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EN 1.4805 Stainless Steel vs. Grade 17 Titanium

EN 1.4805 stainless steel belongs to the iron alloys classification, while grade 17 titanium belongs to the titanium alloys. There are 26 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 1.4805 stainless steel and the bottom bar is grade 17 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 9.0
27
Fatigue Strength, MPa 130
160
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
38
Tensile Strength: Ultimate (UTS), MPa 490
270
Tensile Strength: Yield (Proof), MPa 250
210

Thermal Properties

Latent Heat of Fusion, J/g 310
420
Maximum Temperature: Mechanical, °C 1000
320
Melting Completion (Liquidus), °C 1390
1660
Melting Onset (Solidus), °C 1350
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 14
23
Thermal Expansion, µm/m-K 16
8.7

Otherwise Unclassified Properties

Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 4.7
36
Embodied Energy, MJ/kg 66
600
Embodied Water, L/kg 180
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
68
Resilience: Unit (Modulus of Resilience), kJ/m3 150
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 3.7
9.3
Thermal Shock Resistance, points 11
21

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.080
Chromium (Cr), % 19 to 23
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 44.9 to 56.8
0 to 0.2
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.015 to 99.96
Residuals, % 0
0 to 0.4