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Grade 1 Titanium vs. ASTM A588 Steel

Grade 1 titanium belongs to the titanium alloys classification, while ASTM A588 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is ASTM A588 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
170
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 28
22
Fatigue Strength, MPa 170
270
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 200
350
Tensile Strength: Ultimate (UTS), MPa 310
550
Tensile Strength: Yield (Proof), MPa 220
390

Thermal Properties

Latent Heat of Fusion, J/g 420
250 to 260
Maximum Temperature: Mechanical, °C 320
410
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410 to 1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 20
43 to 44
Thermal Expansion, µm/m-K 8.8
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.3 to 2.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.5 to 1.6
Embodied Energy, MJ/kg 510
20 to 22
Embodied Water, L/kg 110
50 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 8.2
12
Thermal Shock Resistance, points 24
16