NAICS Code 331511

NAICS 331511

NAICS Code 331511 – Iron Foundries

Definition of NAICS Code 331511: 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 man-hole covers, cast iron pipe, cast iron skillets). Establishments in this industry purchase iron made in other establishments.

  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 331511

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

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

Other Index Entries for NAICS 331511

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Cast iron brake shoes, railroad, manufacturing
  • Cast iron pipe and pipe fittings manufacturing
  • Cast iron railroad car wheels manufacturing
  • Castings, compacted graphite iron, unfinished, manufacturing
  • Castings, malleable iron, unfinished, manufacturing
  • Castings, unfinished iron (e.g., ductile, gray, malleable, semisteel), manufacturing
  • Cooking utensils, cast iron, manufacturing
  • Ductile iron castings, unfinished, manufacturing
  • Ductile iron foundries
  • Fittings, soil and pressure pipe, cast iron, manufacturing
  • Foundries, iron (i.e., ductile, gray, malleable, semisteel)
  • Gray iron foundries
  • Industrial molds, steel ingot, manufacturing
  • Iron castings, unfinished, manufacturing
  • Iron foundries
  • Malleable iron foundries
  • Manhole covers, cast iron, manufacturing
  • Molds for casting steel ingots manufacturing
  • Molds, steel ingot, industrial, manufacturing
  • Pearlitic castings, malleable iron, unfinished, manufacturing
  • Pipe and pipe fittings, cast iron, manufacturing
  • Pipe couplings, cast iron, manufacturing
  • Rolling mill rolls, iron, manufacturing
  • Semisteel foundries
  • Sewer pipe, cast iron, manufacturing
  • Soil pipe, cast iron, manufacturing
  • Water pipe, cast iron, manufacturing

Suggested Insurance Conversion Table for NAICS Code 331511

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 3081NAICS 331511
  • CA WC: 3081
  • DE WC: 0425, 0427
  • PA WC: 425, 427
  • MI WC: 3081
  • NJ WC: 3081
  • NY WC: 3081
  • WY WC: 331511
  • GL: 53425
  • SIC: 3321

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 331511 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 31-33: Manufacturing
  • Subsector 331: Primary Metal Manufacturing
  • Industry Group 3315: Foundries
  • Industry 33151: Ferrous Metal Foundries
  • 6 Digit Code(s) NAICS 331511: Iron Foundries
  • 6 Digit Code(s) NAICS 331512: Steel Investment Foundries
  • 6 Digit Code(s) NAICS 331513: Steel Foundries (except Investment)
Other helpful NAICS Downloads

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NAICS Code 331511