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Grade 2 Titanium vs. N08925 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while N08925 stainless steel belongs to the iron 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 grade 2 titanium and the bottom bar is N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 23
45
Fatigue Strength, MPa 250
310
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
80
Shear Strength, MPa 270
470
Tensile Strength: Ultimate (UTS), MPa 420
680
Tensile Strength: Yield (Proof), MPa 360
340

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
460
Thermal Conductivity, W/m-K 22
13
Thermal Expansion, µm/m-K 9.0
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 37
33
Density, g/cm3 4.5
8.1
Embodied Carbon, kg CO2/kg material 31
6.2
Embodied Energy, MJ/kg 510
84
Embodied Water, L/kg 110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
250
Resilience: Unit (Modulus of Resilience), kJ/m3 600
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 28
21
Thermal Diffusivity, mm2/s 8.9
3.5
Thermal Shock Resistance, points 32
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0
0.8 to 1.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
42.7 to 50.1
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0 to 0.030
0.1 to 0.2
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0