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We would like to update you with our situation to the coronavirus. BUSINESS AS USUAL until government states otherwise. We are monitoring ongoing updates from the gov.uk on the development of the COVID-19 pandemic and following advice given. We work in support of the medical, transport, engineering and food industries so are a critical supplier. Thank you for your support during these testing times and stay safe and healthy.

Manchester Site Approvals

BSI AS 9100 Aerospace Quality Management System

Scope of approval:-

The provision of sub-contract heat treatment of tools and components in ferrous and non-ferrous metals and alloys to national, international and customer specifications covering carburising, nitro-carburising, carbonitriding, nitriding, hardening, vacuum heat treatments, neutral salt hardening, tempering, solution and precipitation hardening, stress relieving and vacuum brazing.

BSI ISO 14001 Environmental Management System

Scope of Approval:-

The heat treatment of customer supplied components

Wallwork Heat Treatment, Bury Site - Aerospace Approvals held


SAFRAN NACELLES (Formerly known as Aircelle)

(Approval No. WALB-HT-01)

(Supplier No. MDM502343)

  • Heat Treatment
  • Stress Relieving
  • Solution Heat Treating
  • Normalising
  • Homogenization Annealing
  • Ageing Process
  • Sub-Zero Treatment
  • Quenching Process

Airbus UK

(Supplier No. 278608)

  • Vacuum Heat Treatment (All materials)
  • Hardness Testing
  • Gas Nitriding
  • Hardening & Tempering (Fe)
  • Precipitation Hardening
  • Stress Relieving & Annealing (Fe)
  • Stress Relieving & Annealing (Ti)


(Approval No. N° GB12/0490/00)

(Supplier No. 21011615)

  • Cleaning
  • Steel Heat Treatment (including vacuum)
  • High temperature Stress Relief
  • Nitriding
  • Hardness Testing
  • Micro Hardness Testing

BAE Systems

(Approval No. BAE/AG/10858/MAA)

  • Annealing (Fe and Ti)
  • Case Hardening
  • Hardening and Tempering
  • Normalising
  • Precipitation Hardening (Fe)
  • Stress Relieving (Fe, Ti and Ni)
  • Solution Treatment (Ti)
  • Age Hardening (Ti and Ni)
  • Vacuum Heat Treatment
  • Superannealing (Ti)
  • Hardness Testing
  • Gas Nitriding


(Supplier Code 124182)

  • Heat Treatment of Carbon and Low Alloy Steels
  • Heat Treatment of Precipitation Hardenable (PH) Stainless Steels
  • Heat Treatment of Corrosion Resistant Steels
  • Stress Relieving
  • Hardness testing

Eaton Aerospace

(Approval No. 12903)

  • No scope defined


  • Accept NADCAP Heat Treaters (No approvals issued in writing)

UTC Aerospace Systems (formerly known as Goodrich Actuation Systems)

(Vendor Number 146223)

  • Precipitation Hardening of Investment Castings
  • Vacuum Heat Treatment - 5 bar quench
  • Vacuum Heat Treatment
  • Stabilising & Stress Relief of Steels
  • Neutral Salt bath/Atmosphere - Hardening and Tempering/Ageing
  • Heat Treatment of Miscellaneous Materials
  • Nitriding - Gas
  • Carburising

Controls and Data Services (Formerly known as Goodrich Engine Control Systems and Aero Engine Controls)

  • Hardening and Tempering of: LA-S-041, LA-S-042, 1%C-Cr Steels, 1.5% Ni-Cr-Mo Steels, 440C and 10%V-C-Cr-Mo Tool Steel
  • Carburising of: 3% Ni steel, High Strength Alloy Carburising Steel.
  • Carburising and Martempering Treatments for Alloy Carburising Steel
  • Stress Relieving
  • Gas Nitriding
  • Annealing of magnetic materials, austenitic stainless steels
  • Cryogenic Treatment.
  • Acid etching for case depth
  • Hardness testing

Safran Power (formerly Goodrich Power Systems)

  • No scope defined


(Approval No. HBIFSAS/PART1/0878)

(Supplier Identification No. 10130241)

  • Annealing (Fe)
  • Case Hardening (Fe)
  • Hardening and Tempering (Fe)
  • Nitriding
  • Hardness Testing
  • Normalising (Fe)
  • Precipitation Hardening (Fe)
  • Stress Relieving (Fe and Ti)
  • Vacuum Heat Treatment
  • Hardness Testing


(Approval No. E-1010-SA)

  • Heat Treatment Control

Moog Aircraft Group


  • Pyrometry
  • Carburising
  • Nitriding
  • Heat treatment of Steels
  • Supporting processes including hardness / microhardness testing & metallography


(Certificate No. 7261186053)

  • Ni and Co alloys
  • Nitriding
  • Carburising
  • Titanium (Age, Anneal and Stress Relieve)
  • Stainless and PH steels
  • Steels
  • Vacuum Heat Treatment
  • Cryogenic Treatments
  • Aluminium
  • Magnesium
  • Hardness & Conductivity Testing
  • Microhardness testing & Metallography
  • Vacuum Brazing

Rolls-Royce (UK plc & Deutschland)

(Vendor Code 228737; RR plc Approval No. 107320; RRD Approval No. 106950 / 07)







Rolls-Royce Corporation

(Approval No. 120330) 

  • Nitriding
  • Titanium (Annealing, stress relieving and Ageing)
  • Tufftriding
  • 12% Cr and 18/8 steels
  • Ni and Co based materials
  • Hardness Testing
  • Carburising
  • Salt Bath Heat Treatment including Delayed Quenching
  • Associated processes (Vapour Degreasing, HT Protective Coatings, Corrosion Protection, Aqueous Degreasing)
  • Deep Freezing
  • Classified Parts
  • Aluminium and Magnesium
  • Vacuum Brazing


  • Hardening and temperingof various carbon and alloy steels

 Dowty Propellers

(Approval no. TRE 0002 P)

  • Heat Treatment - PS 5311, PS5319, AMS 2750
  • Nitriding - PS 5302, AMS 2759/6
  • Carburising - PS 5312, PS 5310, AMS 2759/7, MAT 5902
  • Annealing of Aluminium - PS5320
  • Heat Treatment of Aluminium - PS5320


(Approval no. BE10420518)

  • Heat Treat of Alloy steels
  • Heat Treat of corrosion resistant steel
  • Carburizing of steel

Safran Aircraft Engines

(Supplier no. MDM502343)

  • Solution Heat Treating
  • Quenching
  • Ageing Process
  • Stress Relieving
  • Normalizing
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