EN32 Case Hardening Steel

EN32 steel stockholders and suppliers. EN32 is an unalloyed low carbon grade case hardening steel available as full bar lengths or cut pieces in flat and round bar with delivery to the whole of the UK. Components when carburised have a core strength range of 430-490N/mm² with a hard wear resistant surface case. It is a popular case hardening steel grade for general engineering, readily machineable and weldable in its supply condition. EN32 is a low tensile steel suited for lightly stressed components.

We welcome export enquiries for case hardening steel. Contact our sales office and consult our shipping policy for details.

Popular case hardening grades we supply

16MnCr5 | 20MnCr5 | 8620 | EN32 | EN36 | EN39

Form of Supply

West Yorkshire Steel are EN32 EN32B steel stockholders and steel suppliers of round bar, flat bar and plate. This case hardening grade can be sawn to your required lengths as one offs or multiple cut pieces. Ground steel bar can be supplied, providing precision ground bar to tight tolerances. This grade is also available as EN32A, EN32B, EN32C and EN32M types.

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  • Flat
  • Diameter

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Commonly used for general engineering lightly stressed applications that are subject to wear, EN32 is suitable for applications such as collets, cams, rollers, bushes, spindles, and gears.

Carbon 0.10-0.18% Phosphorous 0.05% max
Manganese 0.60-1.00% Sulphur 0.05% max
Silicon 0.05-0.35%

EN32 is suited for carburising and case hardening, surfaces must be free from dirt and grease, and of low sulphur content. Case hardening can be carried out in salt baths with selected content depending on the type of salt and the depth of penetration required. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Time, temperatures and salt selection will be advised by your heat treatment provider.

Harden at a temperature of 760-780°C. Quench in water.

Tempering is recommended for stress relief and maximum case toughness. Tempering range from 150-200°C.

430 18 39 35

(*blank case hardened – 29mm test piece)

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of case hardening steel grades.

EN32 case hardening steel is commonly available with cast and analysis certificate of a certificate of conformity, please request when placing any orders.

EN32 case hardening steel is supplied in accordance with our ISO 9001:2015 registration.