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SAE-AISI H42 Steel vs. Grade 37 Titanium

SAE-AISI H42 steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium 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.

For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
390

Thermal Properties

Latent Heat of Fusion, J/g 260
420
Melting Completion (Liquidus), °C 1620
1650
Melting Onset (Solidus), °C 1570
1600
Specific Heat Capacity, J/kg-K 440
550
Thermal Conductivity, W/m-K 24
21
Thermal Expansion, µm/m-K 12
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 24
36
Density, g/cm3 8.4
4.5
Embodied Carbon, kg CO2/kg material 8.8
31
Embodied Energy, MJ/kg 130
500
Embodied Water, L/kg 98
120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 23 to 65
24
Strength to Weight: Bending, points 21 to 42
26
Thermal Diffusivity, mm2/s 6.5
8.4
Thermal Shock Resistance, points 20 to 57
29

Alloy Composition

Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0.55 to 0.7
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
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
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
96.9 to 99
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0
Residuals, % 0
0 to 0.4