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Grade 27 Titanium vs. SAE-AISI M62 Steel

Grade 27 titanium belongs to the titanium alloys classification, while SAE-AISI M62 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is SAE-AISI M62 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
79
Tensile Strength: Ultimate (UTS), MPa 270
830 to 2440

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1660
1650
Melting Onset (Solidus), °C 1610
1600
Specific Heat Capacity, J/kg-K 540
430
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
30
Density, g/cm3 4.5
8.5
Embodied Carbon, kg CO2/kg material 33
10
Embodied Energy, MJ/kg 530
150
Embodied Water, L/kg 320
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 17
27 to 80
Strength to Weight: Bending, points 21
23 to 47
Thermal Shock Resistance, points 21
24 to 71

Alloy Composition

Carbon (C), % 0 to 0.080
1.3 to 1.4
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
73.6 to 77.4
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
10 to 11
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99 to 99.92
0
Tungsten (W), % 0
5.8 to 6.5
Vanadium (V), % 0
1.8 to 2.1
Residuals, % 0 to 0.4
0