EN 1.4523 (X2CrMoTiS18-2) Stainless Steel
EN 1.4523 stainless steel is a ferritic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 1.4523 is the EN numeric designation for this material. X2CrMoTiS18-2 is the EN chemical designation.
It has a moderately low electrical conductivity and a fairly low ductility among wrought ferritic stainless steels.
The graph bars on the material properties cards below compare EN 1.4523 stainless steel to: wrought ferritic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
180
Elastic (Young's, Tensile) Modulus
200 GPa 29 x 106 psi
Elongation at Break
17 %
Fatigue Strength
190 MPa 28 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
78 GPa 11 x 106 psi
Shear Strength
320 MPa 46 x 103 psi
Tensile Strength: Ultimate (UTS)
520 MPa 75 x 103 psi
Tensile Strength: Yield (Proof)
320 MPa 46 x 103 psi
Thermal Properties
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
500 °C 930 °F
Maximum Temperature: Mechanical
920 °C 1700 °F
Melting Completion (Liquidus)
1450 °C 2650 °F
Melting Onset (Solidus)
1410 °C 2570 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
22 W/m-K 12 BTU/h-ft-°F
Thermal Expansion
10 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.6 % IACS
Otherwise Unclassified Properties
Base Metal Price
12 % relative
Density
7.7 g/cm3 480 lb/ft3
Embodied Carbon
2.9 kg CO2/kg material
Embodied Energy
40 MJ/kg 17 x 103 BTU/lb
Embodied Water
130 L/kg 16 gal/lb
Common Calculations
PREN (Pitting Resistance)
26
Resilience: Ultimate (Unit Rupture Work)
77 MJ/m3
Resilience: Unit (Modulus of Resilience)
260 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Thermal Diffusivity
5.8 mm2/s
Thermal Shock Resistance
18 points
Alloy Composition
Among wrought stainless steels, the composition of EN 1.4523 stainless steel is notable for including aluminum (Al) and titanium (Ti). Aluminum is used to improve oxidation resistance. It can also enhance the effects of heat treatment. Titanium is used to broadly improve mechanical properties.
| Fe | 75.7 to 80.2 | |
| Cr | 17.5 to 19 | |
| Mo | 2.0 to 2.5 | |
| Si | 0 to 1.0 | |
| Ti | 0.15 to 0.8 | |
| Mn | 0 to 0.5 | |
| S | 0.15 to 0.35 | |
| P | 0 to 0.040 | |
| Al | 0 to 0.040 | |
| C | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005
EN 10088-1: Stainless steels - Part 1: List of stainless steels
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010