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EN 1.4588 Stainless Steel vs. Grade 25 Titanium

EN 1.4588 stainless steel belongs to the iron alloys classification, while grade 25 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4588 stainless steel and the bottom bar is grade 25 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
11
Fatigue Strength, MPa 190
550
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 540
1000
Tensile Strength: Yield (Proof), MPa 240
940

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 460
560
Thermal Conductivity, W/m-K 15
7.1
Thermal Expansion, µm/m-K 17
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 6.2
43
Embodied Energy, MJ/kg 84
700
Embodied Water, L/kg 200
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
4220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 18
62
Strength to Weight: Bending, points 18
50
Thermal Diffusivity, mm2/s 4.0
2.8
Thermal Shock Resistance, points 11
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.5 to 1.5
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 41.2 to 50.4
0 to 0.4
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0.3 to 0.8
Nitrogen (N), % 0.1 to 0.25
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
86.7 to 90.6
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4