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EN 1.6554 Steel vs. Grade 12 Titanium

EN 1.6554 steel belongs to the iron alloys classification, while grade 12 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6554 steel and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 17 to 21
21
Fatigue Strength, MPa 380 to 520
280
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
39
Tensile Strength: Ultimate (UTS), MPa 780 to 930
530
Tensile Strength: Yield (Proof), MPa 550 to 790
410

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 420
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 40
21
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.7
31
Embodied Energy, MJ/kg 22
500
Embodied Water, L/kg 53
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 27 to 33
32
Strength to Weight: Bending, points 24 to 27
32
Thermal Diffusivity, mm2/s 11
8.5
Thermal Shock Resistance, points 23 to 27
37

Alloy Composition


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Carbon (C), % 0.23 to 0.28
0 to 0.080
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 94.6 to 97.3
0 to 0.3
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0.2 to 0.3
0.2 to 0.4
Nickel (Ni), % 1.0 to 2.0
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
97.6 to 99.2
Vanadium (V), % 0 to 0.030
0
Residuals, % 0
0 to 0.4