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R56401 Titanium vs. ASTM A27 Cast Steel

R56401 titanium belongs to the titanium alloys classification, while ASTM A27 cast steel belongs to the iron alloys. There are 30 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 R56401 titanium and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.1
25 to 27
Fatigue Strength, MPa 480
170 to 230
Poisson's Ratio 0.32
0.29
Reduction in Area, % 17
34 to 40
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 940
460 to 550
Tensile Strength: Yield (Proof), MPa 850
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
400
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1420
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
52
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.0 to 7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 38
1.4
Embodied Energy, MJ/kg 610
18
Embodied Water, L/kg 200
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
96 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 3440
140 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 59
16 to 20
Strength to Weight: Bending, points 48
17 to 19
Thermal Diffusivity, mm2/s 2.9
14
Thermal Shock Resistance, points 67
15 to 18