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Grade 15 Titanium vs. N08135 Stainless Steel

Grade 15 titanium belongs to the titanium alloys classification, while N08135 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 15 titanium and the bottom bar is N08135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
46
Fatigue Strength, MPa 290
220
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
80
Shear Strength, MPa 340
400
Tensile Strength: Ultimate (UTS), MPa 540
570
Tensile Strength: Yield (Proof), MPa 430
240

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1660
1440
Melting Onset (Solidus), °C 1610
1390
Specific Heat Capacity, J/kg-K 540
460
Thermal Expansion, µm/m-K 8.7
16

Otherwise Unclassified Properties

Base Metal Price, % relative 37
39
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 32
6.8
Embodied Energy, MJ/kg 520
94
Embodied Water, L/kg 210
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
210
Resilience: Unit (Modulus of Resilience), kJ/m3 870
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 33
19
Strength to Weight: Bending, points 33
19
Thermal Shock Resistance, points 41
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 0
0 to 0.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
30.2 to 42.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0.4 to 0.6
33 to 38
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.2 to 99.56
0
Tungsten (W), % 0
0.2 to 0.8
Residuals, % 0 to 0.4
0