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EN 1.1191 Steel vs. Grade 3 Titanium

EN 1.1191 steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is grade 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 16 to 17
21
Fatigue Strength, MPa 210 to 290
300
Impact Strength: V-Notched Charpy, J 16 to 29
62
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
39
Shear Strength, MPa 380 to 430
320
Tensile Strength: Ultimate (UTS), MPa 630 to 700
510
Tensile Strength: Yield (Proof), MPa 310 to 440
440

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 400
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 48
21
Thermal Expansion, µm/m-K 12
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.4
31
Embodied Energy, MJ/kg 19
510
Embodied Water, L/kg 47
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
910
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 22 to 25
32
Strength to Weight: Bending, points 21 to 22
32
Thermal Diffusivity, mm2/s 13
8.6
Thermal Shock Resistance, points 20 to 22
37

Alloy Composition

Carbon (C), % 0.42 to 0.5
0 to 0.080
Chromium (Cr), % 0 to 0.4
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 97.3 to 99.08
0 to 0.3
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4