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Grade 13 Titanium vs. SAE-AISI A2 Steel

Grade 13 titanium belongs to the titanium alloys classification, while SAE-AISI A2 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 grade 13 titanium and the bottom bar is SAE-AISI A2 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 41
74
Tensile Strength: Ultimate (UTS), MPa 310
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
38
Thermal Expansion, µm/m-K 8.7
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
5.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 32
2.7
Embodied Energy, MJ/kg 520
38
Embodied Water, L/kg 210
73

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 19
25 to 73
Strength to Weight: Bending, points 22
23 to 46
Thermal Diffusivity, mm2/s 8.9
10
Thermal Shock Resistance, points 24
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.080
1.0 to 1.1
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
89.4 to 93.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0.4 to 0.6
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.5 to 99.56
0
Vanadium (V), % 0
0.15 to 0.5
Residuals, % 0 to 0.4
0