We offer a comprehensive range of UKAS 17025 approved mechanical, metallurgical, corrosion and analytical testing services to meet the needs of our customers in a highly competitive industry. We pride ourselves on delivering the highest quality with speed, integrity, accuracy and exceptional customer service.

Mechanical Testing

Our mechanical testing is carried out to the highest standard by experienced technicians. The laboratory is temperature controlled and all equipment is maintained and calibrated to national standards to ensure the accuracy of our test results.

The following is a summary of our mechanical testing capabilities.

Tensile tests - room temperature

Tensile tests - elevated temperature

Impact tests - Charpy

Impact tests - Izod

Stress rupture tests

Hardness tests - Brinell

Hardness tests - Rockwell

Hardness tests - Vickers

Bend tests

Inspection of test pieces

Metallurgical testing

We boast one of the UK’s leading laboratories carrying out metallurgical testing work for multiple industrial sectors including aerospace, automotive, oil and gas, biomedical, construction and power generation.

Employing degree qualified metallurgists and technicians, the department performs a comprehensive range of tests covering a wide range of materials, including titanium, aluminium, copper, carbon and alloys steels, stainless steels & high strength nickel alloys.

Our metallurgical testing services include grain size, cleanliness, grain structure and surface decarburisation checks, with certification to the relevant national or customer defined specification. Nickel alloys are regularly checked to the API Standard.

Our equipment includes three Leica optical microscopes (magnification to x1500) with image capturing software linked to our bespoke computer system, allowing us to create metallurgical reports with photographic records to satisfy the most stringent specifications.

In addition we have an Olympus Stereoscope (magnification up to x64), and a full range of sectioning, grinding and polishing equipment for sample preparation. An extensive range of chemicals is used for etching a wide range of metals and alloys.

We also have a Mitutoyo micro-hardness tester, with accompanying computer and dedicated software utilising loads of 0.05kg to 1kg and magnifications from x100 to x1000.

Our failure investigations service employs all testing methods available for full material examination to provide essential evidence in the identification of the cause of failure.

Analytical testing

The chemical analysis department was established to complement the successful mechanical and metallurgical departments.

We use two optical emission spectroscopes to analyse metallic elements in a wide range of alloys. With special masks and adaptors, we can analyse small samples down to 8 mm diameter.

We also use Leco and Eltra analysers to carry out gas determinations for carbon, sulphur, oxygen and nitrogen.

We offer a same day service for analytical testing by arrangement.

Corrosion testing

Understanding how materials behave in operating environments is essential. Using temperature controlled baths, we can test many samples simultaneously. Temperature control can be automated and recorded electronically if required. Hotplates are used to test materials in boiling solutions.

We perform a range of standard corrosion tests, including:

Other testing services


We are capable of cutting sections up to 400mm diameter. Variable cutting speeds allow us to machine a vast array of materials; we use carbide-tipped blades to enable us to cut high strength nickel-based alloys.

We prepare tensile test pieces in diameters ranging from 3.99mm to 20mm.

Our machine inventory comprises:

Heat treatment of test samples

We have four dedicated furnaces for carrying out proof and post weld heat treatments. Two are calibrated to API 6A and two to AMS2750, required for heat treating to tight tolerances. We are able to apply oil or water quench with agitation to meet relevant standards.

Details of heat treatment applied to test pieces are included on our test certificates; we are able to produce and e-mail or print furnace charts thanks to the individual temperature recorder.

Specialist machining

Ashmark is a specialist machining department within the Special Testing site with manual machinery, giving us the capability for turning, milling, grinding, broaching and sawing.

Our skilled engineers produce test specimens to standard and modified specifications from a wide range of materials. Specimens are used for research and development purposes and some are required for tooling set-ups by clients.

Ashmark specialise in extracting and machining components from limited material and defined areas.