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Grade 12 Titanium vs. SAE-AISI H22 Steel

Grade 12 titanium belongs to the titanium alloys classification, while SAE-AISI H22 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 12 titanium and the bottom bar is SAE-AISI H22 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 39
77
Tensile Strength: Ultimate (UTS), MPa 530
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Melting Completion (Liquidus), °C 1660
1670
Melting Onset (Solidus), °C 1610
1620
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 21
31
Thermal Expansion, µm/m-K 9.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
28
Density, g/cm3 4.5
8.7
Embodied Carbon, kg CO2/kg material 31
4.9
Embodied Energy, MJ/kg 500
73
Embodied Water, L/kg 110
72

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 32
22 to 61
Strength to Weight: Bending, points 32
20 to 39
Thermal Diffusivity, mm2/s 8.5
8.2
Thermal Shock Resistance, points 37
22 to 60

Alloy Composition

Carbon (C), % 0 to 0.080
0.3 to 0.4
Chromium (Cr), % 0
1.8 to 3.8
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
82.2 to 87.4
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.6 to 0.9
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
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), % 97.6 to 99.2
0
Tungsten (W), % 0
10 to 11.8
Vanadium (V), % 0
0.25 to 0.5
Residuals, % 0 to 0.4
0