Structure of SIC Code 33 - Primary Metal Industries

Hierarchy Industry: Manufacturing

SIC 33 Details Page List All SIC Top Categories

Subcategories are listed in order from general (3-Digit) to more specific (4-Digit) industry. Each category link leads to the corresponding Code Details page.

Hierarchy

3-Digits

4-Digits

3313 - Electrometallurgical Products, except Steel 3315 - Steel Wiredrawing and Steel Nails and Spikes 3316 - Cold-rolled Steel Sheet, Strip, and Bars 3317 - Steel Pipe and Tubes 3312 - Steel Works, Blast Furnaces (including Coke Ovens), and Rolling Mills

331 - Steel Works, Blast Furnaces, and Rolling and Finishing Mills

3321 - Gray and Ductile Iron Foundries 3322 - Malleable Iron Foundries 3324 - Steel Investment Foundries 3325 - Steel Foundries, Not Elsewhere Classified

332 - Iron and Steel Foundries

3331 - Primary Smelting and Refining of Copper 3334 - Primary Production of Aluminum 3339 - Primary Smelting and Refining of Nonferrous Metals, except Copper and Aluminum

333 - Primary Smelting and Refining of Nonferrous

3341 - Secondary Smelting and Refining of Nonferrous Metals

334 - Secondary Smelting and Refining of Nonferrous

3351 - Rolling, Drawing, and Extruding of Copper 3357 - Drawing and Insulating of Nonferrous Wire 3356 - Rolling, Drawing, and Extruding of Nonferrous Metals, except Copper and Aluminum 3355 - Aluminum Rolling and Drawing, Not Elsewhere Classified 3354 - Aluminum Extruded Products 3353 - Aluminum Sheet, Plate and Foil

335 - Rolling, Drawing, and Extruding of Nonferrous

3363 - Aluminum Die-Castings 3364 - Nonferrous Die-Castings, except Aluminum 3365 - Aluminum Foundries 3366 - Copper Foundries 3369 - Nonferrous Foundries, except Aluminum and Copper

336 - Nonferrous Foundries (Castings)

3398 - Metal Heat Treating 3399 - Primary Metal Products, Not Elsewhere Classified

339 - Miscellaneous Primary Metal Products