Material Matters

Spectrographic are resellers of refurbished hardness testers, as well as selling other used and new materials testing equipment. Recently, we have sold a Used Leitz Micro Hardness Tester and Iworks Ex metallurgical software to University College Dublin. The whole system was fully checked by our service engineers, and then the Software for Microscopy and MSDX501 camera was added by Liam our Microscope specialist. The software system can do the basic capture and measure of the Leitz Micro Hardness Tester that can measure metallurgy samples at a magnification of up to x400. At the moment we have another Leitz HV tester in stock, so if you would like to know more information about this full software system please contact spectrographic on: Email:  sales@spectrographic.co.uk Tel: 01274 966173 Website:  www.spectrographic.co.uk

At Spectrographic as a metallurgical suppliers we offer re-calibration of Hardness Tester test blocks.  There are different types of hardness test reference blocks which relate to the testing for hardness.  These are Rockwell, Vickers, Micro Vickers, Knoop, Brinell and Leeb Test Blocks. The BS EN ISO 6507-3:2005 relates to metallic materials, Vickers hardness test and calibration of reference test blocks.  The extracted information of this standard Calibration of reference blocks appears in section 9 - Validity, it states: " The reference block is only valid for the scale for which it was calibrated. The calibration validity should be limited to a duration of 5 years.  Attention is drawn to the fact that, for Al- and Cu-alloys, the calibration validity could be reduced to 2-3 years". The question here is are all the test blocks valid that are currently been used for hardness testing within your metallurgy department.  This should become apparent...

Spectrographic have been refurbishing used hardness testers for the past 5 years.  These were an addition to our used metallurgical equipment range which include cutters, mounting presses, grinders and polishers. Recently we were asked by one our customers how to adjust a Rockwell hardness tester's  values, as we are so keen to help, we supplied them with a video to demonstrate how it should be done. Please find below our video of adjusting the values of the Rockwell hardness tester. Spectrographic hope that the information on how to do this operation with the hardness tester, was interesting to you. If you have any requirements for a used hardness tester, please contact the Spectrographic team. Email:  sales@spectrographic.co.uk Tel: 01274 966173 Website:  www.spectrographic.co.uk