EN8D

Overview

EN8D is a medium-carbon engineering steel with controlled chemistry and higher manganese compared with standard EN8, providing good strength and machinability.

Chemical Composition

C

Mn

Si

P/S

0.40 – 0.45

0.70 – 0.90

0.05 – 0.35

< 0.06 each

Heat Treatment

  • Normalising
  • Hardening
  • Oil/water quenching depending on section
  • Tempering according to required hardness and strength

Mechanical Properties

  • Higher strength than mild steel
  • Good machinability
  • Good toughness
  • Suitable for heat treatment
  • Typical mechanical values depend strongly on section size and heat-treatment condition

Equivalent Grades

  • EN: EN8D
  • Closely related to C45 / 1045-type medium-carbon steels, but equivalence should be confirmed against the applicable specification.

Applications

  • Shafts
  • Axles
  • Pins
  • Studs
  • Machine components
  • Gears and general engineering components

Available Forms

  • Round bars
  • Flats
  • Plates
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