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Grade 23 Titanium vs. SAE-AISI H42 Steel

Grade 23 titanium belongs to the titanium alloys classification, while SAE-AISI H42 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 23 titanium and the bottom bar is SAE-AISI H42 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
77
Tensile Strength: Ultimate (UTS), MPa 930 to 940
700 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Melting Completion (Liquidus), °C 1610
1620
Melting Onset (Solidus), °C 1560
1570
Specific Heat Capacity, J/kg-K 560
440
Thermal Conductivity, W/m-K 7.1
24
Thermal Expansion, µm/m-K 9.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
24
Density, g/cm3 4.4
8.4
Embodied Carbon, kg CO2/kg material 38
8.8
Embodied Energy, MJ/kg 610
130
Embodied Water, L/kg 200
98

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 58 to 59
23 to 65
Strength to Weight: Bending, points 48
21 to 42
Thermal Diffusivity, mm2/s 2.9
6.5
Thermal Shock Resistance, points 67 to 68
20 to 57

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0.55 to 0.7
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.013
0
Iron (Fe), % 0 to 0.25
79.3 to 83.8
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
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
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 88.1 to 91
0
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 3.5 to 4.5
1.8 to 2.2
Residuals, % 0 to 0.4
0

Comparable Variants