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Grade 27 Titanium vs. Grade 200 Maraging Steel

Grade 27 titanium belongs to the titanium alloys classification, while grade 200 maraging steel belongs to the iron 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 grade 27 titanium and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
9.1 to 18
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 41
74
Shear Strength, MPa 180
600 to 890
Tensile Strength: Ultimate (UTS), MPa 270
970 to 1500
Tensile Strength: Yield (Proof), MPa 230
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
460
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
31
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 33
4.5
Embodied Energy, MJ/kg 530
59
Embodied Water, L/kg 320
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 240
1240 to 5740
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 17
33 to 51
Strength to Weight: Bending, points 21
27 to 35
Thermal Shock Resistance, points 21
29 to 45

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
8.0 to 9.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
67.8 to 71.8
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
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
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99 to 99.92
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.4
0