Our Specialty
Ironbound Castings Bronze & Copper Alloy Castings
Ironbound Castings has poured bronze and copper-base alloys for generations, serving the U.S. Navy, commercial shipbuilders, and industrial customers who demand the highest quality castings. Our bronze alloy capability spans tin bronze, leaded tin bronze, manganese bronze, aluminum bronze, silicon bronze, and nickel aluminum bronze — all poured from our in-house induction furnaces.
Every bronze casting is produced against a written alloy chemistry specification, and full material certifications with test bars are furnished for each heat. Our pattern shop, molding floor, and machine shop are all under one roof — giving you a true single-source supplier from drawing review through finished machined casting.
Alloys Poured
C83600, C84400, C90300, C90500, C92200, C93200, C93700, C86300, C95400, C95500, C87600 and others on request
Key Features
Why Choose Ironbound Castings
Bronze and copper-base alloys are our core specialty. Our foundrymen bring decades of metallurgical experience to every heat.
Full Bronze Alloy Range
Tin bronze, leaded tin bronze, manganese bronze, aluminum bronze, silicon bronze, and nickel aluminum bronze — all poured in-house from our induction furnaces.
Heat-Specific Certifications
Full material certifications with heat-specific test bars furnished for every production alloy, meeting ASTM and MIL-SPEC documentation requirements.
Navy & MIL-SPEC Qualified
Decades of supplying the U.S. Navy and defense supply chain with bronze castings to MIL-B-21230 and applicable NAVSEA specifications.
Single-Source Convenience
Pattern making, casting, heat treatment, machining, and inspection all under one roof — one PO, one point of contact, no handoffs.
Alloy Selection
Bronze Alloy Grades
Select the bronze grade matched to your application — from general-purpose tin bronze to Navy-qualified nickel aluminum bronze.
Tin Bronze & Leaded Tin Bronze
C83600, C84400, C90300, C90500, C92200, C92300, C93200, C93700
Manganese Bronze
C86200, C86300, C86500
Specifications
Technical Specifications
Downloads & Resources
Bronze Alloy Data Sheet
Chemistry, mechanical properties, and casting specs for all bronze grades poured at Ironbound.
Material Certifications
Sample heat certification and test bar documentation for ASTM B584 bronze castings.
Standards Compliance
ASTM, MIL-SPEC, and class society standards applicable to Ironbound bronze castings.
Contact the Foundry Team
Submit your drawing, alloy specification, and quantity below. We will review your design and respond with a competitive quote and lead time.
Ironbound Castings
85 Foundry Street
Newark, NJ 07105
Phone(973) 589-6613
Emailsales@ironboundcastings.com
HoursMonday – Friday, 7:00 AM – 4:00 PM EST
What to Include in Your Inquiry
- Alloy specification or ASTM grade
- Drawing or sketch (PDF, DWG, DXF)
- Quantity — prototype or production volume
- Required certifications (ASTM, MIL-SPEC, class society)
- Required delivery date or lead time