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Grade 2 Titanium vs. ASTM A299 Steel

Grade 2 titanium belongs to the titanium alloys classification, while ASTM A299 steel belongs to the iron alloys. There are 31 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 2 titanium and the bottom bar is ASTM A299 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
21 to 22
Fatigue Strength, MPa 250
230 to 250
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 38
73
Shear Strength, MPa 270
370 to 390
Tensile Strength: Ultimate (UTS), MPa 420
590 to 620
Tensile Strength: Yield (Proof), MPa 360
330 to 360

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 22
51
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.9
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.4
Embodied Energy, MJ/kg 510
19
Embodied Water, L/kg 110
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
110
Resilience: Unit (Modulus of Resilience), kJ/m3 600
290 to 350
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
21 to 22
Strength to Weight: Bending, points 28
20 to 21
Thermal Diffusivity, mm2/s 8.9
14
Thermal Shock Resistance, points 32
17 to 18