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S35500 Stainless Steel vs. Grade 27 Titanium

S35500 stainless steel belongs to the iron alloys classification, while grade 27 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S35500 stainless steel and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 14
27
Fatigue Strength, MPa 690 to 730
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
41
Shear Strength, MPa 810 to 910
180
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
270
Tensile Strength: Yield (Proof), MPa 1200 to 1280
230

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 870
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 11
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 16
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.5
33
Embodied Energy, MJ/kg 47
530
Embodied Water, L/kg 130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
70
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 47 to 53
17
Strength to Weight: Bending, points 34 to 37
21
Thermal Diffusivity, mm2/s 4.4
8.8
Thermal Shock Resistance, points 44 to 49
21

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.080
Chromium (Cr), % 15 to 16
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 73.2 to 77.7
0 to 0.2
Manganese (Mn), % 0.5 to 1.3
0
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
0
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0.070 to 0.13
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.040
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99 to 99.92
Residuals, % 0
0 to 0.4