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Grade 35 Titanium vs. SAE-AISI 1340 Steel

Grade 35 titanium belongs to the titanium alloys classification, while SAE-AISI 1340 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 35 titanium and the bottom bar is SAE-AISI 1340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 5.6
11 to 23
Fatigue Strength, MPa 330
220 to 390
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
72
Shear Strength, MPa 580
340 to 440
Tensile Strength: Ultimate (UTS), MPa 1000
540 to 730
Tensile Strength: Yield (Proof), MPa 630
300 to 620

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400
Melting Completion (Liquidus), °C 1630
1450
Melting Onset (Solidus), °C 1580
1410
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.4
51
Thermal Expansion, µm/m-K 9.3
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.9
Density, g/cm3 4.6
7.8
Embodied Carbon, kg CO2/kg material 33
1.4
Embodied Energy, MJ/kg 530
19
Embodied Water, L/kg 170
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
240 to 1040
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 61
19 to 26
Strength to Weight: Bending, points 49
19 to 23
Thermal Diffusivity, mm2/s 3.0
14
Thermal Shock Resistance, points 70
17 to 23

Alloy Composition

Aluminum (Al), % 4.0 to 5.0
0
Carbon (C), % 0 to 0.080
0.38 to 0.43
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.2 to 0.8
97.2 to 97.9
Manganese (Mn), % 0
1.6 to 1.9
Molybdenum (Mo), % 1.5 to 2.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.2 to 0.4
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 88.4 to 93
0
Vanadium (V), % 1.1 to 2.1
0
Residuals, % 0 to 0.4
0