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EN 1.3551 Steel vs. Grade 38 Titanium

EN 1.3551 steel belongs to the iron alloys classification, while grade 38 titanium belongs to the titanium alloys. There are 24 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 EN 1.3551 steel and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 75
40
Tensile Strength: Ultimate (UTS), MPa 720
1000

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 530
330
Melting Completion (Liquidus), °C 1490
1620
Melting Onset (Solidus), °C 1450
1570
Specific Heat Capacity, J/kg-K 460
550
Thermal Conductivity, W/m-K 36
8.0
Thermal Expansion, µm/m-K 13
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 4.9
35
Embodied Energy, MJ/kg 71
560
Embodied Water, L/kg 82
160

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 26
62
Strength to Weight: Bending, points 23
49
Thermal Diffusivity, mm2/s 9.8
3.2
Thermal Shock Resistance, points 21
72

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.5
Carbon (C), % 0.77 to 0.85
0 to 0.080
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 88.8 to 91.1
1.2 to 1.8
Manganese (Mn), % 0.15 to 0.35
0
Molybdenum (Mo), % 4.0 to 4.5
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
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
2.0 to 3.0
Residuals, % 0
0 to 0.4