https://cityspecialmetals.com/
City Special Metals is a globally recognised stockist of low & controlled expansion alloys, including: Invar 36, Kovar& Alloy 42. Our team is dedicated to delivering high quality, fully certified alloys from a UK stock inventory of unrivalled size. This dedication has followed us since establishment in 2001 and contributed to us achieving our AS9120/ISO9001 Quality Management System accreditation, held since 2015. We have experience working in a vast range of market sectors and we’re confident in our ability to deliver. Our team will work with you to deliver bespoke speciality metals for any requirement. Our alloys are professionally cut, profiled and machined for all applications – always to specification, always on time. ... 
United Kingdom