EN 1.4567 (X3CrNiCu18-9-4) Stainless Steel
EN 1.4567 stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. 1.4567 is the EN numeric designation for this material. X3CrNiCu18-9-4 is the EN chemical designation.
It has the lowest thermal conductivity among the wrought austenitic stainless steels in the database.
The properties of EN 1.4567 stainless steel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.4567 stainless steel to: wrought austenitic 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
190 to 240
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
22 to 51 %
Fatigue Strength
190 to 260 MPa 28 to 38 x 103 psi
Impact Strength: V-Notched Charpy
91 to 110 J 67 to 84 ft-lb
Poisson's Ratio
0.28
Shear Modulus
76 GPa 11 x 106 psi
Shear Strength
390 to 490 MPa 57 to 71 x 103 psi
Tensile Strength: Ultimate (UTS)
550 to 780 MPa 80 to 110 x 103 psi
Tensile Strength: Yield (Proof)
200 to 390 MPa 29 to 57 x 103 psi
Thermal Properties
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
420 °C 780 °F
Maximum Temperature: Mechanical
930 °C 1710 °F
Melting Completion (Liquidus)
1410 °C 2570 °F
Melting Onset (Solidus)
1370 °C 2500 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
11 W/m-K 6.5 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Otherwise Unclassified Properties
Base Metal Price
16 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
3.1 kg CO2/kg material
Embodied Energy
43 MJ/kg 19 x 103 BTU/lb
Embodied Water
150 L/kg 18 gal/lb
Common Calculations
PREN (Pitting Resistance)
19
Resilience: Ultimate (Unit Rupture Work)
150 to 220 MJ/m3
Resilience: Unit (Modulus of Resilience)
100 to 400 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
19 to 27 points
Strength to Weight: Bending
19 to 24 points
Thermal Diffusivity
3.0 mm2/s
Thermal Shock Resistance
12 to 17 points
Alloy Composition
Among wrought stainless steels, the composition of EN 1.4567 stainless steel is notable for including copper (Cu). Copper is used to improve resistance to acids, and to improve formability.
| Fe | 63.3 to 71.5 | |
| Cr | 17 to 19 | |
| Ni | 8.5 to 10.5 | |
| Cu | 3.0 to 4.0 | |
| Mn | 0 to 2.0 | |
| Si | 0 to 1.0 | |
| N | 0 to 0.1 | |
| P | 0 to 0.045 | |
| C | 0 to 0.040 | |
| S | 0 to 0.015 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
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
EN 10088-1: Stainless steels - Part 1: List of stainless steels
Corrosion of Austenitic Stainless Steels: Mechanism, Mitigation and Monitoring, H. S. Khatak and B. Raj (editors), 2002
Austenitic Stainless Steels: Microstructure and Mechanical Properties, P. Marshall, 1984
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010