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EN 1.0070 Steel vs. Grade 15 Titanium

EN 1.0070 steel belongs to the iron alloys classification, while grade 15 titanium belongs to the titanium alloys. There are 30 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 1.0070 steel and the bottom bar is grade 15 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 9.1
20
Fatigue Strength, MPa 210
290
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Shear Strength, MPa 440
340
Tensile Strength: Ultimate (UTS), MPa 740
540
Tensile Strength: Yield (Proof), MPa 350
430

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 400
320
Melting Completion (Liquidus), °C 1470
1660
Melting Onset (Solidus), °C 1430
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 53
21
Thermal Expansion, µm/m-K 12
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.8
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.4
32
Embodied Energy, MJ/kg 18
520
Embodied Water, L/kg 45
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
100
Resilience: Unit (Modulus of Resilience), kJ/m3 320
870
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 26
33
Strength to Weight: Bending, points 23
33
Thermal Diffusivity, mm2/s 14
8.4
Thermal Shock Resistance, points 23
41

Alloy Composition

Carbon (C), % 0
0 to 0.080
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 99.876 to 100
0 to 0.3
Nickel (Ni), % 0
0.4 to 0.6
Nitrogen (N), % 0 to 0.014
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.055
0
Ruthenium (Ru), % 0
0.040 to 0.060
Sulfur (S), % 0 to 0.055
0
Titanium (Ti), % 0
98.2 to 99.56
Residuals, % 0
0 to 0.4