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AISI 329 Stainless Steel vs. Grade 35 Titanium

AISI 329 stainless steel belongs to the iron alloys classification, while grade 35 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 AISI 329 stainless steel and the bottom bar is grade 35 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17
5.6
Fatigue Strength, MPa 330
330
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
41
Shear Strength, MPa 440
580
Tensile Strength: Ultimate (UTS), MPa 710
1000
Tensile Strength: Yield (Proof), MPa 540
630

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1440
1630
Melting Onset (Solidus), °C 1390
1580
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 16
7.4
Thermal Expansion, µm/m-K 13
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 16
37
Density, g/cm3 7.7
4.6
Embodied Carbon, kg CO2/kg material 3.1
33
Embodied Energy, MJ/kg 44
530
Embodied Water, L/kg 170
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
49
Resilience: Unit (Modulus of Resilience), kJ/m3 730
1830
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 25
61
Strength to Weight: Bending, points 23
49
Thermal Diffusivity, mm2/s 4.3
3.0
Thermal Shock Resistance, points 19
70

Alloy Composition

Aluminum (Al), % 0
4.0 to 5.0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 23 to 28
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 63.1 to 74
0.2 to 0.8
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.0 to 2.0
1.5 to 2.5
Nickel (Ni), % 2.0 to 5.0
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0.2 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.4 to 93
Vanadium (V), % 0
1.1 to 2.1
Residuals, % 0
0 to 0.4