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Annealed 250 Maraging Steel vs. Annealed Grade 29 Titanium

Annealed 250 maraging steel belongs to the iron alloys classification, while annealed grade 29 titanium belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is annealed 250 maraging steel and the bottom bar is annealed grade 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 17
11
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 75
40
Shear Strength, MPa 600
560
Tensile Strength: Ultimate (UTS), MPa 970
930
Tensile Strength: Yield (Proof), MPa 660
870

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Melting Completion (Liquidus), °C 1480
1610
Melting Onset (Solidus), °C 1430
1560
Specific Heat Capacity, J/kg-K 450
560
Thermal Expansion, µm/m-K 12
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 32
36
Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 4.9
39
Embodied Energy, MJ/kg 65
640
Embodied Water, L/kg 140
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1120
3540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 33
58
Strength to Weight: Bending, points 26
47
Thermal Shock Resistance, points 29
68

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
5.5 to 6.5
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), % 7.0 to 8.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 66.3 to 71.1
0 to 0.25
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 17 to 19
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.010
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.3 to 0.5
88 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.4