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EN 1.8875 (P500QL1) Nickel Steel

EN 1.8875 steel is an alloy steel formulated for primary forming into wrought products. Cited properties are appropriate for the quenched and tempered condition. 1.8875 is the EN numeric designation for this material. P500QL1 is the EN chemical designation.

It has a moderately high density among EN wrought alloy steels. In addition, it has a fairly low thermal conductivity and a fairly high electrical conductivity.

The graph bars on the material properties cards below compare EN 1.8875 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

200

Elastic (Young's, Tensile) Modulus

190 GPa 27 x 106 psi

Elongation at Break

19 %

Fatigue Strength

340 MPa 49 x 103 psi

Impact Strength: V-Notched Charpy

90 J 66 ft-lb

Poisson's Ratio

0.29

Shear Modulus

73 GPa 11 x 106 psi

Shear Strength

410 MPa 59 x 103 psi

Tensile Strength: Ultimate (UTS)

660 MPa 95 x 103 psi

Tensile Strength: Yield (Proof)

490 MPa 71 x 103 psi

Thermal Properties

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

420 °C 780 °F

Melting Completion (Liquidus)

1460 °C 2670 °F

Melting Onset (Solidus)

1420 °C 2590 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

39 W/m-K 22 BTU/h-ft-°F

Thermal Expansion

13 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.8 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.9 % IACS

Otherwise Unclassified Properties

Base Metal Price

3.2 % relative

Density

7.9 g/cm3 490 lb/ft3

Embodied Carbon

1.8 kg CO2/kg material

Embodied Energy

24 MJ/kg 10 x 103 BTU/lb

Embodied Water

52 L/kg 6.2 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

110 MJ/m3

Resilience: Unit (Modulus of Resilience)

650 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

23 points

Strength to Weight: Bending

21 points

Thermal Diffusivity

10 mm2/s

Thermal Shock Resistance

19 points

Alloy Composition

Among alloy steels, the composition of EN 1.8875 steel is notable for including zirconium (Zr) and boron (B). Zirconium is used to improve ductility. Boron is used to improve hardenability. It has a substantial effect when added in even tiny amounts.

Iron (Fe) 93.6 to 100
Manganese (Mn) 0 to 1.7
Nickel (Ni) 0 to 1.5
Chromium (Cr) 0 to 1.0
Molybdenum (Mo) 0 to 0.7
Silicon (Si) 0 to 0.6
Copper (Cu) 0 to 0.3
Carbon (C) 0 to 0.18
Zirconium (Zr) 0 to 0.15
Vanadium (V) 0 to 0.080
Niobium (Nb) 0 to 0.050
Titanium (Ti) 0 to 0.050
Phosphorus (P) 0 to 0.020
Nitrogen (N) 0 to 0.015
Sulfur (S) 0 to 0.0080
Boron (B) 0 to 0.0050

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

EN 10028-6: Flat products made of steels for pressure purposes - Part 6: Weldable fine grain steels, quenched and tempered

Welding Metallurgy, 2nd ed., Sindo Kou, 2003

Microstructure of Steels and Cast Irons, Madeleine Durand-Charre, 2004

ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996

Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005

Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008

Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015