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Grade 9 Titanium vs. SAE-AISI H24 Steel

Grade 9 titanium belongs to the titanium alloys classification, while SAE-AISI H24 steel belongs to the iron 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 grade 9 titanium and the bottom bar is SAE-AISI H24 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 700 to 960
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Melting Completion (Liquidus), °C 1640
1750
Melting Onset (Solidus), °C 1590
1700
Specific Heat Capacity, J/kg-K 550
420
Thermal Conductivity, W/m-K 8.1
27
Thermal Expansion, µm/m-K 9.1
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
37
Density, g/cm3 4.5
9.1
Embodied Carbon, kg CO2/kg material 36
6.1
Embodied Energy, MJ/kg 580
93
Embodied Water, L/kg 150
78

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 43 to 60
22 to 61
Strength to Weight: Bending, points 39 to 48
20 to 39
Thermal Diffusivity, mm2/s 3.3
6.9
Thermal Shock Resistance, points 52 to 71
22 to 61

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0.42 to 0.53
Chromium (Cr), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
78 to 82.4
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 92.6 to 95.5
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 2.0 to 3.0
0.4 to 0.6
Residuals, % 0 to 0.4
0

Comparable Variants