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Spheroidized and Cold Drawn (+AC+C) 1.5805 Steel

EN 1.5805 +AC+C steel is EN 1.5805 steel in the spheroidized and cold-drawn condition. The graph bars on the material properties cards below compare EN 1.5805 +AC+C 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

170

Elastic (Young's, Tensile) Modulus

190 GPa 27 x 106 psi

Elongation at Break

11 %

Fatigue Strength

260 MPa 38 x 103 psi

Poisson's Ratio

0.29

Reduction in Area

66 %

Shear Modulus

73 GPa 11 x 106 psi

Shear Strength

330 MPa 48 x 103 psi

Tensile Strength: Ultimate (UTS)

550 MPa 80 x 103 psi

Tensile Strength: Yield (Proof)

420 MPa 62 x 103 psi

Thermal Properties

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

430 °C 800 °F

Melting Completion (Liquidus)

1460 °C 2660 °F

Melting Onset (Solidus)

1420 °C 2590 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

40 W/m-K 23 BTU/h-ft-°F

Thermal Expansion

13 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.5 % IACS

Otherwise Unclassified Properties

Base Metal Price

3.1 % relative

Density

7.9 g/cm3 490 lb/ft3

Embodied Carbon

1.6 kg CO2/kg material

Embodied Energy

21 MJ/kg 8.9 x 103 BTU/lb

Embodied Water

53 L/kg 6.4 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

57 MJ/m3

Resilience: Unit (Modulus of Resilience)

480 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

19 points

Strength to Weight: Bending

19 points

Thermal Diffusivity

11 mm2/s

Thermal Shock Resistance

16 points

Alloy Composition

Iron (Fe)Fe 95.7 to 97.2
Nickel (Ni)Ni 1.2 to 1.5
Chromium (Cr)Cr 0.9 to 1.2
Manganese (Mn)Mn 0.6 to 0.9
Silicon (Si)Si 0 to 0.3
Copper (Cu)Cu 0 to 0.25
Carbon (C)C 0.070 to 0.12
Phosphorus (P)P 0 to 0.025
Sulfur (S)S 0 to 0.025

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

Followup Questions

Further Reading

EN 10263-3: Steel rod, bars and wire for cold heading and cold extrusion - Part 3: Technical delivery conditions for case hardening steels

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