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Grade 6 Titanium vs. ASTM A572 Steel

Grade 6 titanium belongs to the titanium alloys classification, while ASTM A572 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 6 titanium and the bottom bar is ASTM A572 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
18 to 25
Fatigue Strength, MPa 290
240 to 340
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 530
300 to 380
Tensile Strength: Ultimate (UTS), MPa 890
470 to 620
Tensile Strength: Yield (Proof), MPa 840
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 310
400
Melting Completion (Liquidus), °C 1580
1460
Melting Onset (Solidus), °C 1530
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
51
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.0
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
1.6
Embodied Energy, MJ/kg 480
22
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
290 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 55
17 to 22
Strength to Weight: Bending, points 46
17 to 21
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 65
14 to 18