EN 1.5682 (X10Ni9) Nickel Steel
EN 1.5682 steel is an alloy steel formulated for primary forming into wrought products. Cited properties are appropriate for the quenched and tempered condition. 1.5682 is the EN numeric designation for this material. X10Ni9 is the EN chemical designation.
It has a very high base cost among EN wrought alloy steels. In addition, it has a very high electrical conductivity and a moderately high density.
The graph bars on the material properties cards below compare EN 1.5682 steel to: EN wrought alloy 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
230
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
21 %
Fatigue Strength
400 MPa 58 x 103 psi
Impact Strength: V-Notched Charpy
68 J 50 ft-lb
Poisson's Ratio
0.29
Shear Modulus
72 GPa 11 x 106 psi
Shear Strength
480 MPa 70 x 103 psi
Tensile Strength: Ultimate (UTS)
770 MPa 110 x 103 psi
Tensile Strength: Yield (Proof)
570 MPa 83 x 103 psi
Thermal Properties
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
430 °C 800 °F
Melting Completion (Liquidus)
1450 °C 2650 °F
Melting Onset (Solidus)
1410 °C 2570 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
8.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.8 % IACS
Otherwise Unclassified Properties
Base Metal Price
7.5 % relative
Density
7.9 g/cm3 500 lb/ft3
Embodied Carbon
2.3 kg CO2/kg material
Embodied Energy
31 MJ/kg 13 x 103 BTU/lb
Embodied Water
63 L/kg 7.5 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
150 MJ/m3
Resilience: Unit (Modulus of Resilience)
870 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
27 points
Strength to Weight: Bending
23 points
Thermal Shock Resistance
23 points
Alloy Composition
Among alloy steels, the composition of EN 1.5682 steel is notable for including vanadium (V) and copper (Cu). Vanadium has a strong hardening effect, but this effect is particularly sensitive to the type of tempering. Copper is used to improve corrosion resistance, and to add at least some degree of precipitation hardenability.
| Fe | 88.7 to 91.1 | |
| Ni | 8.5 to 9.5 | |
| Mn | 0.3 to 0.8 | |
| Si | 0.15 to 0.35 | |
| Cu | 0 to 0.3 | |
| C | 0 to 0.13 | |
| Mo | 0 to 0.1 | |
| V | 0 to 0.050 | |
| P | 0 to 0.020 | |
| S | 0 to 0.0050 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10216-4: Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties
Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011
Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005
Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015
Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015