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Grade 350 Maraging Steel vs. QE22A Magnesium

Grade 350 maraging steel belongs to the iron alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (14, 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 grade 350 maraging steel and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 750 to 2400
350
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 4.1 to 18
2.4
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
17
Shear Strength, MPa 710 to 1400
150
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
250
Tensile Strength: Yield (Proof), MPa 830 to 2300
190

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Melting Completion (Liquidus), °C 1470
640
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 450
970
Thermal Expansion, µm/m-K 12
27

Otherwise Unclassified Properties

Density, g/cm3 8.2
2.0
Embodied Carbon, kg CO2/kg material 5.6
27
Embodied Energy, MJ/kg 74
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
5.5
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
60
Strength to Weight: Axial, points 38 to 82
36
Strength to Weight: Bending, points 29 to 49
46
Thermal Shock Resistance, points 35 to 74
15

Alloy Composition


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Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 11.5 to 12.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 61.2 to 64.6
0
Magnesium (Mg), % 0
93.1 to 95.8
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0 to 0.010
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.3 to 1.6
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zirconium (Zr), % 0 to 0.020
0.4 to 1.0
Residuals, % 0
0 to 0.3