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EN 1.4123 Stainless Steel vs. R56406 Titanium

EN 1.4123 stainless steel belongs to the iron alloys classification, while R56406 titanium belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4123 stainless steel and the bottom bar is R56406 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 720 to 810
980

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 840
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 23
7.1
Thermal Expansion, µm/m-K 10
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 4.2
38
Embodied Energy, MJ/kg 62
610
Embodied Water, L/kg 120
200

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 26 to 29
61
Strength to Weight: Bending, points 23 to 25
49
Thermal Diffusivity, mm2/s 6.3
2.8
Thermal Shock Resistance, points 26 to 29
69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.35 to 0.5
0 to 0.1
Chromium (Cr), % 14 to 16.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 76.7 to 84.6
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.0 to 2.5
0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0.1 to 0.3
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0 to 1.5
3.5 to 4.5