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Grade 29 Titanium vs. SAE-AISI H24 Steel

Grade 29 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 29 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 930 to 940
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Melting Completion (Liquidus), °C 1610
1750
Melting Onset (Solidus), °C 1560
1700
Specific Heat Capacity, J/kg-K 560
420
Thermal Conductivity, W/m-K 7.3
27
Thermal Expansion, µm/m-K 9.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
37
Density, g/cm3 4.5
9.1
Embodied Carbon, kg CO2/kg material 39
6.1
Embodied Energy, MJ/kg 640
93
Embodied Water, L/kg 410
78

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 58 to 59
22 to 61
Strength to Weight: Bending, points 47 to 48
20 to 39
Thermal Diffusivity, mm2/s 2.9
6.9
Thermal Shock Resistance, points 68 to 69
22 to 61

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
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 0.13
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 88 to 90.9
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 3.5 to 4.5
0.4 to 0.6
Residuals, % 0 to 0.4
0

Comparable Variants