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Grade 27 Titanium vs. EN 1.5662 Steel

Grade 27 titanium belongs to the titanium alloys classification, while EN 1.5662 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is EN 1.5662 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
20
Fatigue Strength, MPa 170
380 to 450
Poisson's Ratio 0.32
0.29
Reduction in Area, % 34
56 to 57
Shear Modulus, GPa 41
73
Shear Strength, MPa 180
460 to 470
Tensile Strength: Ultimate (UTS), MPa 270
740 to 750
Tensile Strength: Yield (Proof), MPa 230
550 to 660

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
430
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 37
7.5
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 33
2.3
Embodied Energy, MJ/kg 530
31
Embodied Water, L/kg 320
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 240
810 to 1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 21
23
Thermal Shock Resistance, points 21
22

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
88.6 to 91.2
Manganese (Mn), % 0
0.3 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
8.5 to 10
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.020
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 99 to 99.92
0
Vanadium (V), % 0
0 to 0.050
Residuals, % 0 to 0.4
0