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Green sand casting refers to a type of metal casting process where a mixture of sand, clay, and water is used to create a mold. “Green” indicates that the mold is not baked or cured — it retains moisture in its composition. This moisture helps bind the sand particles together, providing strength to the mold while also enabling the easy removal of the casting after the metal has cooled.

CF8M is a cast stainless steel grade of the austenitic family, commonly known as the ASTM A351 Grade CF8M. Its chemical composition primarily consists of iron, chromium (around 18%), nickel (approximately 8%), and a small percentage of molybdenum. This specific blend provides CF8M with remarkable properties, notably its resistance to corrosion, oxidation, and diseases caused by aggressive chemicals.