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EN 1.4109 Stainless Steel vs. Titanium 6-2-4-2

EN 1.4109 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4109 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, % 19
8.6
Fatigue Strength, MPa 270
490
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Shear Strength, MPa 480
560
Tensile Strength: Ultimate (UTS), MPa 770
950
Tensile Strength: Yield (Proof), MPa 420
880

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 820
300
Melting Completion (Liquidus), °C 1440
1590
Melting Onset (Solidus), °C 1400
1540
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 30
6.9
Thermal Expansion, µm/m-K 10
9.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
0.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
42
Density, g/cm3 7.7
4.6
Embodied Carbon, kg CO2/kg material 2.2
32
Embodied Energy, MJ/kg 30
520
Embodied Water, L/kg 110
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
79
Resilience: Unit (Modulus of Resilience), kJ/m3 460
3640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 28
57
Strength to Weight: Bending, points 24
46
Thermal Diffusivity, mm2/s 8.1
2.8
Thermal Shock Resistance, points 28
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.6 to 0.75
0 to 0.050
Chromium (Cr), % 14 to 16
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 80.7 to 85
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0.4 to 0.8
1.8 to 2.2
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
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