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Grade 27 Titanium vs. EN 1.0308 Steel

Grade 27 titanium belongs to the titanium alloys classification, while EN 1.0308 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is EN 1.0308 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
7.8 to 28
Fatigue Strength, MPa 170
140 to 200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Shear Strength, MPa 180
230 to 260
Tensile Strength: Ultimate (UTS), MPa 270
360 to 440
Tensile Strength: Yield (Proof), MPa 230
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
51
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 33
1.4
Embodied Energy, MJ/kg 530
18
Embodied Water, L/kg 320
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
32 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 240
93 to 300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
13 to 16
Strength to Weight: Bending, points 21
14 to 16
Thermal Diffusivity, mm2/s 8.8
14
Thermal Shock Resistance, points 21
11 to 14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.17
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
98.2 to 100
Manganese (Mn), % 0
0 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.045
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.045
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0 to 0.4
0