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EN 1.4458 Stainless Steel vs. Grade 20 Titanium

EN 1.4458 stainless steel belongs to the iron alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 24 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 1.4458 stainless steel and the bottom bar is grade 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34
5.7 to 17
Fatigue Strength, MPa 150
550 to 630
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
47
Tensile Strength: Ultimate (UTS), MPa 510
900 to 1270
Tensile Strength: Yield (Proof), MPa 190
850 to 1190

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
370
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1370
1600
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 15
9.6

Otherwise Unclassified Properties

Density, g/cm3 8.0
5.0
Embodied Carbon, kg CO2/kg material 5.4
52
Embodied Energy, MJ/kg 75
860
Embodied Water, L/kg 200
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 89
2940 to 5760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
33
Strength to Weight: Axial, points 17
50 to 70
Strength to Weight: Bending, points 18
41 to 52
Thermal Shock Resistance, points 12
55 to 77

Alloy Composition


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Aluminum (Al), % 0
3.0 to 4.0
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 19 to 22
5.5 to 6.5
Copper (Cu), % 0 to 2.0
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 40.2 to 53
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 2.5
3.5 to 4.5
Nickel (Ni), % 26 to 30
0
Nitrogen (N), % 0 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.12
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 0.025
0
Titanium (Ti), % 0
71 to 77
Vanadium (V), % 0
7.5 to 8.5
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4