NAICS 331110: Iron and Steel Mills and Ferroalloy Manufacturing
Iron and Steel Mills and Ferroalloy Manufacturing is NAICS code 331110. A business is small under it with 1,500 employees or fewer. 4 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- 1,500 employees or fewer
- Open contracts now
- 4
- Federal spending, FY2025
- $83.1 million
- Share won by small businesses
- 36%
Open federal contracts for iron and steel mills and ferroalloy manufacturing
- STEEL BAR
Due in 20 hr leftOct 7, 2026
- Metal for Overhead Crane System
Due in 9 daysOct 16, 2026
- PLATE,METAL
Due in 10 daysOct 17, 2026
- Basic Ordering Agreement for Steel
✦ The Army (ACC-Rock Island) wants to sign no-cost, multi-award Basic Ordering Agreements (BOAs) with small businesses that can supply raw steel and metal stock and components to…
Due in 14 daysOct 21, 2026
What NAICS 331110 covers
The Census Bureau's NAICS index lists these kinds of work under 331110:
- Armor plate made in iron and steel mills
- Axles, rolled or forged, made in iron and steel mills
- Balls, steel, made in iron and steel mills
- Bars, concrete reinforcing (rebar) made in steel mills
- Billets, steel, made in iron and steel mills
- Blackplate made in iron and steel mills
- Blast furnaces
- Blooms, steel, made in iron and steel mills
- Car wheels, rolled steel, made in iron and steel mills
- Coke oven products made in iron and steel mills
- Concrete reinforcing bar (rebar) made in iron and steel mills
- Direct reduction of iron ore
- Electrometallurgical ferroalloy manufacturing
- Electrometallurgical steel manufacturing
The index lists 91 entries for this code in all.
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 331110
To count as a small business for a contract assigned NAICS 331110, your business must have 1,500 employees or fewer. Employees are averaged over the last 24 months.
From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.
Who buys iron and steel mills and ferroalloy manufacturing
Agencies that awarded the most under NAICS 331110 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Defense Logistics Agency | $302.9 million |
| Department of the Army | $16.1 million |
| Federal Prison Industries / Unicor | $2.4 million |
| Department of the Navy | $1.1 million |
| Department of State | $620,829 |
| Bureau of Land Management | $460,218 |
| National Institute of Standards and Technology | $399,141 |
| National Aeronautics and Space Administration | $327,965 |
Open notices right now come from Dept of Defense (4).
Set-asides on open 331110 contracts
- Total small business set-aside: 3
- Women-owned set-aside: 1
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Federal spending under 331110 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $22.8 million |
| FY2025 | $83.1 million |
| FY2026 | $219.1 million |
| FY2027 (so far) | $0 |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Frequently asked questions
What is NAICS code 331110?
331110 is the 2022 NAICS code for Iron and Steel Mills and Ferroalloy Manufacturing. The Census Bureau's index lists work such as armor plate made in iron and steel mills, axles, rolled or forged, made in iron and steel mills, balls, steel, made in iron and steel mills under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 331110?
1,500 employees or fewer. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.
Are there government contracts for iron and steel mills and ferroalloy manufacturing?
Yes. 4 federal contract opportunities under NAICS 331110 are open on SAM.gov right now. Agencies obligated about $83.1 million under this code in fiscal year 2025, according to USAspending.gov.
How do I add NAICS code 331110 to my SAM.gov registration?
Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.
Keep going
- Search other NAICS codes by keyword or company
- How to choose NAICS codes for government contracts
- NAICS codes with the most open federal contracts
FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.