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Grade 200 Maraging Steel vs. Grade 27 Titanium

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

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
Cobalt (Co), % 8.0 to 9.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 67.8 to 71.8
0 to 0.2
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 17 to 19
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
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), % 0.15 to 0.25
99 to 99.92
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.4