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NAICS Code· 331110

NAICS 331110: Iron and Steel Mills and Ferroalloy Manufacturing

This industry comprises establishments primarily engaged in one or more of the following: (1) direct reduction of iron ore; (2) manufacturing pig iron in molten or solid form; (3) converting pig iron into steel; (4) making steel; (5) making steel and manufacturing shapes (e.g., bar, plate, rod, sheet, strip, wire); (6) making steel and forming pipe and tube; and (7) manufacturing electrometallurgical ferroalloys. Ferroalloys add critical elements, such as silicon and manganese for carbon steel and chromium, vanadium, tungsten, titanium, and molybdenum for low- and high-alloy metals. Ferroalloys include iron-rich alloys and more pure forms of elements added during the steel manufacturing process that alter or improve the characteristics of the metal. Cross-References. Establishments primarily engaged in--Show more

NAICS 331110 – Iron and Steel Mills and Ferroalloy Manufacturing encompasses the primary production of crude steel through blast furnace, electric arc furnace, or other smelting processes, as well as the manufacturing of ferroalloys used to impart specific metallurgical properties to steel products. This sector supports critical infrastructure, defense systems, and industrial equipment by supplying raw steel billets, slabs, and alloyed ingots essential for structural components, armor plating, heavy machinery, and ordnance.

117
Active Contracts
$34.7M
Total Obligations (12mo)
724
Awarded Contracts (12mo)
75
Contractors Awarded (12mo)
4
Median Bidders per Award
-49.3%
YoY Growth
Dotted
NAICS 331110 FAQ

Frequently Asked Questions

NAICS code 331110 covers Iron and Steel Mills and Ferroalloy Manufacturing. This industry comprises establishments primarily engaged in one or more of the following: (1) direct reduction of iron ore; (2) manufacturing pig iron in molten or solid form; (3) converting pig iron into steel; (4) making steel; (5) making steel and manufacturing shapes (e.g., bar, plate, rod, sheet, strip, wire); (6) making steel and forming pipe and tube; and (7) manufacturing electrometallurgical ferroalloys. Ferroalloys add critical elements, such as silicon and manganese for carbon steel and chromium, vanadium, tungsten, titanium, and molybdenum for low- and high-alloy metals. Ferroalloys include iron-rich alloys and more pure forms of elements added during the steel manufacturing process that alter or improve the characteristics of the metal. Cross-References. Establishments primarily engaged in--

Recently Posted in Iron and Steel Mills and Ferroalloy Manufacturing

NAICS: 331110
New
Federal
Bent Tube & Fittings
Solicitation # W519TC26QA165
Solicitation W519TC26QA165 is a firm fixed price request for quote issued by the Army Contracting Command - Rock Island for the procurement of metallic bent tubes and fittings to support the Rock Island Arsenal, Joint Manufacturing and Technology Center. The requirement is conducted under FAR Part 12 for commercial items and is open to Department of Defense and authorized U.S. DOD contractors. The procurement includes specific technical requirements for steel materials per MIL-T-3520, with a nominal diameter of 0.125 inches, a nominal wall thickness of 0.028 inches, and a maximum operating pressure of 5,000 PSI. Technical specifications are governed by drawings 11619659, 11619660, 11619662, and 11619664. The award will be granted to the lowest evaluated responsible offeror whose quote conforms to the RFQ requirements. Key deliverables are split across three CLINs with delivery dates ranging from February 10, 2027, to December 8, 2027. All shipments are FOB Destination to Rock Island, Illinois, with transportation costs borne by the contractor. Mandatory submission requirements include a Certified Test Report and a Certificate of Conformance with every delivery. Invoicing must be processed electronically through the Wide Area Workflow system. The solicitation incorporates various federal and defense clauses, including those regarding small business set-asides, Buy American preferences, and cybersecurity compliance under NIST SP 800-171.
W6QK Acc-Ri

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NAICS: 331110
New
Federal
Metal for Overhead Crane System
Solicitation # FA8126Q0065
Solicitation FA812626Q0065 is a one-time, firm-fixed-price procurement issued by the Air Force Sustainment Center for the acquisition of ASTM standard structural steel and metal components to install a new overhead crane system at Tinker AFB, Oklahoma. This requirement is a 100% Small Business Set-Aside under NAICS code 331110. The scope of work includes the delivery of galvanized double-strut channel sticks, angle iron sticks, and C15 x 33.9 steel. All materials must meet specific ASTM A653 G90 and ASTM A36 standards. A critical requirement for this contract is the submission of official, verifiable manufacturer test certifications for every individual piece quoted, specifically requiring itemized heat-number-matched test reports; generic bulk batch certifications are strictly prohibited and will result in disqualification. Award will be determined based on the Lowest Price Technically Acceptable (LPTA) method, with technical acceptability evaluated on a pass/fail basis. All items must be delivered to Tinker AFB on or before March 31, 2027, with strict adherence to military packaging and marking standards, including MIL-STD-130 and MIL-STD-129. Invoicing must be processed electronically via the Wide Area WorkFlow system. Vendors must be registered in the System for Award Management and are cautioned that firearms are prohibited on base and an offload ramp may not be available upon delivery.
FA8126 Afsc Pzimb

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