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US Standard Industrial Classification (SIC) Code Lookup

Division: D - Manufacturing

US-SIC Code 3399 - Primary Metal Products, Not Elsewhere Classified

Industry Description

Establishments primarily engaged in manufacturing primary metal products, not elsewhere classified, such as nonferrous nails, brads, and spikes, and metal powder, flakes, and paste.

Business Examples

Common types of business activities within US SIC 3399 - Primary Metal Products, Not Elsewhere Classified are:

  • Aluminum atomized powder
  • Balls, steel
  • Brads, nonferrous metal (including wire)
  • Flakes, metal
  • Iron powdered
  • Laminating steel for the trade
  • Nails, nonferrous metal (including wire)
  • Paste, metal
  • Powder, metal: except artists'materials
  • Reclaiming ferrous metals from clay
  • Recovery of iron ore from open hearth slag
  • Silver powder, except artists'materials
  • Spikes, nonferrous metal (including wire)
  • Staples, nonferrous metal (including wire)
  • Tacks, nonferrous metal (including wire)

IBISWorld Industry Research Report

Iron & Steel Manufacturing in the US (33111)

Revenue 2025

$109.3bn

Growth 2025

4.44%

Key Trends

  • Volatile steel prices and the pandemic have challenged steel producers

  • Recent interest rate increases discourage future infrastructure investment

  • Steel companies will need to expand their operating capacity

Products and Services

US-SIC Hierarchy 3399 - Primary Metal Products, Not Elsewhere Classified

US-SIC Code 3399 - Primary Metal Products, Not Elsewhere Classified sits in the 2-digit Primary Metal Products, Not Elsewhere Classified sector. US SIC codes can be 2 to 8 digits and the further along the hierarchy, the more detailed and specific the category will be.

Division: D

Division Title: Manufacturing

2 Digits 3 Digits 4 Digits

Extended US-SIC Hierarchy for 3399 - Primary Metal Products, Not Elsewhere Classified

For business marketing and targeting, US SIC Codes have been extended to provide more specific classifications within US-SIC 3399 - Primary Metal Products, Not Elsewhere Classified. Extended US SIC Codes are being continuously updated to reflect the current business environment.

6 Digit SIC Codes

  • 339901 Balls-steel bronze etc (manufacturers)
  • 339902 Laminations-motor & transformer (mfrs)
  • 339903 Powder metal parts-industrial (mfrs)
  • 339904 Metal specialties-manufacturers

8 Digit SIC Codes

  • 33990000 Primary metal products
  • 33990100 Metal powders, pastes, and flakes
  • 33990101 Aluminum atomized powder
  • 33990102 Flakes, metal
  • 33990103 Iron, powdered
  • 33990104 Paste, metal
  • 33990105 Powder, metal
  • 33990106 Silver powder
  • 33990200 Metal fasteners
  • 33990201 Brads: aluminum, brass, or other nonferrous metal or wire
  • 33990202 Nails: aluminum, brass, or other nonferrous metal or wire
  • 33990203 Spikes, nonferrous metal or wire
  • 33990204 Staples, nonferrous metal or wire
  • 33990205 Tacks, nonferrous metal or wire
  • 33999900 Primary metal products, nec
  • 33999901 Iron ore recovery from open hearth slag
  • 33999902 Laminating steel
  • 33999903 Reclaiming ferrous metals from clay
  • 33999904 Steel balls
  • 33999905 Thermite
  • 33999906 Cryogenic treatment of metal

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US SIC Code Directory

Each US SIC Code is part of a Division, which corresponds with a numerical range. Select a Division category from the table below, then drill down to discover the industries within that Division.

Division US-SIC Code Sector title
A 01-09 Agriculture, Forestry, and Fishing
B 10-14 Mining
C 15-17 Construction
D 20-39 Manufacturing
E 40-49 Transportation, Communications, Electric, Gas, and Sanitary Services
F 50-51 Wholesale Trade
G 52-59 Retail Trade
H 60-67 Finance, Insurance, and Real Estate
I 70-89 Services
J 90-99 Public Administration

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