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Grade 350 Maraging Steel vs. M1A Magnesium

Grade 350 maraging steel belongs to the iron alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 4.1 to 18
5.5
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
18
Shear Strength, MPa 710 to 1400
120
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
230
Tensile Strength: Yield (Proof), MPa 830 to 2300
130

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Melting Completion (Liquidus), °C 1470
610
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 450
990
Thermal Expansion, µm/m-K 12
26

Otherwise Unclassified Properties

Base Metal Price, % relative 39
12
Density, g/cm3 8.2
1.7
Embodied Carbon, kg CO2/kg material 5.6
24
Embodied Energy, MJ/kg 74
160
Embodied Water, L/kg 160
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
11
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
71
Strength to Weight: Axial, points 38 to 82
38
Strength to Weight: Bending, points 29 to 49
49
Thermal Shock Resistance, points 35 to 74
13

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0 to 0.3
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 11.5 to 12.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 61.2 to 64.6
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 0 to 0.1
1.2 to 2.0
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 to 0.1
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.3