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Titanium 6-7 vs. ASTM A27 Cast Steel

Titanium 6-7 belongs to the titanium alloys classification, while ASTM A27 cast steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 11
25 to 27
Fatigue Strength, MPa 530
170 to 230
Poisson's Ratio 0.33
0.29
Reduction in Area, % 29
34 to 40
Shear Modulus, GPa 45
73
Tensile Strength: Ultimate (UTS), MPa 1020
460 to 550
Tensile Strength: Yield (Proof), MPa 900
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 300
400
Melting Completion (Liquidus), °C 1700
1460
Melting Onset (Solidus), °C 1650
1420
Specific Heat Capacity, J/kg-K 520
470
Thermal Expansion, µm/m-K 9.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
1.8
Density, g/cm3 5.1
7.8
Embodied Carbon, kg CO2/kg material 34
1.4
Embodied Energy, MJ/kg 540
18
Embodied Water, L/kg 190
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
96 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
140 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 32
24
Strength to Weight: Axial, points 56
16 to 20
Strength to Weight: Bending, points 44
17 to 19
Thermal Shock Resistance, points 66
15 to 18