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EN 1.4865 Stainless Steel vs. R56406 Titanium

EN 1.4865 stainless steel belongs to the iron alloys classification, while R56406 titanium belongs to the titanium alloys. There are 29 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 1.4865 stainless steel and the bottom bar is R56406 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 6.8
9.1
Fatigue Strength, MPa 120
480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Tensile Strength: Ultimate (UTS), MPa 470
980
Tensile Strength: Yield (Proof), MPa 250
850

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1020
340
Melting Completion (Liquidus), °C 1380
1610
Melting Onset (Solidus), °C 1330
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 12
7.1
Thermal Expansion, µm/m-K 15
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 33
36
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.8
38
Embodied Energy, MJ/kg 81
610
Embodied Water, L/kg 200
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
85
Resilience: Unit (Modulus of Resilience), kJ/m3 160
3420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 16
61
Strength to Weight: Bending, points 17
49
Thermal Diffusivity, mm2/s 3.1
2.8
Thermal Shock Resistance, points 11
69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.3 to 0.5
0 to 0.1
Chromium (Cr), % 18 to 21
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 34.4 to 44.7
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 36 to 39
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5