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S20910 Stainless Steel vs. Titanium 6-6-2

S20910 stainless steel belongs to the iron alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 28 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 S20910 stainless steel and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
6.7 to 9.0
Fatigue Strength, MPa 310 to 460
590 to 670
Poisson's Ratio 0.28
0.32
Reduction in Area, % 56 to 62
17 to 23
Shear Modulus, GPa 79
44
Shear Strength, MPa 500 to 570
670 to 800
Tensile Strength: Ultimate (UTS), MPa 780 to 940
1140 to 1370
Tensile Strength: Yield (Proof), MPa 430 to 810
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1080
310
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 13
5.5
Thermal Expansion, µm/m-K 16
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 22
40
Density, g/cm3 7.8
4.8
Embodied Carbon, kg CO2/kg material 4.8
29
Embodied Energy, MJ/kg 68
470
Embodied Water, L/kg 180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
89 to 99
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 28 to 33
66 to 79
Strength to Weight: Bending, points 24 to 27
50 to 57
Thermal Diffusivity, mm2/s 3.6
2.1
Thermal Shock Resistance, points 17 to 21
75 to 90

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0 to 0.060
0 to 0.050
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 52.1 to 62.1
0.35 to 1.0
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
5.0 to 6.0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0 to 0.040
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
82.8 to 87.8
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 0.4

Comparable Variants