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Grade 300 Maraging Steel vs. Grade 33 Titanium

Grade 300 maraging steel belongs to the iron alloys classification, while grade 33 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 6.5 to 18
23
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 75
41
Shear Strength, MPa 640 to 1190
240
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
390
Tensile Strength: Yield (Proof), MPa 760 to 1990
350

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
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
55
Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 5.1
33
Embodied Energy, MJ/kg 68
530
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
86
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 35 to 68
24
Strength to Weight: Bending, points 28 to 43
26
Thermal Shock Resistance, points 31 to 62
30

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
Chromium (Cr), % 0
0.1 to 0.2
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
Nickel (Ni), % 18 to 19
0.35 to 0.55
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Phosphorus (P), % 0 to 0.010
0
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.5 to 0.8
98.1 to 99.52
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.4