New Materials Standard for MIM Materials published: ISO 22068

February 15, 2013

After many years of development, an ISO standard has finally been published for MIM materials. Developed under the auspices of ISO/TC 119 SC 5, the new MIM materials standard was the result of contributions from the Japan Powder Metallurgy Association (JPMA), the Metal Injection Molding Association (MIMA) of the Metal Powder Industries Federation (MPIF) and the EuroMIM Group from the European Powder Metallurgy Association (EPMA).

A working group of ISO/TC 119 SC 5 coordinated by Dr Brian James of Hoeganaes Corporation, USA, representing USA/ANSI drafted the new standard as a committee draft (CD) after a number of meetings to define the content of the document.

ISO 22068 “Sintered Metal Injection Moulded Materials – Specifications”, defines the requirements for the chemical composition and the mechanical and physical properties of sintered MIM materials.

It is intended to provide design and materials engineers with necessary information for specifying materials in components manufactured by means of the MIM process only. It does not apply to structural parts manufactured by other Powder Metallurgy routes, such as press and sinter or powder forging technologies.

ISO 22068 outlines a designation system to be used for the MIM materials it specifies. The materials covered include low-alloy steels (both as-sintered as well as heat treated conditions), stainless steels (both as-sintered as well as heat treated conditions), soft-magnetic materials (as-sintered) and titanium alloys (as-sintered). The specification has both normative (mandatory) values as well as informative (typical) values for each of the materials.

ISO 22068 complements the previously existing standards for MIM material specifications from MPIF (MPIF Standard 35, Material Specifications for Metal Injection Molded Parts) and ASTM International (ASTM B883 – Standard Specification for Metal Injection Molded (MIM) Materials).   


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