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Grade 6 Titanium vs. ASTM A209 Steel

Grade 6 titanium belongs to the titanium alloys classification, while ASTM A209 steel belongs to the iron alloys. There are 30 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 6 titanium and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
34
Fatigue Strength, MPa 290
180 to 200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 530
280 to 310
Tensile Strength: Ultimate (UTS), MPa 890
420 to 460
Tensile Strength: Yield (Proof), MPa 840
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 310
410
Melting Completion (Liquidus), °C 1580
1470
Melting Onset (Solidus), °C 1530
1420 to 1430
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
50
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.4
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 30
1.5
Embodied Energy, MJ/kg 480
20
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
130 to 170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 55
15 to 16
Strength to Weight: Bending, points 46
16 to 17
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 65
12 to 14