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EN 1.5535 Steel vs. Grade 25 Titanium

EN 1.5535 steel belongs to the iron alloys classification, while grade 25 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 1.5535 steel and the bottom bar is grade 25 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 11 to 22
11
Fatigue Strength, MPa 210 to 320
550
Poisson's Ratio 0.29
0.32
Reduction in Area, % 62 to 72
29
Shear Modulus, GPa 73
40
Shear Strength, MPa 320 to 370
600
Tensile Strength: Ultimate (UTS), MPa 450 to 1490
1000
Tensile Strength: Yield (Proof), MPa 300 to 500
940

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 400
340
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1420
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 50
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.4
43
Embodied Energy, MJ/kg 19
700
Embodied Water, L/kg 48
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 250
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 680
4220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 16 to 53
62
Strength to Weight: Bending, points 17 to 37
50
Thermal Diffusivity, mm2/s 13
2.8
Thermal Shock Resistance, points 13 to 44
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0 to 0.080
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 97.6 to 98.9
0 to 0.4
Manganese (Mn), % 0.9 to 1.2
0
Nickel (Ni), % 0
0.3 to 0.8
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
86.7 to 90.6
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4