maximum Temperature: Mechanical, °C 120
930
Melting Completion (Liquidus), °C 620
1400
Melting Onset (Solidus), °C 550
1360
Specific Heat Capacity, J/kg-K 1000
490
Thermal Conductivity, W/m-K 62
17
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 69
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 990
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
21
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 37
4.4
Thermal Shock Resistance, points 14
13

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
65.7 to 73
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 2.0
Nickel (Ni), % 0 to 0.030
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
2.0 to 3.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0