Transcription of 102 - Sorelmetal
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102 - Sorelmetal
1024 6 % SILICON DUCTILE IRONSFOR HIGH TEMPERATURE SERVICEbyHans Roedter, Sorelmetal Technical ServicesThe demand for more environmentally friendly vehicles with increased fuel efficiency has expanded the need for specialised materials like SiMo (high silicon and high silicon-molybdenum) Ductile Iron. These vehicles usually have smaller engines running at higher temperature and at higher compression rate. This requires, for exhaust manifolds and turbo charger housings, special materials designed to operate at high temperature: SiMo Ductile Iron meets the requirements. Moreover, these castings are able to perform and maintain dimensions for many thousands of cycles that can range from below freezing temperatures to those greater than 1400oF (750oC).
The carbon content is lower than in regular Ductile Iron, to 2.5% - 3.4%. Usually high carbon content contributes to reduce the shrinkage tendency;
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