The UK’S Leading
Material Testing Specialists

Exceeding Industry Standards

Metal Proving Services Limited is a comprehensive mechanical and metallurgical inspection facility employing advanced in house material sectioning and machining facilities. 

The laboratory benefits from precision sectioning, 5-axis machining, metallographic preparation, corrosion suites, metallographic and scanning electron microscope analysis.

Metal Proving Services Limited is a sister company to Goodwin Steel Castings Limited who since 1883 have produced technically advanced steels and nickel alloy castings for critical duty applications within the petrochemical, power generation, defence and nuclear sectors.

As a subsidiary of Goodwin PLC the laboratory benefits from the four year Goodwin apprentice programme and the direct technical supervision and assistance from experienced industry experts who are actively participating in the quality control of raw material processing whether it be mechanical or refractory biased.


Metal Proving Services can machine a standard ASTM tensile specimen and three ASTM charpy impact specimens in less than 15 minutes using the Mazak 5-axis machining centre. The laboratory utilizes a bespoke software package to maintain traceability and provide digital documentation to ISO17025.


Operating two shifts the laboratory is focused on providing quality testing whilst employing the latest technology to offer significant cost reduction. Naturally expedited testing is made available to clients with an urgent requirement for inspection. Third party verification / classification inspection is facilitated by the Metal Proving Services management.

The laboratory is UKAS Accredited to BS EN ISO 17025