Although compacted graphite iron has been known for more than four dec
ades, the absence of a reliable mass-production technique has resulted
in relatively little effort to exploit its operational benefits. Howe
ver, a proven on-line process control technology developed by SinterCa
st allows for series production of complex components in high-quality
CGI. The improved mechanical properties of compacted graphite iron rel
ative to conventional gray iron allow for substantial weight reduction
in gasoline and diesel engines or substantial increases in horsepower
, or an optimal combination of both. Concurrent with these primary ben
efits, CGI also provides significant emissions and fuel efficiency ben
efits allowing automakers to meet legislated performance standards. Th
e operational and environmental benefits of compacted graphite iron to
gether with its low cost and recyclability reinforce cast iron as a pr
ime engineering material for the future.