TTI - Letchworth
The TTI Group heat treatment facility at Letchworth is the most diverse within the organisation. It provides an extensive range of heat treatment processes for local industry as well as providing a national and international service to cover specialist processes for the aerospace and defence sectors. All of the traditional processes such as case hardening, induction hardening, nitriding, nitrocarburising and vacuum heat treatment are also available on this one site. A fully equipped laboratory and an extensive transport network support the production facilities.
Approvals
TTI Group is well equipped to service a wide range of customers from its Letchworth site. Indeed the site carries many approvals from well established engineering companies such as Rolls-Royce, BAe Systems, TRW Aeronautical Engineering, Royal Ordnance and GEC. Letchworth is also CAA approved and like all of the TTI group companies is approved to ISO 9001:2008.
HIP
The site also houses TTI's Hot Isostatic Pressing (HIP) facility which has been expanded with a further £1 million investment over the course of 2010. This particular facility services customers throughout the whole of the UK.