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R56401 Titanium vs. SAE-AISI A3 Steel

R56401 titanium belongs to the titanium alloys classification, while SAE-AISI A3 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R56401 titanium and the bottom bar is SAE-AISI A3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 940
700 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
37
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
6.0
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 38
4.4
Embodied Energy, MJ/kg 610
67
Embodied Water, L/kg 200
78

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 59
25 to 77
Strength to Weight: Bending, points 48
23 to 48
Thermal Diffusivity, mm2/s 2.9
10
Thermal Shock Resistance, points 67
23 to 70

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
1.2 to 1.3
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.012
0
Iron (Fe), % 0 to 0.25
88.7 to 92
Manganese (Mn), % 0
0.4 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0.8 to 1.4