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Grade 30 Titanium vs. SAE-AISI H24 Steel

Grade 30 titanium belongs to the titanium alloys classification, while SAE-AISI H24 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, 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 30 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 41
78
Tensile Strength: Ultimate (UTS), MPa 390
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 420
240
Melting Completion (Liquidus), °C 1660
1750
Melting Onset (Solidus), °C 1610
1700
Specific Heat Capacity, J/kg-K 540
420
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.1
Embodied Carbon, kg CO2/kg material 36
6.1
Embodied Energy, MJ/kg 600
93
Embodied Water, L/kg 230
78

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 24
22 to 61
Strength to Weight: Bending, points 26
20 to 39
Thermal Diffusivity, mm2/s 8.6
6.9
Thermal Shock Resistance, points 30
22 to 61

Alloy Composition

Carbon (C), % 0 to 0.080
0.42 to 0.53
Chromium (Cr), % 0
2.5 to 3.5
Cobalt (Co), % 0.2 to 0.8
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
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 0.25
0
Palladium (Pd), % 0.040 to 0.080
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), % 98 to 99.76
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6
Residuals, % 0 to 0.4
0