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Kovar

Invar 36

Alloy 42

Or Explore Our Other Alloys

Welcome to City Special Metals

Widest Acknowledged Range of Low Expansion Alloys in Europe Expert Knowledge and Advice with over 70 years Experience Combined

Welcome to City Special Metals Ltd. We’re 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.

We’ll guide you through the order process to ensure you’re getting the right product.  Speak to us today, read more about our company or view our range of special metals here

Specialist Alloys

Alloys We Supply

  • Kovar

    Kovar – Manufactured in the UK Kovar is a nickel-iron-cobalt, controlled expansion alloy. It’s expansion characteristics match both borosilicate...

  • Invar 36

    Bespoke Invar 36 Products – Manufactured in the UK Invar 36 is a nickel-iron, low expansion alloy that exhibits...

  • Alloy 42

    Alloy 42 is an iron-nickel alloy, consisting of 42% nickel. This controlled expansion alloy has low thermal expansion characteristics...

  • OFHC Copper

    OFE (Oxygen-Free Electronic) or OFHC Copper is the highest purity grade of copper at 99.99%. OFHC Copper is electrolytically...

  • Titanium

    City Special Metals manufacture specialist Titanium alloy products across grades 1-12 for a variety of specialist applications. With experience...

  • Inconel 625

    Inconel 625 (Alloy 625) is a nickel-chromium alloy with the addition of refractory metals columbium and molybdenum. As a...

  • Inconel 718

    Inconel 718 (Alloy 718) is a well-known austenitic nickel-based super alloy which exhibits excellent tensile and impact strength, even...

  • Nickel Alloys 200/201

    Commercially pure or low-alloy nickel alloys has characteristics that are useful in several fields, notably chemical processing and electronics....

  • Brazing Alloys

    Brazing is a metal-joining process whereby a filler metal or brazing alloy is heated above its melting point and...

  • Molybdenum

    With its unique mechanical and chemical properties, molybdenum is an outstanding material that can meet the most exacting requirements....

  • 17/4PH

    17/4PH is a high-strength, stainless steel made up of chromium, nickel, copper and niobium. With precipitation-hardening and martensitic qualities,...

  • Aluminium

    Aluminium alloys are alloys in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium,...

The City Special Metals warehouse is home to a much wider range of alloys, so please Contact Us if you don't see the alloy you're looking for in the list above.

Skilled Personnel

Over 70 Years of Industry Knowledge & Expertise.

Dedicated To Quality

AS9120 / ISO 9001 Quality Assurance

Global Leaders

Over 2,500 stock lines in 50 different grades.

Accreditations

Market Sectors

    Cryogenics
    High Vacuum
    Medical
    Motor Sport & Automotive
    Mould Tooling
    Ultra-High Vacuum
    Composite Tooling
    Layup Tooling
    Aerospace & Defence
    Electronics & Micro Electronic
    Optical & Laser
    Thermal Solutions
    Energy
    Oil & Gas

Services we offer

Through in-house and managed services, our capabilities include managing each supply chain from planning to delivery.

Our realistic lead times and updates on-request will keep you informed throughout each project process, from the start of the project through every delivery thereafter. Read more about our Capabilities within the Company area of our website.