Ironbound Castings for Marine & Shipbuilding
Manganese bronze and aluminum bronze castings for commercial propellers, propeller hubs, rudder hardware, and hull fittings — ABS and class society certified.
Bronze Castings for Commercial & Naval Marine
The marine and shipbuilding industry has relied on bronze castings for propellers, rudder hardware, and hull fittings for generations — and for good reason. Manganese bronze and aluminum bronze deliver the combination of high strength, seawater corrosion resistance, and long service life that no other material class can match.
Ironbound Castings pours the full range of marine bronze alloys — C86300 manganese bronze, C95400 and C95500 aluminum bronze, and standard tin bronze for hull fittings — with in-house machining and ABS class society survey capability.
Solutions for Marine & Shipbuilding
Castings & Capabilities
Precision sand castings and in-house services designed for the specific alloy and quality requirements of marine & shipbuilding applications.
Commercial Propellers
Fixed-pitch propeller castings in C86300 manganese bronze up to 6,000 lbs, with full machining, blade profiling, and dynamic balance verification.
Learn MorePropeller Hubs & Shafts
Manganese bronze and aluminum bronze propeller hub castings, shaft fittings, and keyway components machined to class society dimensional requirements.
Learn More
Rudder Hardware
Bronze pintle and gudgeon castings, rudder stock fittings, and stern tube components for commercial and naval vessels.
Learn More
Hull Fittings & Sea Valves
Tin bronze through-hull fittings, sea valves, sea chests, and strainer bodies for below-waterline vessel applications.
Learn MoreFull-Service Marine Bronze Casting Capability
Ironbound Castings provides commercial shipbuilders and naval contractors with a complete marine bronze casting service — pattern making, casting, heat treatment, machining, inspection, and class society documentation — all under one roof. Our induction furnace capacity supports single-heat propeller pours up to 6,000 lbs for the largest commercial vessels.
We work directly with ABS, DNV-GL, and other class society surveyors for at-build inspection milestones, and deliver complete class documentation packages with every marine casting order.
Why Choose Ironbound Castings for Marine & Shipbuilding
Propeller Specialists
Decades of experience pouring and machining manganese and aluminum bronze propellers for commercial and naval vessels
ABS & Class Society Certified
ABS, DNV-GL, and other class society survey support with complete class documentation packages
6,000 lb Pour Capacity
Induction furnace capacity supports single-heat pours for the largest commercial propeller castings
In-House Machining & Balance
Blade profiling, hub boring, keyway cutting, and dynamic balance all performed at Ironbound
Certifications & Specifications
- ASTM B584 manganese and aluminum bronze certification
- ABS, DNV-GL, and other class society survey support
- Dynamic balance verification for propeller castings
- In-house blade profiling and hub machining
- Material certifications and class documentation packages
- Induction furnace capacity up to 6,000 lbs per heat
Ironbound Castings delivers marine bronze castings to the highest class society standards — from first article prototype through long-term production.
Ready to Get Started?
Contact us today to discuss your marine & shipbuilding project requirements. Our engineering team is ready to develop a custom solution around your specifications.
Request a QuoteExplore Other Industries
MIL-SPEC bronze and nickel alloy castings for naval programs.
Stainless and nickel alloy castings for offshore and downstream service.
Bronze and aluminum castings for turbines, pumps, and heat exchangers.
Custom castings in any alloy for valves, housings, and machine components.
Our Quality
Ironbound Castings produces sand castings to ASTM, MIL-SPEC, ABS, DNV, and customer-specific standards. Every casting is accompanied by full material certifications, test bars, and dimensional inspection documentation.
Downloads & Resources
Marine Bronze Alloy Data Sheets
Chemistry and mechanical property data for manganese bronze, aluminum bronze, and tin bronze marine grades
ABS & Class Society Capabilities
Overview of Ironbound Castings class society survey and documentation capabilities
Request a Quote
Submit your propeller drawing, alloy specification, and quantity for a prompt marine casting quotation