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S35140 Stainless Steel vs. Grade 9 Titanium

S35140 stainless steel belongs to the iron alloys classification, while grade 9 titanium belongs to the titanium alloys. There are 30 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 S35140 stainless steel and the bottom bar is grade 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
11 to 17
Fatigue Strength, MPa 250
330 to 480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Shear Strength, MPa 460
430 to 580
Tensile Strength: Ultimate (UTS), MPa 690
700 to 960
Tensile Strength: Yield (Proof), MPa 310
540 to 830

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1420
1640
Melting Onset (Solidus), °C 1370
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 14
8.1
Thermal Expansion, µm/m-K 16
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
37
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.5
36
Embodied Energy, MJ/kg 78
580
Embodied Water, L/kg 190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1380 to 3220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 24
43 to 60
Strength to Weight: Bending, points 22
39 to 48
Thermal Diffusivity, mm2/s 3.7
3.3
Thermal Shock Resistance, points 16
52 to 71

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 20 to 22
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 44.1 to 52.7
0 to 0.25
Manganese (Mn), % 1.0 to 3.0
0
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 25 to 27
0
Niobium (Nb), % 0.25 to 0.75
0
Nitrogen (N), % 0.080 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
92.6 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4