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Grade 15 Titanium vs. EN 1.4762 Stainless Steel

Grade 15 titanium belongs to the titanium alloys classification, while EN 1.4762 stainless steel belongs to the iron 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 grade 15 titanium and the bottom bar is EN 1.4762 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
13
Fatigue Strength, MPa 290
180
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 41
78
Shear Strength, MPa 340
370
Tensile Strength: Ultimate (UTS), MPa 540
620
Tensile Strength: Yield (Proof), MPa 430
310

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1150
Melting Completion (Liquidus), °C 1660
1410
Melting Onset (Solidus), °C 1610
1370
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 8.7
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 32
2.5
Embodied Energy, MJ/kg 520
37
Embodied Water, L/kg 210
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
67
Resilience: Unit (Modulus of Resilience), kJ/m3 870
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 33
23
Strength to Weight: Bending, points 33
21
Thermal Diffusivity, mm2/s 8.4
4.6
Thermal Shock Resistance, points 41
22

Alloy Composition


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Aluminum (Al), % 0
1.2 to 1.7
Carbon (C), % 0 to 0.080
0 to 0.12
Chromium (Cr), % 0
23 to 26
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
69.7 to 75.1
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0.4 to 0.6
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0.7 to 1.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.2 to 99.56
0
Residuals, % 0 to 0.4
0