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Grade 1 Titanium vs. Grade 250 Maraging Steel

Grade 1 titanium belongs to the titanium alloys classification, while grade 250 maraging steel belongs to the iron 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 1 titanium and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 28
7.3 to 17
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 39
75
Shear Strength, MPa 200
600 to 1060
Tensile Strength: Ultimate (UTS), MPa 310
970 to 1800
Tensile Strength: Yield (Proof), MPa 220
660 to 1740

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Melting Completion (Liquidus), °C 1660
1480
Melting Onset (Solidus), °C 1610
1430
Specific Heat Capacity, J/kg-K 540
450
Thermal Expansion, µm/m-K 8.8
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
32
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 31
4.9
Embodied Energy, MJ/kg 510
65
Embodied Water, L/kg 110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
130 to 150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 19
33 to 61
Strength to Weight: Bending, points 23
26 to 40
Thermal Shock Resistance, points 24
29 to 54

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0 to 0.030
Cobalt (Co), % 0
7.0 to 8.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
66.3 to 71.1
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0
17 to 19
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.095 to 100
0.3 to 0.5
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.4
0