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S35125 Stainless Steel vs. Titanium 6-2-4-2

S35125 stainless steel belongs to the iron alloys classification, while titanium 6-2-4-2 belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S35125 stainless steel and the bottom bar is titanium 6-2-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 39
8.6
Fatigue Strength, MPa 200
490
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Shear Strength, MPa 370
560
Tensile Strength: Ultimate (UTS), MPa 540
950
Tensile Strength: Yield (Proof), MPa 230
880

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
300
Melting Completion (Liquidus), °C 1430
1590
Melting Onset (Solidus), °C 1380
1540
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 12
6.9
Thermal Expansion, µm/m-K 16
9.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
0.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 36
42
Density, g/cm3 8.1
4.6
Embodied Carbon, kg CO2/kg material 6.4
32
Embodied Energy, MJ/kg 89
520
Embodied Water, L/kg 210
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
79
Resilience: Unit (Modulus of Resilience), kJ/m3 140
3640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
34
Strength to Weight: Axial, points 19
57
Strength to Weight: Bending, points 18
46
Thermal Diffusivity, mm2/s 3.1
2.8
Thermal Shock Resistance, points 12
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.1
0 to 0.050
Chromium (Cr), % 20 to 23
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 36.2 to 45.8
0 to 0.25
Manganese (Mn), % 1.0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
1.8 to 2.2
Nickel (Ni), % 31 to 35
0
Niobium (Nb), % 0.25 to 0.6
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.5
0.060 to 0.12
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
1.8 to 2.2
Titanium (Ti), % 0
83.7 to 87.2
Zirconium (Zr), % 0
3.6 to 4.4
Residuals, % 0
0 to 0.4