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S44330 Stainless Steel vs. Titanium 15-3-3-3

S44330 stainless steel belongs to the iron alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 29 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 S44330 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, % 25
5.7 to 8.0
Fatigue Strength, MPa 160
610 to 710
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 78
39
Shear Strength, MPa 280
660 to 810
Tensile Strength: Ultimate (UTS), MPa 440
1120 to 1390
Tensile Strength: Yield (Proof), MPa 230
1100 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 990
430
Melting Completion (Liquidus), °C 1440
1620
Melting Onset (Solidus), °C 1390
1560
Specific Heat Capacity, J/kg-K 480
520
Thermal Conductivity, W/m-K 21
8.1
Thermal Expansion, µm/m-K 10
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
40
Density, g/cm3 7.7
4.8
Embodied Carbon, kg CO2/kg material 2.8
59
Embodied Energy, MJ/kg 40
950
Embodied Water, L/kg 140
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
78 to 89
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 16
64 to 80
Strength to Weight: Bending, points 17
50 to 57
Thermal Diffusivity, mm2/s 5.7
3.2
Thermal Shock Resistance, points 16
79 to 98

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.025
0 to 0.050
Chromium (Cr), % 20 to 23
2.5 to 3.5
Copper (Cu), % 0.3 to 0.8
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 72.5 to 79.7
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Niobium (Nb), % 0 to 0.8
0
Nitrogen (N), % 0 to 0.025
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
2.5 to 3.5
Titanium (Ti), % 0 to 0.8
72.6 to 78.5
Vanadium (V), % 0
14 to 16
Residuals, % 0
0 to 0.4