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Grade 2 Titanium vs. N08811 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while N08811 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is N08811 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 23
33
Fatigue Strength, MPa 250
150
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
77
Shear Strength, MPa 270
340
Tensile Strength: Ultimate (UTS), MPa 420
510
Tensile Strength: Yield (Proof), MPa 360
190

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1660
1390
Melting Onset (Solidus), °C 1610
1360
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 22
12
Thermal Expansion, µm/m-K 9.0
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
30
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 31
5.3
Embodied Energy, MJ/kg 510
76
Embodied Water, L/kg 110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
130
Resilience: Unit (Modulus of Resilience), kJ/m3 600
94
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 28
18
Thermal Diffusivity, mm2/s 8.9
3.0
Thermal Shock Resistance, points 32
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.080
0.060 to 0.1
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0
0 to 0.75
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
39.5 to 50.6
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
30 to 35
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.9 to 100
0.15 to 0.6
Residuals, % 0 to 0.4
0