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EN 1.4415 Stainless Steel vs. Grade 26 Titanium

EN 1.4415 stainless steel belongs to the iron alloys classification, while grade 26 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 1.4415 stainless steel and the bottom bar is grade 26 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17 to 20
23
Fatigue Strength, MPa 470 to 510
250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 520 to 570
250
Tensile Strength: Ultimate (UTS), MPa 830 to 930
390
Tensile Strength: Yield (Proof), MPa 730 to 840
350

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 790
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 19
21
Thermal Expansion, µm/m-K 9.9
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 3.6
33
Embodied Energy, MJ/kg 51
530
Embodied Water, L/kg 120
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
85
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 29 to 33
24
Strength to Weight: Bending, points 25 to 27
26
Thermal Diffusivity, mm2/s 5.1
8.6
Thermal Shock Resistance, points 30 to 34
28

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 11.5 to 13.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 75.9 to 82.4
0 to 0.3
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 1.5 to 2.5
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.010
98.8 to 99.92
Vanadium (V), % 0.1 to 0.5
0
Residuals, % 0
0 to 0.4