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Grade 16 Titanium vs. ASTM A225 Steel

Grade 16 titanium belongs to the titanium alloys classification, while ASTM A225 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 16 titanium and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
21 to 23
Fatigue Strength, MPa 240
330 to 390
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 38
73
Shear Strength, MPa 250
390 to 520
Tensile Strength: Ultimate (UTS), MPa 400
620 to 830
Tensile Strength: Yield (Proof), MPa 340
460 to 550

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
52
Thermal Expansion, µm/m-K 9.2
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.4

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 36
1.8
Embodied Energy, MJ/kg 600
24 to 25
Embodied Water, L/kg 230
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 550
580 to 820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 25
22 to 29
Strength to Weight: Bending, points 27
21 to 25
Thermal Diffusivity, mm2/s 8.9
14
Thermal Shock Resistance, points 29
18 to 24