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SAE-AISI A2 Steel vs. Grade 5 Titanium

SAE-AISI A2 steel belongs to the iron alloys classification, while grade 5 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A2 steel and the bottom bar is grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
40
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
1000 to 1190

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1650
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 38
6.8
Thermal Expansion, µm/m-K 11
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
36
Density, g/cm3 7.8
4.4
Embodied Carbon, kg CO2/kg material 2.7
38
Embodied Energy, MJ/kg 38
610
Embodied Water, L/kg 73
200

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 25 to 73
62 to 75
Strength to Weight: Bending, points 23 to 46
50 to 56
Thermal Diffusivity, mm2/s 10
2.7
Thermal Shock Resistance, points 25 to 71
76 to 91

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 1.0 to 1.1
0 to 0.080
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 89.4 to 93.3
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
87.4 to 91
Vanadium (V), % 0.15 to 0.5
3.5 to 4.5
Yttrium (Y), % 0
0 to 0.0050
Residuals, % 0
0 to 0.4

Comparable Variants