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R56401 Titanium vs. EN 1.4515 Stainless Steel

R56401 titanium belongs to the titanium alloys classification, while EN 1.4515 stainless steel belongs to the iron 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 R56401 titanium and the bottom bar is EN 1.4515 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.1
25
Fatigue Strength, MPa 480
380
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 940
730
Tensile Strength: Yield (Proof), MPa 850
550

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 340
1100
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
16
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
19
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 38
3.8
Embodied Energy, MJ/kg 610
53
Embodied Water, L/kg 200
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
170
Resilience: Unit (Modulus of Resilience), kJ/m3 3440
730
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 59
26
Strength to Weight: Bending, points 48
23
Thermal Diffusivity, mm2/s 2.9
4.3
Thermal Shock Resistance, points 67
20

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
24.5 to 26.5
Copper (Cu), % 0
0.8 to 1.3
Hydrogen (H), % 0 to 0.012
0
Iron (Fe), % 0 to 0.25
58.4 to 66.6
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
5.5 to 7.0
Nitrogen (N), % 0 to 0.050
0.12 to 0.25
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0