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EN 1.5502 Steel vs. Grade 12 Titanium

EN 1.5502 steel belongs to the iron alloys classification, while grade 12 titanium belongs to the titanium alloys.

For each property being compared, the top bar is EN 1.5502 steel and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 160
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12 to 20
21
Fatigue Strength, MPa 190 to 290
280
Poisson's Ratio 0.29
0.32
Reduction in Area, % 62 to 76
28
Shear Modulus, GPa 73
39
Shear Strength, MPa 280 to 330
330
Tensile Strength: Ultimate (UTS), MPa 400 to 1380
530
Tensile Strength: Yield (Proof), MPa 270 to 440
410

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
21
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.4
31
Embodied Energy, MJ/kg 19
500
Embodied Water, L/kg 47
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41 to 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 520
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 14 to 49
32
Strength to Weight: Bending, points 15 to 35
32
Thermal Diffusivity, mm2/s 14
8.5
Thermal Shock Resistance, points 12 to 40
37

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.15 to 0.2
0 to 0.080
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 98 to 99.249
0 to 0.3
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
97.6 to 99.2
Residuals, % 0
0 to 0.4