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Grade 300 Maraging Steel vs. Grade 12 Titanium

Grade 300 maraging steel belongs to the iron alloys classification, while grade 12 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 6.5 to 18
21
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 75
39
Shear Strength, MPa 640 to 1190
330
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
530
Tensile Strength: Yield (Proof), MPa 760 to 1990
410

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Melting Completion (Liquidus), °C 1480
1660
Melting Onset (Solidus), °C 1430
1610
Specific Heat Capacity, J/kg-K 450
540
Thermal Expansion, µm/m-K 12
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
37
Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 5.1
31
Embodied Energy, MJ/kg 68
500
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 35 to 68
32
Strength to Weight: Bending, points 28 to 43
32
Thermal Shock Resistance, points 31 to 62
37

Alloy Composition

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 to 0.080
Cobalt (Co), % 8.5 to 9.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 65 to 68.4
0 to 0.3
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 4.6 to 5.2
0.2 to 0.4
Nickel (Ni), % 18 to 19
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.5 to 0.8
97.6 to 99.2
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.4