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R56401 Titanium vs. EN 1.7390 Steel

R56401 titanium belongs to the titanium alloys classification, while EN 1.7390 steel belongs to the iron alloys. There are 31 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 R56401 titanium and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.1
16
Fatigue Strength, MPa 480
310
Poisson's Ratio 0.32
0.29
Reduction in Area, % 17
50
Shear Modulus, GPa 40
74
Shear Strength, MPa 560
440
Tensile Strength: Ultimate (UTS), MPa 940
710
Tensile Strength: Yield (Proof), MPa 850
480

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 340
510
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1420
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
40
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
4.3
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 38
1.7
Embodied Energy, MJ/kg 610
23
Embodied Water, L/kg 200
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
100
Resilience: Unit (Modulus of Resilience), kJ/m3 3440
600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 59
25
Strength to Weight: Bending, points 48
23
Thermal Diffusivity, mm2/s 2.9
11
Thermal Shock Resistance, points 67
20

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 0
4.0 to 6.0
Hydrogen (H), % 0 to 0.012
0
Iron (Fe), % 0 to 0.25
91.9 to 95.3
Manganese (Mn), % 0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0