Plastic Mould Steel


Plastic mould steels generally fall into two specific groups, namely those for: 'bolsters and larger tools' and those for 'inserts and smaller tools'. These groups may be further subdivided into stainless and non-stainless groups.

Requirements for bolsters and large tools include:

  • Pretoughened or prehardened so as not to require subsequent heat treatment
  • Good machinability
  • Good impact strength
  • Good polishability

Requirements for inserts and smaller tools include:

  • Good hardenability
  • Enhanced wear properties
  • Dimensional stability during heat treatment
  • Good impact strength
  • Good polishability

Steels with high wear resistance, mirror polishability and high erosion and corrosion resistance are required for the production of plastic items. Depending on the user application, case hardening, precipitation hardening, corrosion resistant, nitriding and maraging steels or a high performance material produced using powder metallurgy (PM) technology can be supplied.

Bohler ---- ISOPLAST
ESR quality.

Bohler ---- MICROCLEAN
Powder metallurgy steel.

Bohler ---- VMR
Vacuum melted, remelted quality.

Contact us with your enquiry. We look forward to hearing from you.

See Technical Information / Product Finder Links for further information on our steels and applications.

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Tools Steel & High Speed Steel contacts

Divisional Manager: Mark Atkins
Sales Office Tel:  +44 (0)121 627 9264

External Sales Team
Business Development Manager: Bob Blenkhorn
Covering: East Midlands & Northern England
Mobile: +44(0)797 657 9068

Business Development Manager: Oliver Bridger
Covering: West Midlands & Southern England
Mobile: +44(0)797 635 7840

Internal Sales Team
For all enquiries and order progress queries please contact:
Sales Office: +44(0)121 552 2575

Office Manager: Erica Thwaites
Internal sales: Dean Eyre
Internal sales: Victoria Curtis
Account administrator: Thomas Murphy
Key account administrator: Maria Mair
Key account administrator: Susan Garratt