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EN 1.7380 Steel vs. Grade C-3 Titanium

EN 1.7380 steel belongs to the iron alloys classification, while grade C-3 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7380 steel and the bottom bar is grade C-3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 19 to 20
13
Fatigue Strength, MPa 200 to 230
260
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
40
Tensile Strength: Ultimate (UTS), MPa 540 to 550
500
Tensile Strength: Yield (Proof), MPa 290 to 330
430

Thermal Properties

Latent Heat of Fusion, J/g 260
420
Maximum Temperature: Mechanical, °C 460
320
Melting Completion (Liquidus), °C 1470
1660
Melting Onset (Solidus), °C 1430
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 39
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.8
31
Embodied Energy, MJ/kg 23
510
Embodied Water, L/kg 59
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 98
65
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 280
880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 19 to 20
31
Strength to Weight: Bending, points 19
31
Thermal Diffusivity, mm2/s 11
8.5
Thermal Shock Resistance, points 15 to 16
39

Alloy Composition


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Carbon (C), % 0.080 to 0.14
0 to 0.1
Chromium (Cr), % 2.0 to 2.5
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 94.6 to 96.6
0 to 0.25
Manganese (Mn), % 0.4 to 0.8
0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4