Structure of SIC Code 33 - Primary Metal Industries
Hierarchy Industry: Manufacturing
Categories: Each industry is classified within a hierarchy, starting from the general (3-digit) to more specific (4-digit) industry codes. The hierarchy also includes Extended SIC Codes, which provide an even more detailed 6-digit structure.
Categories
General
Specific
Hierarchy
3-Digits
4-Digits
6-Digits
3313 - Electrometallurgical Products, except Steel
331 - Steel Works, Blast Furnaces, and Rolling and Finishing Mills
3315-01 - Wire (Manufacturing)
3315-02 - Fence Posts & Fittings (Manufacturing)
3315-03 - Wire Forms & Specialties (Manufacturing)
3315-04 - Bag Ties (Manufacturing)
3315-05 - Cables Steel (Manufacturing)
3315-07 - Nails & Tacks (Manufacturing)
3315-98 - Steel-Wiredrawing/Stl Nails/Spikes (Manufacturing)
3315 - Steel Wiredrawing and Steel Nails and Spikes
3316-01 - Steel-Bar/Sheet/Strip/Tube & Etc (Manufacturing)
3316-02 - Metals-Corrugated (Manufacturing)
3316-03 - Steel Straightening (Manufacturing)
3316-04 - Pipe Corrugated Metal (Manufacturing)
3316 - Cold-rolled Steel Sheet, Strip, and Bars
3317-01 - Boiler Tubes (Manufacturing)
3317-02 - Pipe-Stainless (Manufacturing)
3317-04 - Medical Gas Piping Systs-Install (Manufacturing)
3317-98 - Steel Pipe & Tubes (Manufacturing)
3317 - Steel Pipe and Tubes
3312-01 - Steel Mills (Manufacturing)
3312-02 - Tubing (Manufacturers)
3312-03 - Expanded Metals (Manufacturers)
3312-04 - Steel Processing (Manufacturing)
3312-05 - Ironwork (Manufacturing)
3312-06 - Tubing-Metal-Fabricators (Manufacturing)
3312-08 - Tubing-Metal-Machinery (Manufacturers)
3312-09 - Wire Products (Manufacturing)
3312-11 - Rails & Accessories (Manufacturers)
3312-12 - Stainless Steel (Manufacturers)
3312-13 - Tin Plate (Manufacturers)
3312-14 - Coil Tubing (Manufacturers)
3312-15 - Coils-Plate (Manufacturers)
3312-16 - Coils-Pipe (Manufacturers)
3312-17 - Hydroforming (Manufacturers)
3312-18 - Scrap Metal Products (Manufacturing)
3312-98 - Steel Works/Blast Furnaces/Rolling Mills (Manufacturing)
3312 - Steel Works, Blast Furnaces (including Coke Ovens), and Rolling Mills
3321-01 - Foundries-Iron (Manufacturing)
3321-02 - Foundries-Gray Iron (Manufacturing)
3321-03 - Manhole Covers (Manufacturing)
3321-04 - Foundries-Ductile Iron (Manufacturing)
3321-05 - Sash Balances & Weights (Manufacturing)
3321-06 - Castings-Iron (Manufacturing)
3321-07 - Foundries-Nickel & Alloys (Manufacturing)
3321-08 - Sewer Pipe (Retail) (Manufacturing)
3321-98 - Gray & Ductile Iron Foundries (Manufacturing)
3321 - Gray and Ductile Iron Foundries
3322 - Malleable Iron Foundries
3324 - Steel Investment Foundries
3325-01 - Castings-Ferrous Metals (Manufacturing)
3325-02 - Foundries-Steel (Manufacturing)
3325-03 - Steel Mill Services (Manufacturing)
3325-05 - Castings-Steel (Manufacturing)
3325-06 - Metal Cutting Coolant Systems (Manufacturing)
3325-08 - Steel-Tool (Manufacturing)
3325-09 - Foundries Various Metals (Manufacturing)
3325 - Steel Foundries, Not Elsewhere Classified
3331 - Primary Smelting and Refining of Copper
3334 - Primary Production of Aluminum
333 - Primary Smelting and Refining of Nonferrous
3339-01 - Smelters-Refiners-Precious Metals (Manufacturing)
3339-02 - Smelters & Refiners-Base Metals (Manufacturing)
3339-03 - Beryllium (Manufacturing)
3339-04 - Tantalum (Manufacturing)
3339-06 - Silicon (Manufacturing)
3339-98 - Primary Smelting/Refining-Nonferrous Mtl (Manufacturing)
3339 - Primary Smelting and Refining of Nonferrous Metals, except Copper and Aluminum
3341-01 - Babbitting (Manufacturing)
3341-02 - Silver Recovery (Manufacturing)
3341-03 - Refining (Manufacturing)
3341-04 - Scrap Film (Manufacturing)
3341-06 - Brass Mills (Manufacturing)
3341-98 - Secondary Smelting & Refining-Nonferrous (Manufacturing)
3341 - Secondary Smelting and Refining of Nonferrous Metals
3351-01 - Metal Shapes-Extruded (Manufacturing)
3351-03 - Copper-Sheet Rod Tube Etc (Manufacturing)
3351-04 - Copper Products (Manufacturing)
3351-07 - Iron Sheet Rod & Tube (Manufacturing)
3351-98 - Rolling Drawing/Extruding-Copper (Manufacturing)
3351 - Rolling, Drawing, and Extruding of Copper
3357-01 - Fiber Optics Equipment ment & Systems (Manufacturing)
3357-02 - Cable (Manufacturing)
3357-03 - Cables-Insulated (Manufacturing)
3357-04 - Cord Sets & Cords-Electric (Manufacturing)
3357-05 - Wire Harnesses-Electrical (Manufacturing)
3357-06 - Wire Rope (Manufacturing)
3357-98 - Drawing/Insulating-Nonferrous Wire (Manufacturing)
3357 - Drawing and Insulating of Nonferrous Wire
3356-01 - Lead Products (Manufacturing)
3356-02 - Solder (Manufacturing)
3356-03 - Metal-Rolling & Forming (Manufacturing)
3356-04 - Gold Filled & Rolled Gold Plate (Manufacturing)
3356-05 - Tin (Manufacturing)
3356-06 - Tin Edging (Manufacturing)
3356-07 - Zirconium (Manufacturing)
3356-08 - Tungsten (Manufacturing)
3356-09 - Lead Shielding Manufacturers
3356-98 - Rolling Drawing Extruding-Nonferrous Mtl (Manufacturing)
3356 - Rolling, Drawing, and Extruding of Nonferrous Metals, except Copper and Aluminum
3355-01 - Aluminum Fabricators (Manufacturing)
3355-98 - Aluminum Rolling & Drawing NEC (Manufacturing)
3355 - Aluminum Rolling and Drawing, Not Elsewhere Classified
3354 - Aluminum Extruded Products
3353 - Aluminum Sheet, Plate and Foil
3363 - Aluminum Die-Castings
3364 - Nonferrous Die-Castings, except Aluminum
336 - Nonferrous Foundries (Castings)
3365-01 - Foundries-Aluminum Brass Bronze (Manufacturing)
3365-02 - Castings-Aluminum (Manufacturing)
3365-03 - Cooking Utensils (Manufacturing)
3365 - Aluminum Foundries
3366-01 - Bronze (Manufacturing)
3366-02 - Brass (Manufacturing)
3366-03 - Castings-Bronze (Manufacturing)
3366-05 - Castings-Resin (Manufacturing)
3366-06 - Art Casting (Manufacturing)
3366-07 - Propellers (Manufacturing)
3366-98 - Copper Foundries (Manufacturing)
3366 - Copper Foundries
3369-01 - White Metal Castings (Manufacturing)
3369-03 - Castings (Manufacturing)
3369-04 - Foundries-Titanium (Manufacturing)
3369-08 - Metal Molder (Manufacturing)
3369-98 - Nonferrous Foundries-Ex Aluminum/Copper (Manufacturing)
3369 - Nonferrous Foundries, except Aluminum and Copper
3398-01 - Heat Treating Metal (Manufacturing)
3398-02 - Shot Peening (Manufacturing)
3398-03 - Lead Burning (Manufacturing)
3398-04 - Cryogenic Processing (Manufacturing)
3398 - Metal Heat Treating
3399-01 - Balls-Steel Bronze Etc (Manufacturing)
3399-02 - Laminations-Motor & Transformer (Manufacturing)
3399-03 - Powder Metal Parts-Industrial (Manufacturing)
3399-04 - Primary Metal Products NEC (Manufacturing)
3399 - Primary Metal Products, Not Elsewhere Classified