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N08020 Stainless Steel vs. Grade 2 Titanium

N08020 stainless steel belongs to the iron alloys classification, while grade 2 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 N08020 stainless steel and the bottom bar is grade 2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 15 to 34
23
Fatigue Strength, MPa 210 to 240
250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
38
Shear Strength, MPa 380 to 410
270
Tensile Strength: Ultimate (UTS), MPa 610 to 620
420
Tensile Strength: Yield (Proof), MPa 270 to 420
360

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1410
1660
Melting Onset (Solidus), °C 1360
1610
Specific Heat Capacity, J/kg-K 460
540
Thermal Conductivity, W/m-K 12
22
Thermal Expansion, µm/m-K 15
9.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 38
37
Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 6.6
31
Embodied Energy, MJ/kg 92
510
Embodied Water, L/kg 220
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 170
92
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 440
600
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 3.2
8.9
Thermal Shock Resistance, points 15
32

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 3.0 to 4.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 29.9 to 44
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 38
0
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
98.9 to 100
Residuals, % 0
0 to 0.4