Additional NDT processes

Additional NDT processes avaliable at Keighley Laboratories include:-

Relative Magnetic Permeability

Now covered under our UKAS accreditation to include specifications such as BS 5884,Electronic permeability meter ASTM A342 and A.U.W.E. 29108, Magnetic Permeability is the ability of a material to become magnetized.

The equipment, an electronic Permeability meter undertakes an accurate assessment of the materials relative permeability commonly referred to by the Greek letter µ and capable of measuring magnetic permeability in increments between 1.001µ to 1.999µ to a resolution of 0.001µ.

Typical Materials That Can Be Tested Include:-

austenitic stainless steels, austenitic irons and copper alloys such as aluminum bronze.

Ferrite Determination

Carried out using a digital meter to determine the ferrite content of corrosion and acidDigital meter used to determine to the ferrite content of corrosion and acid resistant steels resistant steels used in aggressive environments.

The applications for this instrument are numerous and include austenitic stainless steel welds, clad materials and base duplex steel.

Data is stored on the instrument giving the operator instant results as to the levels of delta ferrite. Other ferritic phases and transformed martensite are also recognised. Ferrite determination can also be carried out metallographically.

Coating Thickness Checks

Material coating measuring device
Further enhancing our NDT capabilities this unit is used for measuring coatings on all materials (ferrous and non-ferrous) easily, quickly and non-destructively.

Coating thickness checks can also be carried out metallographically
Typical Materials That Can Be Tested Include:-

Paints, varnishes and plastic coatings on ferrous and non-ferrous materials such as aluminium alloys, stainless steels, steels and irons. The unit can also check the thickness of anodised coatings on aluminium and electroplated coatings of zinc, chromium and copper etc..

Electrical Conductivity Measurement

Electrical conductivity is a property that measures how well a metal Equipment used to measure electrical current conductivity using the Eddy current method according to DIN EN 2004-1 and ASTM E 1004conducts electrical current and also provides information about its composition, microstructure or mechanical properties. The equipment measures electrical conductivity using the Eddy current method according to DIN EN 2004-1 and ASTM E 1004.

The high-precision instrument can be used for the following:-

Determination of the electrical conductivity of non-magnetic materials i.e.aluminium alloys, copper, stainless steel, monitoring heat treatment processes, determining the strength and hardness of wrought aluminium alloys in the aerospace and automobile industries and for the inspection of heat treatment damage.

Please contact the following people for more information:
testing@keighleylabs.co.uk – Technical Services
chemlab@keighleylabs.co.uk – Chemical Laboratory
ndt@keighleylabs.co.uk – Non Destructive Testing



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