NAICS 33111 - Iron and Steel Mills and Ferroalloy Manufacturing
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Related NAICS Codes for NAICS 33111
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| NAICS Code | Industry Title |
|---|---|
| 331110 | Iron and Steel Mills and Ferroalloy Manufacturing |
What is NAICS 33111
NAICS code 33111 covers the Iron and Steel Mills and Ferroalloy Manufacturing sector, which includes establishments engaged in smelting iron ore, pig iron, and steel, as well as producing ferroalloys used to enhance steel properties. Businesses in this sector operate large-scale facilities such as blast furnaces, electric arc furnaces, and basic oxygen furnaces to manufacture raw steel and related ferroalloy products. These products serve as foundational materials for a wide array of industries including construction, transportation, defense, and infrastructure development. Government agencies contract with firms in this sector to secure reliable sources of high-quality steel and ferroalloys for critical infrastructure projects, military equipment, and national security applications. The durability, strength, and versatility of iron and steel products make them essential for public works and defense procurement.
Breakdown for NAICS 33111
- Encompasses establishments producing raw iron, steel, and ferroalloy materials.
- Includes operations using blast furnaces, electric arc furnaces, and basic oxygen furnaces.
- Covers production of ferroalloys used to enhance steel properties.
- Subject to stringent environmental and quality standards.
- Typical businesses range from large integrated mills to specialized ferroalloy manufacturers.
Included Activities for NAICS 33111
- Smelting iron ore to produce pig iron and raw iron products.
- Manufacturing steel through various furnace technologies.
- Producing ferroalloys such as ferromanganese and ferrochrome.
- Melting and refining steel to meet specific grade requirements.
- Supplying steel slabs, billets, and coils for downstream manufacturing.
- Conducting quality testing and certification for government specifications.
- Logistics and delivery of steel products to government project sites.
Business Types for NAICS 33111
- Integrated steel mills
- Mini-mill steel producers
- Ferroalloy manufacturers
- Steel fabrication and processing companies
- Raw material suppliers specializing in iron ore and alloys
Government Buyers for NAICS 33111
Federal government agencies such as the Department of Defense (DoD), Department of Transportation (DOT), and General Services Administration (GSA) are primary purchasers of iron and steel mill products. These agencies require steel materials for the construction and maintenance of military bases, transportation infrastructure like bridges and highways, and federal buildings. Additionally, agencies overseeing public safety and emergency services procure steel components for equipment manufacturing and upgrades. The strategic importance of domestic iron and steel production also leads to contracts aimed at sustaining national supply chains and ensuring material availability during times of crisis or increased demand.
Contract Types & Procurement for NAICS 33111
Contracts in this NAICS sector typically include firm-fixed-price and indefinite delivery/indefinite quantity (IDIQ) contracts, reflecting the need for both predictable supply and flexible procurement. Procurement methods range from competitive sealed bidding to negotiated contracts, depending on the urgency and complexity of the order. Contract values can vary widely—from smaller supply contracts for specific steel grades to multimillion-dollar agreements for large-scale infrastructure projects or military manufacturing programs. Long-term supply agreements are common to maintain consistent material flow and manage price volatility in the steel market.
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