EST Production Process
EST is manufactured at DAIDO CASTINGS Nagoya Plant
EST History
| 1970～ | |
|---|---|
| 1973 | DAIDO STEEL developed automatic PPW engine valve equipment. |
| 1980～ | |
| 1987 | Automatic PPW equipment for oilfield tubes was developed as a national project to improve corrosion resistance. |
| 1990～ | |
| 1998 | Cooperation with Shell Global Solutions started in order to develop EST. |
| 1999 | Basic data collected from Shell's test plant.
Optimum weld overlay composition (45Cr-50Ni-1Mo) determined |
| 2000～ | |
| 2000 | Commercial trials in naphtha feed ethylene furnaces started in Japan |
| 2002 | Commercial trials in naphtha feed ethylene furnaces started in the Netherlands
A paper submitted to AIChE |
| 2004 | Commercial trials in ethane feed furnaces started in Japan. Reduction in coke formation by "Self healing effect" proven. |
| 2005 | No carburization of base tube after 5 years of operation in the naphtha feed furnace in Japan. "Dam effect" proven.
A paper submitted to AIChE |
| 2006 | Commercial trials in ethane feed furnaces started in Japan and USA. |
| 2007 | Delivery of EST to major global ethylene manufacturers started. Papers submitted to AIChE and NACE |
| 2009 | Commercial installations, Japan, USA, EU, etc. |
| AIChE：American Institute of Chemical Engineers NACE：The National Association of Corrosion Engineers |
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