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N08332 Stainless Steel vs. Grade 18 Titanium

N08332 stainless steel belongs to the iron alloys classification, while grade 18 titanium belongs to the titanium alloys. There are 29 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 N08332 stainless steel and the bottom bar is grade 18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
11 to 17
Fatigue Strength, MPa 170
330 to 480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Shear Strength, MPa 350
420 to 590
Tensile Strength: Ultimate (UTS), MPa 520
690 to 980
Tensile Strength: Yield (Proof), MPa 210
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1050
330
Melting Completion (Liquidus), °C 1390
1640
Melting Onset (Solidus), °C 1340
1590
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 12
8.3
Thermal Expansion, µm/m-K 16
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.4
41
Embodied Energy, MJ/kg 77
670
Embodied Water, L/kg 190
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1380 to 3110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 18
43 to 61
Strength to Weight: Bending, points 18
39 to 49
Thermal Diffusivity, mm2/s 3.1
3.4
Thermal Shock Resistance, points 12
47 to 67

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0.050 to 0.1
0 to 0.080
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0 to 1.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 38.3 to 48.2
0 to 0.25
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 34 to 37
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.75 to 1.5
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0 to 0.025
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4