About Ironbound Castings
Full-Service Foundry. Every Alloy. Every Step.
Ironbound Castings is a full-service foundry specializing in bronze, aluminum, stainless steel, and nickel alloy sand castings — with an in-house pattern shop, machining, and complete inspection capabilities under one roof.
Who We Are
A Foundry Built for Critical Applications
Ironbound Castings is a full-service foundry producing high-quality sand castings in bronze, aluminum, stainless steel, and nickel alloys. Our craftsmen utilize both green sand and no-bake molding to produce fine-finish castings with consistent tolerances across the full range of alloys we pour.
We operate a full-service pattern shop and offer complete machining and inspection capabilities in-house — meaning a customer can place one purchase order, provide a drawing, and receive a finished, inspected, certified casting without coordinating multiple vendors.
We supply Navy and defense prime contractors including General Dynamics Electric Boat, as well as commercial and industrial customers across oil and gas, power generation, marine, and industrial manufacturing. Every casting ships with certified material test reports and the documentation your quality system requires.
Alloys We Pour
Bronze Alloys
C83600 through C96400 — tin bronzes, leaded bronzes, aluminum bronzes, manganese bronzes, silicon bronzes, copper nickel
Aluminum Alloys
319, 355, A356, 713, 850
Stainless Steel
CA-15, CA-6NM, CF-8, CF-8M, CD-4MCu, A890-4A, CK3MCuN, and 18 additional grades
Nickel & Monel
CW12MW, M35-1, M35-2, M30-C, M35-B
Capabilities
Everything In-House
Green Sand Molding
High-volume green sand casting for production runs. Fast cycle times with consistent dimensional quality on bronze, aluminum, stainless, and nickel alloys.
No Bake Molding
Chemically bonded no-bake molds for fine-finish surfaces, complex geometries, and large castings. Harder mold surface yields better casting finish and tighter tolerances.
Core Making
Shell core, CO2, bench oil sand, and zircon core processes in-house. Cores for internal passages, ports, and complex cavity features produced on-site.
Pattern Shop
Full-service in-house pattern shop. New patterns from CAD or prints, pattern modifications, repairs, and prototype tooling — all produced on-site.
Machining
CNC turning, boring, and milling on-site. Castings delivered as-cast, rough machined, or fully machined to drawing on a single order.
Inspection & Testing
CMM and hand-tool dimensional inspection, RT, PT, MT, UT, and hydrostatic pressure testing in-house. Full documentation furnished with every shipment.
Equipment
Foundry Equipment & Capacity
- Induction furnaces up to 6,000 pounds per heat
- Floor molding up to 150 inches square
- Green sand molding line
- No-bake molding
- Shell core, CO2, bench oil sand, and zircon core making
- CNC turning, boring, and milling
- CMM dimensional inspection
- Radiographic, PT, MT, and UT testing in-house
- Hydrostatic pressure testing
Navy Partnership
General Dynamics Electric Boat
In February 2019, General Dynamics Electric Boat visited Ironbound Castings to give a presentation on quality standards and the importance of the castings we produce for the Navy submarine program.
We understand what Navy prime contractors require — material certifications, NAVSEA documentation packages, NDE records, hydrostatic test reports, and dimensional inspection — and we deliver it on every order.
Ready to Work With Us?
Send us your drawing and specifications. We will provide a prompt quote with pattern and per-piece pricing clearly broken out.