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S35140 Stainless Steel vs. Grade 2 Titanium

S35140 stainless steel belongs to the iron alloys classification, while grade 2 titanium belongs to the titanium alloys. There are 31 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 2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
23
Fatigue Strength, MPa 250
250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
38
Shear Strength, MPa 460
270
Tensile Strength: Ultimate (UTS), MPa 690
420
Tensile Strength: Yield (Proof), MPa 310
360

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1370
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 14
22
Thermal Expansion, µm/m-K 16
9.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 31
37
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.5
31
Embodied Energy, MJ/kg 78
510
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
92
Resilience: Unit (Modulus of Resilience), kJ/m3 250
600
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 24
26
Strength to Weight: Bending, points 22
28
Thermal Diffusivity, mm2/s 3.7
8.9
Thermal Shock Resistance, points 16
32

Alloy Composition

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 0.3
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 0.25
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.9 to 100
Residuals, % 0
0 to 0.4