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Grade 350 Maraging Steel vs. Grade 25 Titanium

Grade 350 maraging steel belongs to the iron alloys classification, while grade 25 titanium belongs to the titanium alloys. There are 22 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 350 maraging steel and the bottom bar is grade 25 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 4.1 to 18
11
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 75
40
Shear Strength, MPa 710 to 1400
600
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
1000
Tensile Strength: Yield (Proof), MPa 830 to 2300
940

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Melting Completion (Liquidus), °C 1470
1610
Melting Onset (Solidus), °C 1420
1560
Specific Heat Capacity, J/kg-K 450
560
Thermal Expansion, µm/m-K 12
9.6

Otherwise Unclassified Properties

Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 5.6
43
Embodied Energy, MJ/kg 74
700
Embodied Water, L/kg 160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 38 to 82
62
Strength to Weight: Bending, points 29 to 49
50
Thermal Shock Resistance, points 35 to 74
71

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
5.5 to 6.8
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), % 11.5 to 12.5
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 61.2 to 64.6
0 to 0.4
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0.3 to 0.8
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.3 to 1.6
86.7 to 90.6
Vanadium (V), % 0
3.5 to 4.5
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.4