50 furnaces and over 90 years experience


With more than 50 furnaces and in excess of 90 years’ experience, Special Steels Ltd offer a comprehensive, unrivalled, cost effective range of heat treatment services. Those listed below give an idea of the processes and capacities available to you, but this is not exhaustive. Special Steels operate to the highest quality levels, including offering NADCAP approved heat treatment processes. If you have specific requirements, contact our sales team to discuss how we can meet your needs.


Woodbourn Hill / Automated Plant

  • 1,250mm x 1,800mm x 500mm high
  • Water quench / polymer quench / furnace and air cool up to 2 tonnes
  • Stress relieve / annealing up to 850°C, 3,350mm x 4,875mm x 1,675mm, up to 15 tonnes
  • Oil quenching of small components

Bacon Lane

  • Up to 6,200mm length
  • Up to 5 tonnes single batch capacity
  • Oil / water quench / furnace and air cool

Bessemer Road

  • Up to 10,000mm length
  • Up to 25 tonnes single batch capacity
  • Water quench / furnace and air cool

Ancillary Services

  • Straightening (presses up to 1,000 tonnes)
  • Induction hardening / brazing
  • Steam tempering
  • Vacuum heat treatment
  • Austempering to 300°C
  • Flame hardening

Other Processing Services

As part of the Special Steel Group, we are able to offer a range of complementary processes and services, including:

  • CNC cutting facility up to 790mm diameter
  • In-house mechanical testing laboratory
  • In-house metallurgical laboratory
  • Corrosion testing
  • Non-destructive testing (ultrasonic, magnetic particle, dye penetrant)
  • Shot blasting
  • CNC horizontal and vertical machining centres
  • CNC lathes
  • Manual lathes for first stage machining
  • Coordinate measuring machine (CMM)
  • CAM system

In-house laboratories

Mechanical and metallurgical testing as a standalone service or an integrated part of our production processes.

Non-destructive testing

Comprehensive inspection and testing services exceeding industry standards delivered in-house or on site.

Machining services

Utilising the latest CAD/CAM software and equipment to machine simple and complex parts to demanding tolerances.

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