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EN 1.4415 Stainless Steel vs. Grade 4 Titanium

EN 1.4415 stainless steel belongs to the iron alloys classification, while grade 4 titanium belongs to the titanium alloys. There are 31 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 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17 to 20
17
Fatigue Strength, MPa 470 to 510
340
Impact Strength: V-Notched Charpy, J 91 to 110
23
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 520 to 570
390
Tensile Strength: Ultimate (UTS), MPa 830 to 930
640
Tensile Strength: Yield (Proof), MPa 730 to 840
530

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
19
Thermal Expansion, µm/m-K 9.9
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 3.6
31
Embodied Energy, MJ/kg 51
500
Embodied Water, L/kg 120
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 29 to 33
40
Strength to Weight: Bending, points 25 to 27
37
Thermal Diffusivity, mm2/s 5.1
7.6
Thermal Shock Resistance, points 30 to 34
46

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 0.5
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 0.050
Oxygen (O), % 0
0 to 0.4
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
98.6 to 100
Vanadium (V), % 0.1 to 0.5
0
Residuals, % 0
0 to 0.4