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Grade 33 Titanium vs. ASTM A204 Steel

Grade 33 titanium belongs to the titanium alloys classification, while ASTM A204 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 33 titanium and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
18 to 22
Fatigue Strength, MPa 250
200 to 220
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Shear Strength, MPa 240
330 to 360
Tensile Strength: Ultimate (UTS), MPa 390
520 to 590
Tensile Strength: Yield (Proof), MPa 350
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
410
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1610
1420 to 1430
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
52
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.4
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 33
1.5
Embodied Energy, MJ/kg 530
20
Embodied Water, L/kg 200
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 590
220 to 290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 24
18 to 21
Strength to Weight: Bending, points 26
18 to 20
Thermal Diffusivity, mm2/s 8.7
14
Thermal Shock Resistance, points 30
15 to 17