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EN 1.7366 Steel vs. Grade 38 Titanium

EN 1.7366 steel belongs to the iron alloys classification, while grade 38 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7366 steel and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 17 to 19
11
Fatigue Strength, MPa 160 to 320
530
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
40
Shear Strength, MPa 290 to 440
600
Tensile Strength: Ultimate (UTS), MPa 460 to 710
1000
Tensile Strength: Yield (Proof), MPa 230 to 480
910

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 510
330
Melting Completion (Liquidus), °C 1460
1620
Melting Onset (Solidus), °C 1420
1570
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 40
8.0
Thermal Expansion, µm/m-K 13
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.7
35
Embodied Energy, MJ/kg 23
560
Embodied Water, L/kg 69
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
3840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 16 to 25
62
Strength to Weight: Bending, points 17 to 23
49
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 13 to 20
72

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.5
Carbon (C), % 0 to 0.18
0 to 0.080
Chromium (Cr), % 4.0 to 6.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 91.9 to 95.3
1.2 to 1.8
Manganese (Mn), % 0.3 to 0.8
0
Molybdenum (Mo), % 0.45 to 0.65
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4