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EN 1.4658 Stainless Steel vs. Titanium 6-5-0.5

EN 1.4658 stainless steel belongs to the iron alloys classification, while titanium 6-5-0.5 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is titanium 6-5-0.5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Elongation at Break, % 28
6.7
Fatigue Strength, MPa 530
530
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 81
40
Shear Strength, MPa 580
630
Tensile Strength: Ultimate (UTS), MPa 900
1080
Tensile Strength: Yield (Proof), MPa 730
990

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
300
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 16
4.2
Thermal Expansion, µm/m-K 13
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 25
41
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 4.5
33
Embodied Energy, MJ/kg 61
540
Embodied Water, L/kg 200
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
71
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
4630
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 32
67
Strength to Weight: Bending, points 26
52
Thermal Diffusivity, mm2/s 4.3
1.7
Thermal Shock Resistance, points 24
79

Alloy Composition


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Aluminum (Al), % 0
5.7 to 6.3
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 50.9 to 63.7
0 to 0.2
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 4.0 to 5.0
0.25 to 0.75
Nickel (Ni), % 5.5 to 9.5
0
Nitrogen (N), % 0.3 to 0.5
0 to 0.050
Oxygen (O), % 0
0 to 0.19
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
85.6 to 90.1
Zirconium (Zr), % 0
4.0 to 6.0
Residuals, % 0
0 to 0.4