154CM is a type of stainless steel developed and manufactured in the United States by Crucible Materials Corporation (now - Crucible Industries). Crucible 154CM is a modification of martensitic stainless steel type 440C to which molybdenum has been added. It was originally developed for tough industrial applications and combines three principal elements: carbon, chromium, and molybdenum. Hitachi Corporation of Japan copied the properties of this steel for their own brand known as ATS-34.
- Valve Ports
154CM contains the following:
- Carbon 1.05%
- Chromium 14.00%
- Manganese 0.50%
- Molybdenum 4.00%
- Silicon 0.30%
- Iron 80.15%
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