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Grade 27 Titanium vs. EN 1.4762 Stainless Steel

Grade 27 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 27 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, % 27
13
Fatigue Strength, MPa 170
180
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 41
78
Shear Strength, MPa 180
370
Tensile Strength: Ultimate (UTS), MPa 270
620
Tensile Strength: Yield (Proof), MPa 230
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 3.6
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 33
2.5
Embodied Energy, MJ/kg 530
37
Embodied Water, L/kg 320
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
67
Resilience: Unit (Modulus of Resilience), kJ/m3 240
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 8.8
4.6
Thermal Shock Resistance, points 21
22

Alloy Composition

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 0.2
69.7 to 75.1
Manganese (Mn), % 0
0 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0.7 to 1.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0 to 0.4
0