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EN 1.4415 Stainless Steel vs. Grade 9 Titanium

EN 1.4415 stainless steel belongs to the iron alloys classification, while grade 9 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 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17 to 20
11 to 17
Fatigue Strength, MPa 470 to 510
330 to 480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 520 to 570
430 to 580
Tensile Strength: Ultimate (UTS), MPa 830 to 930
700 to 960
Tensile Strength: Yield (Proof), MPa 730 to 840
540 to 830

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 790
330
Melting Completion (Liquidus), °C 1460
1640
Melting Onset (Solidus), °C 1420
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 19
8.1
Thermal Expansion, µm/m-K 9.9
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 3.6
36
Embodied Energy, MJ/kg 51
580
Embodied Water, L/kg 120
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
1380 to 3220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 29 to 33
43 to 60
Strength to Weight: Bending, points 25 to 27
39 to 48
Thermal Diffusivity, mm2/s 5.1
3.3
Thermal Shock Resistance, points 30 to 34
52 to 71

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
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 0.25
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 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.010
92.6 to 95.5
Vanadium (V), % 0.1 to 0.5
2.0 to 3.0
Residuals, % 0
0 to 0.4

Comparable Variants