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Raw Material Supplier Quality Control
The raw material quality control performed by JB applies to both through-hardened and case-hardened steels and is based on multi-test inspections , according to our Material Guidelines. These multi-test inspections strictly follow the applicable international standards and include: raw material chemical composition analysis, macro- and micro-structure inspections, mechanical properties determination and the Raw Material Quality Control Final Report issue for lot traceability. This final report is released by the Metallographic Quality Control Laboratory and the Mechanical Testing Laboratory, which are parts of the JB Product Approval Control Department. Also, periodically, according to the JB internal protocols, all of the measuring instruments and devices are metrologically checked by our Metrological Laboratory.
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