John Mayes Engineers

John Mayes Engineers, trading as Mayes-UK, is a long-established, family-run UK manufacturer founded in 1959, specialising in forged stainless steel pipe fittings and components. They serve demanding sectors such as petrochemical, process, and energy industries, catering to refinery grade and Norsok materials. Mayes-UK is a regional distributor for Hy-lok® fittings and an approved distributor for I.M.L. Italy, holding significant stock of their forged products.

The company offers both standard industrial forged pipe fittings and bespoke contract manufacturing services, including custom parts based on drawings. Their in-house machine shop features advanced Mazak CNC lathes and mills with 5-axis capabilities, enabling them to machine a wide range of steel grades and difficult nickel alloys. Mayes-UK also provides comprehensive in-house non-destructive testing (NDT) services, including hydrotesting, PMI, MPI, DPI, X-ray, and Ultrasonic Testing, performed by qualified personnel and certified by an independent test house.

Mayes-UK provides third-party inspection services, including visual and dimensional checks, documentation review, and packing inspections, with material certification to EN10204 3.2 available. They also offer painting services for finished products. The company prioritises customer service, aiming for precise and timely delivery of high-quality materials sourced from Western EU, USA, or Japan, with all products certified to EN10204-3.1 as standard.