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Titanium 6-2-4-2 vs. EN 1.4557 Stainless Steel

Titanium 6-2-4-2 belongs to the titanium alloys classification, while EN 1.4557 stainless steel belongs to the iron alloys. There are 29 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 titanium 6-2-4-2 and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 8.6
40
Fatigue Strength, MPa 490
260
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 950
560
Tensile Strength: Yield (Proof), MPa 880
300

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 300
1090
Melting Completion (Liquidus), °C 1590
1460
Melting Onset (Solidus), °C 1540
1420
Specific Heat Capacity, J/kg-K 540
460
Thermal Conductivity, W/m-K 6.9
15
Thermal Expansion, µm/m-K 9.5
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 42
29
Density, g/cm3 4.6
8.0
Embodied Carbon, kg CO2/kg material 32
5.6
Embodied Energy, MJ/kg 520
76
Embodied Water, L/kg 210
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
190
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 57
19
Strength to Weight: Bending, points 46
19
Thermal Diffusivity, mm2/s 2.8
4.0
Thermal Shock Resistance, points 67
12

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
49.5 to 56.3
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 1.8 to 2.2
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0 to 0.050
0.18 to 0.24
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.060 to 0.12
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0