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EN 1.1127 Steel vs. Grade 2 Titanium

EN 1.1127 steel belongs to the iron alloys classification, while grade 2 titanium belongs to the titanium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.1127 steel and the bottom bar is grade 2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
150
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 14 to 25
23
Fatigue Strength, MPa 280 to 370
250
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
38
Shear Strength, MPa 420 to 480
270
Tensile Strength: Ultimate (UTS), MPa 660 to 790
420
Tensile Strength: Yield (Proof), MPa 410 to 580
360

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 1410
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 49
22
Thermal Expansion, µm/m-K 12
9.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.5
31
Embodied Energy, MJ/kg 19
510
Embodied Water, L/kg 49
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 140
92
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 880
600
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 23 to 28
26
Strength to Weight: Bending, points 22 to 24
28
Thermal Diffusivity, mm2/s 13
8.9
Thermal Shock Resistance, points 21 to 25
32

Alloy Composition

Carbon (C), % 0.34 to 0.42
0 to 0.080
Chromium (Cr), % 0 to 0.4
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 96.6 to 98.1
0 to 0.3
Manganese (Mn), % 1.4 to 1.7
0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
98.9 to 100
Residuals, % 0
0 to 0.4