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EN 1.5501 Steel vs. Grade 7 Titanium

EN 1.5501 steel belongs to the iron alloys classification, while grade 7 titanium belongs to the titanium alloys. There are 31 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 1.5501 steel and the bottom bar is grade 7 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 150
150
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12 to 17
24
Fatigue Strength, MPa 180 to 270
250
Poisson's Ratio 0.29
0.32
Reduction in Area, % 63 to 73
34
Shear Modulus, GPa 73
38
Shear Strength, MPa 270 to 310
270
Tensile Strength: Ultimate (UTS), MPa 390 to 510
420
Tensile Strength: Yield (Proof), MPa 260 to 420
340

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 52
22
Thermal Expansion, µm/m-K 13
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
7.2

Otherwise Unclassified Properties

Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.4
47
Embodied Energy, MJ/kg 18
800
Embodied Water, L/kg 46
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 83
95
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 460
560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 14 to 18
26
Strength to Weight: Bending, points 15 to 18
28
Thermal Diffusivity, mm2/s 14
8.9
Thermal Shock Resistance, points 11 to 15
31

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.13 to 0.16
0 to 0.080
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 98.4 to 99.269
0 to 0.3
Manganese (Mn), % 0.6 to 0.8
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
98.7 to 99.88
Residuals, % 0
0 to 0.4