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EN 1.6579 Steel vs. Grade 11 Titanium

EN 1.6579 steel belongs to the iron alloys classification, while grade 11 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.6579 steel and the bottom bar is grade 11 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 290
120
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 11 to 14
29
Fatigue Strength, MPa 380 to 570
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
38
Tensile Strength: Ultimate (UTS), MPa 850 to 980
310
Tensile Strength: Yield (Proof), MPa 600 to 910
230

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 440
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 39
22
Thermal Expansion, µm/m-K 13
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.7
47
Embodied Energy, MJ/kg 22
800
Embodied Water, L/kg 56
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
81
Resilience: Unit (Modulus of Resilience), kJ/m3 950 to 2210
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 30 to 35
19
Strength to Weight: Bending, points 25 to 28
22
Thermal Diffusivity, mm2/s 11
8.9
Thermal Shock Resistance, points 25 to 29
22

Alloy Composition

Carbon (C), % 0.32 to 0.38
0 to 0.080
Chromium (Cr), % 1.4 to 1.7
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 94.2 to 96.1
0 to 0.2
Manganese (Mn), % 0.6 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.35
0
Nickel (Ni), % 1.4 to 1.7
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.8 to 99.88
Residuals, % 0
0 to 0.4