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SAE-AISI T1 Steel vs. R56401 Titanium

SAE-AISI T1 steel belongs to the iron alloys classification, while R56401 titanium belongs to the titanium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is SAE-AISI T1 steel and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
940

Thermal Properties

Latent Heat of Fusion, J/g 240
410
Melting Completion (Liquidus), °C 1810
1610
Melting Onset (Solidus), °C 1750
1560
Specific Heat Capacity, J/kg-K 410
560
Thermal Conductivity, W/m-K 20
7.1
Thermal Expansion, µm/m-K 12
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 45
36
Density, g/cm3 9.3
4.5
Embodied Carbon, kg CO2/kg material 8.2
38
Embodied Energy, MJ/kg 130
610
Embodied Water, L/kg 90
200

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
35
Strength to Weight: Axial, points 23 to 64
59
Strength to Weight: Bending, points 20 to 40
48
Thermal Diffusivity, mm2/s 5.2
2.9
Thermal Shock Resistance, points 23 to 64
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.65 to 0.8
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 73.2 to 77.2
0 to 0.25
Manganese (Mn), % 0.1 to 0.4
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.5 to 91
Tungsten (W), % 17.3 to 18.8
0
Vanadium (V), % 0.9 to 1.3
3.5 to 4.5