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Grade 2 Titanium vs. ASTM Grade LC9 Steel

Grade 2 titanium belongs to the titanium alloys classification, while ASTM grade LC9 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 2 titanium and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
22
Fatigue Strength, MPa 250
420
Poisson's Ratio 0.32
0.29
Reduction in Area, % 37
34
Shear Modulus, GPa 38
73
Tensile Strength: Ultimate (UTS), MPa 420
660
Tensile Strength: Yield (Proof), MPa 360
590

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Maximum Temperature: Mechanical, °C 320
430
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
10

Otherwise Unclassified Properties

Base Metal Price, % relative 37
8.0
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
2.3
Embodied Energy, MJ/kg 510
31
Embodied Water, L/kg 110
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
140
Resilience: Unit (Modulus of Resilience), kJ/m3 600
920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 28
21
Thermal Shock Resistance, points 32
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.13
Chromium (Cr), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
87.4 to 91.5
Manganese (Mn), % 0
0 to 0.9
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
8.5 to 10
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.45
Sulfur (S), % 0
0 to 0.045
Titanium (Ti), % 98.9 to 100
0
Vanadium (V), % 0
0 to 0.030
Residuals, % 0 to 0.4
0