Conclusion
Compacted graphite irons (CGI)

In 2012, worldwide production of vermicular graphite castings was in the region of 90,000 to 100,000 t. The most numerous applications are in land transport (96% of production tonnage).

In order of magnitude, these 100,000 t represent 2% and 4% respectively of the tonnages of grey and GS cast irons used in the automotive sector in 2012.

Today, the global situation is, to a first approximation, as follows:

• in diesel engines :

  • passenger cars + commercial vehicles excluding trucks and buses: 25 M vehicles – Share of vermicular graphite cast iron today: 1.0 to 1.3 M, i.e. around 4 to 5%,

  • trucks and buses: 4 M vehicles – Share of vermicular graphite cast iron today: 0.4 to 0.5 M, i.e. around 10 to 15%;

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