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EN 1.4807 Stainless Steel vs. R56401 Titanium

EN 1.4807 stainless steel belongs to the iron alloys classification, while R56401 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4807 stainless steel and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 4.5
9.1
Fatigue Strength, MPa 120
480
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 75
40
Tensile Strength: Ultimate (UTS), MPa 480
940
Tensile Strength: Yield (Proof), MPa 250
850

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1000
340
Melting Completion (Liquidus), °C 1390
1610
Melting Onset (Solidus), °C 1350
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 39
36
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 6.8
38
Embodied Energy, MJ/kg 97
610
Embodied Water, L/kg 190
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
83
Resilience: Unit (Modulus of Resilience), kJ/m3 160
3440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 17
59
Strength to Weight: Bending, points 17
48
Thermal Diffusivity, mm2/s 3.2
2.9
Thermal Shock Resistance, points 12
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.3 to 0.5
0 to 0.080
Chromium (Cr), % 17 to 20
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 36.6 to 46.7
0 to 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
0
Niobium (Nb), % 1.0 to 1.8
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
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
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5