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Grade 1 Titanium vs. ASTM A217 Cast Steel

Grade 1 titanium belongs to the titanium alloys classification, while ASTM A217 cast steel belongs to the iron alloys. There are 31 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 1 titanium and the bottom bar is ASTM A217 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 28
21 to 27
Fatigue Strength, MPa 170
200 to 320
Poisson's Ratio 0.32
0.28 to 0.29
Reduction in Area, % 36
39 to 50
Shear Modulus, GPa 39
73 to 75
Tensile Strength: Ultimate (UTS), MPa 310
540 to 710
Tensile Strength: Yield (Proof), MPa 220
270 to 460

Thermal Properties

Latent Heat of Fusion, J/g 420
250 to 270
Maximum Temperature: Mechanical, °C 320
410 to 600
Melting Completion (Liquidus), °C 1660
1450 to 1460
Melting Onset (Solidus), °C 1610
1410 to 1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 20
26 to 50
Thermal Expansion, µm/m-K 8.8
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.3 to 9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.4 to 11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.4 to 7.0
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.5 to 2.1
Embodied Energy, MJ/kg 510
20 to 28
Embodied Water, L/kg 110
47 to 87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 230
190 to 570
Stiffness to Weight: Axial, points 13
13 to 14
Stiffness to Weight: Bending, points 35
24 to 25
Strength to Weight: Axial, points 19
19 to 25
Strength to Weight: Bending, points 23
19 to 23
Thermal Diffusivity, mm2/s 8.2
6.9 to 14
Thermal Shock Resistance, points 24
16 to 20