NAICS 331512 - Steel Investment Foundries RFPs, RFIs, RFQs, Sources Sought and Government Contracting Opportunities

Browse open Steel Investment Foundries (NAICS 331512) RFPs, RFIs, RFQs, and Sources Sought on Bidscope. We aggregate active government contracting opportunities from federal, state, and local agencies, refreshed daily so you never miss a bid. Click any opportunity below for full solicitation details, due dates, and contacts.

About Steel Investment Foundries (NAICS 331512)

This U.S. industry comprises establishments primarily engaged in manufacturing steel investment castings. Investment molds are formed by covering a wax shape with a refractory slurry. After the refractory slurry hardens, the wax is melted, leaving a seamless mold. Investment molds provide highly detailed, consistent castings. Establishments in this industry purchase steel made in other establishments.

StatusTitleBuyerDue Date
OpenMetal Shop Supplies for Southern Columbia Area

Southern Columbia Area is seeking bids for metal shop supplies including layout fluid, abrasives, drill bits, welding consumables, foundry materials, and various metal stock for the 2019-2020 school year.

Columbia County, PA, USAInvitation for/to Bid (IFB/ITB)
Southern Columbia Area School District-
OpenMetal Fabrication and Welding Services

Jefferson County is seeking a contractor to provide on-site and off-site welding and metal fabrication services, including MIG, TIG, and arc welding, bending, forming, rolling, polishing, and custom metal cutting for county departments.

195 Arsenal Street, Watertown, NY, USAInvitation for/to Bid (IFB/ITB)
Jefferson County > Purchasing Department9/23/2026
OpenCut Steel and Various Metals Price Agreement

Dallas College is seeking suppliers to provide cut steel and various metal products on an as-needed basis for instructional programs and minor building repairs across all Dallas College locations under a five-year price agreement.

Dallas County, TX, USAInvitation for/to Bid (IFB/ITB)
Dallas College9/16/2026
OpenWelding Department Metal Supplies

The Southern Alberta Institute of Technology is seeking vendors to supply various shapes and sizes of mild steel, aluminum, and stainless steel for its Welding Department under a 35-month contract.

Southern Alberta Institute of Technology (SAIT), Calgary, AB, CanadaRequest for Proposal (RFP)
University of Alberta9/23/2026
OpenSheet Metal Supply

The Defense Logistics Agency is seeking quotes from small businesses for 9 sheets of metal under NSN 9535-002-777-429, delivered to DLA Distribution Warner Robins within 167 days after order.

Warner Robins, GA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT MRO SVC I)9/14/2026
OpenFerrous and Nonferrous Metal Sales

The City of Laval is seeking bids for the sale of ferrous and nonferrous metals under a 60-month contract.

3131 BOUL. Saint-Martin O, Laval, QC, CanadaRequest for Proposal (RFP)
Laval10/8/2026
OpenHot-Rolled Steel Flat Bar

Clinton Community College is seeking sealed bids for 1,440 hot-rolled steel flat bars in three specified sizes, including delivery and unloading to its manufacturing institute.

53 Clinton Point Drive, Plattsburgh, NY, USARequest for Proposal (RFP)Woman-Owned Business
Clinton Community College9/25/2026
OpenSheet Metal Supply

The Defense Logistics Agency is requesting a quote for 283 sheets of metal under NSN 9535-00-232-6878, delivered to DLA Distribution Puget Sound.

McChord AFB, WA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [METALS])9/14/2026
OpenUNICOR Steel Materials Supply

Federal Prison Industries, operating as UNICOR, is seeking proposals for multiple lots of angle, bar, coil, beam, plate, round, sheet, spring, and tube steel delivered to facilities in El Reno, Oklahoma, and Milan, Michigan.

4205 Highway 66 West, El Reno, OK, USARequest for Proposal (RFP)
United States of America > JUSTICE, DEPARTMENT OF > FEDERAL PRISON INDUSTRIES, INC9/22/2026
OpenComplete Steel Bridge Supply

Hydro-Quebec is requesting proposals for the supply of a complete steel bridge in the Mauricie region, with an indicative total value including options of CAD 10 million to CAD 20 million and an estimated 10-month contract period.

Mauricie, QC, CanadaRequest for Proposal (RFP)
Hydro-Quebec9/28/2026
OpenLock and Dam 21 Bolted Tainter Gate Fabrication

The U.S. Army Corps of Engineers is seeking fabrication and delivery of new bolted Tainter gates for Mississippi River Basin Lock and Dam 21 in Quincy, Illinois.

Quincy, IL, USARequest for Proposal (RFP)
United States of America > DEPT OF DEFENSE > DEPT OF THE ARMY > W07V ENDIST ROCK ISLAND (KO CONTRACTING DIVISION)9/17/2026
OpenMetal Fabrication Services and Materials

Tennessee Technological University is seeking a contractor for metal fabrication services, raw metal products, and skilled and unskilled labor under a five-year contract.

Tennessee Technological University, Cookeville, TN, USARequest for Quote/Qualifications (RFQ)
Tennessee Technological University > Purchasing and Contracts > Facilities9/29/2026
OpenStructural Steel for Energy Recovery Complex Partition

The City of Quebec is seeking structural steel, required bolts and anchors, site delivery, and sealed fabrication drawings for a partition structure at the Energy Recovery Complex.

Quebec, QC, CanadaRequest for Proposal (RFP)
Quebec City9/17/2026
OpenSouthmoore High School Athletic Plaza Metal Work

OMNI Construction, LLC is seeking bids for metal work for the 2026 Athletic Plaza at Southmoore High School in Moore, Oklahoma.

2901 South Santa Fe Avenue, Moore, OK, USARequest for Proposal (RFP)
OMNI Construction, LLC9/30/2026
OpenCustom ARMCO Pure-Iron Parts

Oak Ridge National Laboratory is seeking custom-machined ARMCO pure-iron parts with electropolishing, heat treatment, nickel plating, and powder coating for its Neutron Technologies Division.

Oak Ridge, TN, USARequest for Proposal (RFP)
United States of America > ENERGY, DEPARTMENT OF > ORNL UT-BATTELLE LLC-DOE CONTRACTOR (Oak Ridge National Laboratory)9/21/2026
OpenMetal Tube Assemblies

The U.S. Navy is soliciting offers for metal tube assemblies under solicitation N0038326QMB25.

Philadelphia, PA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEPT OF THE NAVY > NAVSUP WEAPON SYSTEMS SUPPORT (PHILADELPHIA)9/18/2026
OpenDC Blocks

The U.S. Department of Energy, through Fermilab, is seeking proposals for DC blocks manufactured by a machine shop in Batavia, Illinois.

Fermilab, Batavia, IL, USARequest for Proposal (RFP)
United States of America > ENERGY, DEPARTMENT OF > FERMILAB - DOE CONTRACTOR9/25/2026
OpenMetal Plates

The Defense Logistics Agency is requesting a quote for two metal plates under NSN 9535-00-508-8345, with electronic submission required.

Philadelphia, PA, USARequest for Quote/Qualifications (RFQ)Woman-Owned Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT MRO SVC I)9/14/2026
OpenTransmission Tubular Steel Structures

The City of Norwich, Connecticut is seeking a contractor to fabricate and deliver transmission tubular steel structures for the L-617 project, with the RFP package released only after a signed NDA.

Norwich, CT, USARequest for Proposal (RFP)
City of Norwich9/17/2026
OpenSheet Metal Supply

The Defense Logistics Agency is requesting quotes for 550 sheets of metal under NSN 9535-00-232-6880, delivered to DLA Distribution within 43 days after award.

Philadelphia, PA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT MRO SVC I)9/21/2026
OpenMetal Plates

The Defense Logistics Agency is requesting quotes for 145 metal plates across three line items for delivery to DLA Distribution.

Philadelphia, PA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [METALS])9/21/2026
OpenOperations Division Machining Services and Materials BPA

The U.S. Army Corps of Engineers, New Orleans District, is seeking a small business to provide machining, repair, fabrication, transportation, and related materials under a five-year blanket purchase agreement.

7400 Leake Avenue, New Orleans, LA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEPT OF THE ARMY > W07V ENDIST NEW ORLEANS (KO CONTRACTING DIVISION)9/17/2026
OpenAluminum for License Plate Manufacturing

Virginia Correctional Enterprises is seeking competitive sealed bids for aluminum used to manufacture vehicle and motorcycle license plates under a small-business set-aside.

3600 Woods Way, State Farm, VA, USAInvitation for/to Bid (IFB/ITB)Small Business
Commonwealth of Kentucky > Department of Corrections9/16/2026
OpenVarious Steel Parts for Solid Waste Facilities

The City of Tampa is seeking bids for assorted steel plates, sheets, bars, pipes, tubing, channels, and related metal parts for container and waste-to-energy facility repairs, with delivery to two Tampa facilities.

Tampa, FL, USAInvitation for/to Bid (IFB/ITB)Small Business
City of Tampa > Solid Waste & Environmental Program Management10/2/2026
OpenXZ-85 Steel Sheet Pilings

St. Charles Parish is seeking sealed electronic bids for XZ-85 steel sheet pilings or an approved equal.

St. Charles Parish, LA, USAInvitation for/to Bid (IFB/ITB)
St. Charles Parish9/29/2026
Frequently Asked Questions
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What is NAICS code 331512 (Steel Investment Foundries)?+

This U.S. industry comprises establishments primarily engaged in manufacturing steel investment castings. Investment molds are formed by covering a wax shape with a refractory slurry. After the refractory slurry hardens, the wax is melted, leaving a seamless mold. Investment molds provide highly detailed, consistent castings.…

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