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SAE-AISI A2 Steel vs. R56406 Titanium

SAE-AISI A2 steel belongs to the iron alloys classification, while R56406 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A2 steel and the bottom bar is R56406 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
980

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 38
7.1
Thermal Expansion, µm/m-K 11
9.6

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
4.5
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
61
Strength to Weight: Bending, points 23 to 46
49
Thermal Diffusivity, mm2/s 10
2.8
Thermal Shock Resistance, points 25 to 71
69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 1.0 to 1.1
0 to 0.1
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 0.3
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
88.1 to 91
Vanadium (V), % 0.15 to 0.5
3.5 to 4.5