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EN 1.6311 Steel vs. Grade 27 Titanium

EN 1.6311 steel belongs to the iron alloys classification, while grade 27 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 1.6311 steel and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 19
27
Fatigue Strength, MPa 340
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Shear Strength, MPa 400
180
Tensile Strength: Ultimate (UTS), MPa 650
270
Tensile Strength: Yield (Proof), MPa 490
230

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 410
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 39
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.6
33
Embodied Energy, MJ/kg 22
530
Embodied Water, L/kg 51
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
70
Resilience: Unit (Modulus of Resilience), kJ/m3 650
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 10
8.8
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.15 to 0.23
0 to 0.080
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 95.9 to 98
0 to 0.2
Manganese (Mn), % 1.0 to 1.5
0
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0.4 to 0.8
0
Nitrogen (N), % 0 to 0.012
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.035
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
99 to 99.92
Vanadium (V), % 0 to 0.020
0
Residuals, % 0
0 to 0.4