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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.

Iron (Fe) 88.7 to 91.1
Nickel (Ni) 8.5 to 9.5
Manganese (Mn) 0.3 to 0.8
Silicon (Si) 0.15 to 0.35
Copper (Cu) 0 to 0.3
Carbon (C) 0 to 0.13
Molybdenum (Mo) 0 to 0.1
Vanadium (V) 0 to 0.050
Phosphorus (P) 0 to 0.020
Sulfur (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