MakeItFrom.com
Menu (ESC)

Grade 18 Titanium vs. SAE-AISI H42 Steel

Grade 18 titanium belongs to the titanium alloys classification, while SAE-AISI H42 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.

For each property being compared, the top bar is grade 18 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 690 to 980
700 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Melting Completion (Liquidus), °C 1640
1620
Melting Onset (Solidus), °C 1590
1570
Specific Heat Capacity, J/kg-K 550
440
Thermal Conductivity, W/m-K 8.3
24
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 41
8.8
Embodied Energy, MJ/kg 670
130
Embodied Water, L/kg 270
98

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 43 to 61
23 to 65
Strength to Weight: Bending, points 39 to 49
21 to 42
Thermal Diffusivity, mm2/s 3.4
6.5
Thermal Shock Resistance, points 47 to 67
20 to 57

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
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 0.015
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 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.030
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 92.5 to 95.5
0
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 2.0 to 3.0
1.8 to 2.2
Residuals, % 0 to 0.4
0

Comparable Variants