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EN 1.4123 Stainless Steel vs. Grade 25 Titanium

EN 1.4123 stainless steel belongs to the iron alloys classification, while grade 25 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 grade 25 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
1000

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

Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 4.2
43
Embodied Energy, MJ/kg 62
700
Embodied Water, L/kg 120
320

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 26 to 29
62
Strength to Weight: Bending, points 23 to 25
50
Thermal Diffusivity, mm2/s 6.3
2.8
Thermal Shock Resistance, points 26 to 29
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.35 to 0.5
0 to 0.080
Chromium (Cr), % 14 to 16.5
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 76.7 to 84.6
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.0 to 2.5
0
Nickel (Ni), % 0 to 0.5
0.3 to 0.8
Nitrogen (N), % 0.1 to 0.3
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
86.7 to 90.6
Vanadium (V), % 0 to 1.5
3.5 to 4.5
Residuals, % 0
0 to 0.4