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EN 1.4855 Stainless Steel vs. Grade 5 Titanium

EN 1.4855 stainless steel belongs to the iron alloys classification, while grade 5 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4855 stainless steel and the bottom bar is grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 4.6
8.6 to 11
Fatigue Strength, MPa 120
530 to 630
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 500
1000 to 1190
Tensile Strength: Yield (Proof), MPa 250
910 to 1110

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1050
330
Melting Completion (Liquidus), °C 1400
1610
Melting Onset (Solidus), °C 1350
1650
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 14
6.8
Thermal Expansion, µm/m-K 16
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 7.8
4.4
Embodied Carbon, kg CO2/kg material 5.9
38
Embodied Energy, MJ/kg 85
610
Embodied Water, L/kg 200
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
3980 to 5880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 18
62 to 75
Strength to Weight: Bending, points 18
50 to 56
Thermal Diffusivity, mm2/s 3.7
2.7
Thermal Shock Resistance, points 11
76 to 91

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.3 to 0.5
0 to 0.080
Chromium (Cr), % 23 to 25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 42.6 to 51.9
0 to 0.4
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 25
0
Niobium (Nb), % 0.8 to 1.8
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
87.4 to 91
Vanadium (V), % 0
3.5 to 4.5
Yttrium (Y), % 0
0 to 0.0050
Residuals, % 0
0 to 0.4