About Us

Cambrian Fusion Technology Ltd (Cambrian Fusion), established in 2010, provides a professional welding and materials engineering service to companies operating in highly regulated industries.

With over 70 years combined experience in the fabrication, construction and manufacturing industries, we are Chartered Welding Engineers providing subject matter expertise across diverse industrial sectors including; strategic defence, new nuclear build, nuclear waste processing, oil & gas, petrochemical, cryogenic air separation, aerospace and scientific industries.

What We Do

Compliance with welding quality standards and the provision of competent welding and materials engineering personnel is essential for the successful execution of complex engineering projects. Cambrian Fusion are able to support all, or any of the following stages of a project:

Conceptual and Front End Engineering Design (FEED)
Conceptual and Front End Engineering Design (FEED)

Legislative and welding/fabrication quality standards and specification requirements

Welding and technology capability review and gap analysis

Detailed Design
Detailed Design

Development of welding specifications.

Materials and welding consumables selection and procurement.

Guidance on weld joint design and requirements for NDT.

Scope weld procedure qualification requirements and testing program.

Fabrication & Construction
Fabrication & Construction

Development and qualification of welding procedures.

Training & Performance Qualification
Training & Performance Qualification

Training (if required) and performance qualification of welders and welding operators.

Review of sub-contractors' welding and performance qualifications.


Auditing fabrication/construction site and sub-contractor welding activities.

Support & Trouble Shooting
Support & Trouble Shooting

Welding engineering support and troubleshooting at fabrication/construction site.


Aaron Williams
Director / Chartered Welding Engineer
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Project Examples

Balfour Beatty Kilpatrick

As mechanical sub-contractor to Selas-Linde GmbH for the construction of a tenth ethylene cracker furnace at INEOS Grangemouth Refinery, Balfour Beatty Kilpatrick, with Cambrian Fusion as their Welding Engineers, delivered a challenging scope of work which included the qualification of an extensive suite of 9CrMoV and austenitic stainless steel pipe welding procedures in accordance with ASME B31.3 and INEOS specifications.

Babcock Energy & Marine

Fabrication and construction of major components for a number of new marine defence platforms.

Repair, maintenance and overhaul of the current fleet of surface and submarine defence platforms.

BP QUAD 204 Redevelopment Project - West of Shetland, UK Continental Shelf

Fabrication of 73 subsea structures for the BP Quad 204 Redevelopment. These included 44 process fluid handling structures (including manifolds, flowline and riser terminations, and subsea isolation valve structures), and 30 control distribution structures (including multiple assemblies and umbilical terminations), amounting to a total of 2,300 tonnes of fabrication.

Total – Ellon Grant Field Life Extension - Alwyn South Area, North Sea

Fabrication of two 160-tonne subsea manifold and ICM containment structures for the controls upgrade and life extension of Total’s North Sea Ellon Grant asset.

Cavendish Nuclear Ltd

Cavendish Nuclear Ltd

As part of the MEH JV Alliance for NNB GenCo Ltd/EDF Energy, Cambrian Fusion undertook the development of weld procedure qualifications for the installation of the first twenty walled-in tanks designed to contain, store, distribute and prepare various fluids in support of reactor operations, including coolant, oil, effluents and additives, representing a critical part of the Hinkley Point C infrastructure.

Forum Energy Technologies Ltd (FET Ltd)

Responsible Welding Coordinators (RWC) for FET Ltd’s EN ISO 3834-2 accreditation.

Wood Group Integrity Management

BP Andrew Area Development - Central North Sea

Provision of fabrication, welding and materials engineering support to the BP Andrew Area Development Project for a new 700 tonne prefabricated Separation Module, new Hydraulic Power Unit (HPU), structural modifications, new topsides process pipework to allow integration of new and old systems, new riser caisson and umbilical at Andrew Platform.

Support at sub-contractor fabrication/construction facilities in Aberdeen.

PetroSA - Project Ikhwezi, Port Elizabeth and Mossel Bay, Republic of South Africa

37km x 12” API 5L X65 main flow line including 4Km high temperature section clad with 825 alloy, and 3” MEG line. Qualifications to DNV-OS-F101. Client Welding & Materials Engineer for PetroSA during weld procedure qualification, welder/welding operator performance qualifications by All-Seas (pipe-lay contractor), and subsea installation of first 4Km of high temperature main flow line/MEG line.

Bilfinger Industrial Services UK Ltd

Mechanical/Fabrication Term Maintenance Contractor (TMC) for:

  • BP Forties Pipeline System on-shore refineries at Grangemouth, Sullom Voe, and Seal Sands.
  • BP Exploration (now Perenco UK), Wytch Farm, Dorset.
  • BP Chemicals, Salt End, Humberside.
  • ExxonMobil, Fawley Refinery, Hampshire.
  • P66 (previously ConocoPhillips), Humber Refinery, Humberside.

Air Products & Chemicals Inc.

Sasol Qatar Limited

Manufacture of two 60m long x 6m diameter air separation units (ASU), from 5000 series aluminium, generating 7000 metric tonnes/day of liquid oxygen for Oryx GTL– Ras Laffan Phase 1 Gas Plant.

NASA - Langley National Transonic Facility, Hampton, VA

Manufacture of air separation unit (ASU), from 5000 series aluminium, generating 430 metric tonnes/day of liquid nitrogen and high-purity liquid argon.

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