Official definition
This Canadian industry comprises establishments primarily engaged in pouring molten pig iron or alloy irons, into moulds to manufacture castings.
Official classification fields for this page
Official classification fields taken from the current StatCan source bundle.
| Characteristic | Description |
|---|---|
| Official title | Iron foundries |
| Classification | NAICS Canada 2022 Version 1.0 |
| Publishing authority | Statistics Canada |
| Hierarchical level | Canadian industry |
| Parent code | 33151 - Ferrous metal foundries |
| International correspondence | C2823* |
| Source | https://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index |
| Source verification | 2026-05-05 |
Canada-wide tax and filing context
Canada-wide business, tax, and filing context from the local country pack and tax pack.
| Characteristic | Description |
|---|---|
| Tax authority | Canada Revenue Agency (CRA) |
| Business identifier | Business Number (BN): 9-digit identifier with program account suffixes such as RT0001 for GST/HST, RP0001 for payroll, and RC0001 for corporate income tax. |
| Filing requirements | Business Number registration; Form T2125 (Statement of Business or Professional Activities) attached to T1; Form T2 (Corporation Income Tax Return); Form T5013; Form GST34 |
| Sector authority | No cluster authority recorded in the local country pack. |
Examples
- cast iron soil or pressure pipe and fittings, manufacturing
- castings, unfinished, iron (e.g., ductile, grey, malleable, semisteel), manufacturing
- engine block castings, iron, unfinished, manufacturing
- grinding balls, cast iron, manufacturing
- hydrants, unfinished iron castings, manufacturing
- industrial moulds for casting steel ingots, manufacturing
- cast iron brake shoes, railroad, manufacturing
- cast iron pipe and pipe fittings, manufacturing
- cast iron railroad car wheels, manufacturing
- cast iron soil or pressure pipe and fittings, manufacturing
- castings, unfinished, compacted graphite iron, manufacturing
- castings, unfinished, iron (e.g., ductile, grey, malleable, semisteel), manufacturing
- engine block castings, iron, unfinished, manufacturing
- fittings, soil and pressure pipe, cast iron, manufacturing
- foundries, iron (i.e., ductile, grey, malleable, semisteel)
- grinding balls, cast iron, manufacturing
- hydrants, unfinished iron castings, manufacturing
- industrial moulds for casting steel ingots, manufacturing
- iron castings, unfinished, manufacturing
- manhole covers, cast iron, manufacturing
- municipal castings (manhole covers, sewer gratings), iron, manufacturing
- pearlitic castings, malleable iron, unfinished, manufacturing
- pipe couplings, cast iron, manufacturing
- rolling mill rolls, iron, manufacturing
- sewer pipe, cast iron, manufacturing
- soil pipe, cast iron, manufacturing
- water pipe, cast iron, manufacturing
Who is this code for
This code typically applies to:
Also relevant for
cast iron soil or pressure pipe and fittings, manufacturingengine block castings, iron, unfinished, manufacturinggrinding balls, cast iron, manufacturinghydrants, unfinished iron castings, manufacturingindustrial moulds for casting steel ingots, manufacturing
Source: STATCAN_TITLE, 2026-05-05
Classification Confidence Score
5 of 6 factors passing
8/ 10
Verified official source — naics-scian-2022-structure-v1-eng.csv (2026-05-05)
International crosswalk — ISIC Rev. 4 mapping: C2823*
Previous edition migration — NAICS 2017 to 2022 continuity confirmed
Complete hierarchy — 5 levels confirmed in hierarchy
Size or threshold documented — SME thresholds documented in federal tax pack
Trade or export match — No direct HS code correspondence in current bundle
Legacy crosswalk — Legacy system (SIC 1980) retired in this region
Business Profiles
When you might need code 331511
These role examples come from the official title and example wording attached to this code.
01
331511
Iron foundries
Use this page when the business is directly described by the official title or definition for 331511 Iron foundries. It is the closest source-backed checkpoint before BN registration, GST/HST review, banking onboarding, or internal classification work.
02
331511
cast iron soil or pressure pipe and fittings, manufacturing
Use this page when the activity is described in the official StatCan example wording as cast iron soil or pressure pipe and fittings, manufacturing. Compare the definition, exclusions, and nearby codes here before attaching 331511 Iron foundries to a business file.
03
331511
engine block castings, iron, unfinished, manufacturing
Use this page when the activity is described in the official StatCan example wording as engine block castings, iron, unfinished, manufacturing. Compare the definition, exclusions, and nearby codes here before attaching 331511 Iron foundries to a business file.
04
331511
grinding balls, cast iron, manufacturing
Use this page when the activity is described in the official StatCan example wording as grinding balls, cast iron, manufacturing. Compare the definition, exclusions, and nearby codes here before attaching 331511 Iron foundries to a business file.
Business categories in this branch
A rotating set of business activity examples linked to this part of the Canadian hierarchy.
In this section
- 331511Iron foundries
- 331514Steel foundries
ISIC Rev. 4 correspondence
C2823*Manufacture of machinery for metallurgy
Approximate correspondence
Rolling mill rolls and moulds for casting steel ingots, manufacturing
US NAICS reference331511 - Iron Foundries
Source row
331511Iron foundries
This page mirrors the source row from the structure CSV and the matching rows from the elements and crosswalk files.
Frequently asked questions
What does code 331511 cover?
Iron foundries: This Canadian industry comprises establishments primarily engaged in pouring molten pig iron or alloy irons, into moulds to manufacture castings.
Which level of the hierarchy is 331511?
It is a canadian industry page in the NAICS Canada 2026 hierarchy.
What is the parent of 331511?
It rolls up to 33151 Ferrous metal foundries.
Should I stop at 331511 or go lower?
This page already points to the exact six-digit Canadian industry in the current site structure.
Are official inclusion notes attached to 331511?
No inclusion rows are attached to this page in the local elements file.
Are there exclusion notes for 331511?
No exclusion rows are attached to this page in the local elements file.
Does 331511 include illustrative examples?
Yes. 27 example row(s) are available for boundary checking.
What kinds of businesses often start from this page?
Examples in this branch include Wood products, Consumer goods, Food processing, Steel foundries.
Is there an ISIC mapping for 331511?
Yes. The page shows C2823* Manufacture of machinery for metallurgy.
Does this page show a US NAICS reference?
Yes. A same-code US reference is attached: Iron Foundries.
Why are both English and French titles shown?
NAICS Canada is bilingual, so the page keeps both language titles visible for comparison and lookup.
Where does the page text come from?
From the local StatCan structure file, elements file, ISIC crosswalk, and the bundled US 6-digit reference workbook.