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S20910 Stainless Steel vs. Titanium 15-3-3-3

S20910 stainless steel belongs to the iron alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 27 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 S20910 stainless steel and the bottom bar is titanium 15-3-3-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 14 to 39
5.7 to 8.0
Fatigue Strength, MPa 310 to 460
610 to 710
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
39
Shear Strength, MPa 500 to 570
660 to 810
Tensile Strength: Ultimate (UTS), MPa 780 to 940
1120 to 1390
Tensile Strength: Yield (Proof), MPa 430 to 810
1100 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1080
430
Melting Completion (Liquidus), °C 1420
1620
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
520
Thermal Conductivity, W/m-K 13
8.1
Thermal Expansion, µm/m-K 16
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 22
40
Density, g/cm3 7.8
4.8
Embodied Carbon, kg CO2/kg material 4.8
59
Embodied Energy, MJ/kg 68
950
Embodied Water, L/kg 180
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
78 to 89
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 28 to 33
64 to 80
Strength to Weight: Bending, points 24 to 27
50 to 57
Thermal Diffusivity, mm2/s 3.6
3.2
Thermal Shock Resistance, points 17 to 21
79 to 98

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.060
0 to 0.050
Chromium (Cr), % 20.5 to 23.5
2.5 to 3.5
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 52.1 to 62.1
0 to 0.25
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
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 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
2.5 to 3.5
Titanium (Ti), % 0
72.6 to 78.5
Vanadium (V), % 0.1 to 0.3
14 to 16
Residuals, % 0
0 to 0.4