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EN 1.4557 Stainless Steel vs. Grade 11 Titanium

EN 1.4557 stainless steel belongs to the iron alloys classification, while grade 11 titanium belongs to the titanium 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 EN 1.4557 stainless steel and the bottom bar is grade 11 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
120
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
29
Fatigue Strength, MPa 260
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 80
38
Tensile Strength: Ultimate (UTS), MPa 560
310
Tensile Strength: Yield (Proof), MPa 300
230

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1090
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 460
540
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 17
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.6
47
Embodied Energy, MJ/kg 76
800
Embodied Water, L/kg 190
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
81
Resilience: Unit (Modulus of Resilience), kJ/m3 210
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 4.0
8.9
Thermal Shock Resistance, points 12
22

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 49.5 to 56.3
0 to 0.2
Manganese (Mn), % 0 to 1.2
0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
0
Nitrogen (N), % 0.18 to 0.24
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
98.8 to 99.88
Residuals, % 0
0 to 0.4