Iso Tr 15931 Pdf Jun 2026

– Two-letter codes identifying the iron type and its graphite or matrix structure: JL : Grey (lamellar graphite) cast iron. JS : Spheroidal (nodular) graphite cast iron. JV : Compacted (vermicular) graphite cast iron. JY : Pig iron. JMB / JMW : Blackheart or Whiteheart malleable iron.

Keywords: iso tr 15931 pdf, ISO/TR 15931:2004, material designation systems, standards cross-reference, download iso tr 15931, material grade conversion, ISO technical report materials. iso tr 15931 pdf

ISO/TC 12 (Quantities and units) and ISO/TC 17 (Steel) periodically review this TR. Future revisions may include: – Two-letter codes identifying the iron type and