Major Group 33: Primary Metal Industries
Reference listings for legacy Standard Industrial Classification (SIC) codes under Division D: Manufacturing. Select an industry category below to trace its modern NAICS equivalent.
SIC Codes in this Major Group (26)
3312
Steel Works, Blast Furnaces
→
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
→
3321
Gray and Ductile Iron Foundries
→
3322
Malleable Iron Foundries
→
3324
Steel Investment Foundries
→
3325
Steel Foundries, NEC
→
3331
Primary Smelting and Refining of Copper
→
3334
Primary Production of Aluminum
→
3339
Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum
→
3341
Secondary Smelting and Refining of Nonferrous Metals
→
3351
Rolling, Drawing, and Extruding of Copper
→
3353
Aluminum Sheet, Plate, and Foil
→
3354
Aluminum Extruded Products
→
3355
Aluminum Rolling and Drawing, NEC
→
3356
Rolling, Drawing, and Extruding of Nonferrous Metals, Except Copper and Aluminum
→
3357
Drawing and Insulating of Nonferrous Wire
→
3363
Aluminum Die-Castings
→
3364
Nonferrous Die-Castings, Except Aluminum
→
3365
Aluminum Foundries
→
3366
Copper Foundries
→
3369
Nonferrous Foundries, Except Aluminum and Copper
→
3398
Metal Heat Treating
→
3399
Primary Metal Products, NEC
→