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Titanium 6-6-2 vs. S32803 Stainless Steel

Titanium 6-6-2 belongs to the titanium alloys classification, while S32803 stainless steel belongs to the iron 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 titanium 6-6-2 and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 6.7 to 9.0
18
Fatigue Strength, MPa 590 to 670
350
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 44
81
Shear Strength, MPa 670 to 800
420
Tensile Strength: Ultimate (UTS), MPa 1140 to 1370
680
Tensile Strength: Yield (Proof), MPa 1040 to 1230
560

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 310
1100
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 5.5
16
Thermal Expansion, µm/m-K 9.4
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 40
19
Density, g/cm3 4.8
7.7
Embodied Carbon, kg CO2/kg material 29
3.7
Embodied Energy, MJ/kg 470
53
Embodied Water, L/kg 200
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 99
120
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 66 to 79
25
Strength to Weight: Bending, points 50 to 57
22
Thermal Diffusivity, mm2/s 2.1
4.4
Thermal Shock Resistance, points 75 to 90
22

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.050
0 to 0.015
Chromium (Cr), % 0
28 to 29
Copper (Cu), % 0.35 to 1.0
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
62.9 to 67.1
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 5.0 to 6.0
1.8 to 2.5
Nickel (Ni), % 0
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0 to 0.040
0 to 0.020
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.55
Sulfur (S), % 0
0 to 0.0035
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.8 to 87.8
0
Residuals, % 0 to 0.4
0