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SAE-AISI H42 Steel vs. Grade 19 Titanium

SAE-AISI H42 steel belongs to the iron alloys classification, while grade 19 titanium belongs to the titanium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is grade 19 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
47
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
890 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Melting Completion (Liquidus), °C 1620
1660
Melting Onset (Solidus), °C 1570
1600
Specific Heat Capacity, J/kg-K 440
520
Thermal Conductivity, W/m-K 24
6.2
Thermal Expansion, µm/m-K 12
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 24
45
Density, g/cm3 8.4
5.0
Embodied Carbon, kg CO2/kg material 8.8
47
Embodied Energy, MJ/kg 130
760
Embodied Water, L/kg 98
230

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
33
Strength to Weight: Axial, points 23 to 65
49 to 72
Strength to Weight: Bending, points 21 to 42
41 to 53
Thermal Diffusivity, mm2/s 6.5
2.4
Thermal Shock Resistance, points 20 to 57
57 to 83

Alloy Composition

Aluminum (Al), % 0
3.0 to 4.0
Carbon (C), % 0.55 to 0.7
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
5.5 to 6.5
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 79.3 to 83.8
0 to 0.3
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.5 to 5.5
3.5 to 4.5
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Phosphorus (P), % 0 to 0.030
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
71.1 to 77
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
7.5 to 8.5
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4

Comparable Variants