331511

Iron Foundries

This U.S. industry comprises establishments primarily engaged in pouring molten pig iron or iron alloys into molds to manufacture castings (e.g., cast iron manhole covers, cast iron pipe, cast iron skillets). Establishments in this industry purchase iron made in other establishments. Cross-References.

["Establishments primarily engaged in manufacturing iron castings and further manufacturing them into finished products are classified based on the specific finished product."]

331512

Steel Investment Foundries

This U.S. industry comprises establishments primarily engaged in manufacturing steel investment castings. Investment molds are formed by covering a wax shape with a refractory slurry. After the refractory slurry hardens, the wax is melted, leaving a seamless mold. Investment molds provide highly detailed, consistent castings. Establishments in this industry purchase steel made in other establishments. Cross-References. Establishments primarily engaged in--

["Manufacturing steel castings (except steel investment castings)--are classified in U.S. Industry 331513, Steel Foundries (except Investment); and","Manufacturing steel investment castings and further manufacturing them into finished products--are classified based on the specific finished product."]

331513

Steel Foundries (except Investment)

This U.S. industry comprises establishments primarily engaged in manufacturing steel castings (except steel investment castings). Establishments in this industry purchase steel made in other establishments. Cross-References. Establishments primarily engaged in--

["Manufacturing steel investment castings--are classified in U.S. Industry 331512, Steel Investment Foundries; and","Manufacturing steel castings and further manufacturing them into finished products--are classified based on the specific finished product."]