Bronze Casting and Bronze Parts

Bronze Casting Services

We specialize in manufacturing high-quality bronze castings using advanced casting technologies. Our state-of-the-art facilities produce precision components across all major bronze alloys, delivering exceptional mechanical properties, corrosion resistance, and dimensional accuracy for critical applications in marine, electrical, industrial, and heavy machinery sectors.

Sand Casting

Traditional and versatile method ideal for large bronze components, prototypes, and complex geometries. Suitable for low to medium production volumes with excellent design flexibility.

Investment Casting

Precision lost-wax process delivering superior surface finish and tight tolerances. Perfect for intricate bronze parts requiring minimal machining and exceptional detail reproduction.

Centrifugal Casting

High-density, defect-free bronze bushings, bearings, and cylindrical components. Enhanced mechanical properties through centrifugal force during solidification.

Shell Molding

Excellent surface finish and dimensional accuracy for medium-volume bronze production. Ideal for valve bodies, fittings, and marine hardware.

Gravity Die Casting

Permanent mold casting for high-volume bronze components with consistent quality. Superior mechanical properties and reduced porosity for critical applications.

Bronze Alloy Grades & Standards

We manufacture castings in all standard bronze alloy grades, meeting international specifications for diverse industrial applications.

Aluminum Bronze

Superior strength, excellent corrosion resistance, and high wear resistance. Ideal for marine propellers, pump components, and heavy-duty gears.

Standards: UNS C95200, C95400, C95500, C95800
SAE J461, J462 | ASTM B148, B150
BS 1400 AB1, AB2 | DIN 1705, 1714

Manganese Bronze

High-strength bronze with excellent machinability and wear resistance. Perfect for gears, worm wheels, valve stems, and structural components.

Standards: UNS C86200, C86300, C86400, C86500
SAE J461 | ASTM B584, B147
BS 1400 HTB1, HTB3 | DIN 1709

Nickel Bronze

Outstanding corrosion resistance in seawater and industrial environments. Exceptional strength for marine hardware and chemical processing equipment.

Standards: UNS C96200, C96400, C96900
ASTM B148, B763 | SAE J461
BS 1400 NB1, NB2 | DIN 1716

Leaded Bronze (Red Brass)

Excellent machinability with good strength and corrosion resistance. Widely used for valves, fittings, plumbing fixtures, and electrical components.

Standards: UNS C83600, C84400, C92200
ASTM B584, B61, B62 | SAE J461
BS 1400 LB2, LB4 | DIN 1705

Tin Bronze (Phosphor Bronze)

Superior spring properties, fatigue resistance, and electrical conductivity. Ideal for bearings, bushings, electrical contacts, and springs.

Standards: UNS C90300, C90500, C91100, C52100
ASTM B584, B139 | SAE J461
BS 1400 PB1, PB2, PB4 | DIN 1705

Silicon Bronze

Excellent corrosion resistance and high strength. Perfect for marine fasteners, pump shafts, and architectural applications.

Standards: UNS C87300, C87500, C87800
ASTM B584, B98 | SAE J463
BS 1400 SCB3, SCB6 | DIN 1716

Precision Machining Services

Our bronze castings undergo precision CNC machining to achieve exact specifications and superior surface finishes.

Machining Capabilities

CNC Turning & Milling: Multi-axis precision machining for complex bronze geometries
Threading & Tapping: NPT, BSP, metric, and custom thread profiles
Drilling & Boring: Precision holes, counter-bores, and internal features
Grinding & Honing: Mirror finishes and tight tolerance cylinder bores
Surface Treatments: Polishing, passivation, and protective coatings
Quality Assurance: CMM inspection, material testing, pressure testing

Typical Finished Products

Marine propellers and rudder fittings with precision hydrodynamic profiles
Valve bodies, seats, and stems with leak-proof sealing surfaces
Electrical connectors and terminals with precise contact surfaces
Pump impellers and housings with balanced rotating assemblies
Bearing housings and bushings with controlled bore tolerances
Instrumentation fittings with calibrated internal passages
Gear blanks machined to AGMA standards

Bronze Product Range

Bronze Hotline Clamps

Engineered for electrical transmission and distribution systems, our bronze hotline clamps provide superior conductivity and corrosion resistance. Manufactured from high-conductivity aluminum bronze or silicon bronze alloys (UNS C95200, C87300), these clamps feature precision-machined contact surfaces ensuring reliable electrical connections under high-voltage conditions. Available in various configurations for different conductor sizes, with investment cast bodies for intricate geometries and CNC-machined contact points for optimal electrical performance. Ideal for live-line maintenance operations and permanent installations in overhead power lines.

Bronze Marine Fittings

Premium marine-grade bronze fittings designed for harsh saltwater environments. Our comprehensive range includes deck hardware, hull fittings, through-hulls, and deck plates manufactured from corrosion-resistant manganese bronze (C86300) and nickel-aluminum bronze (C95800). Sand casting or investment casting processes deliver robust components with excellent seawater resistance and structural integrity. All fittings undergo rigorous pressure testing and are machined to ensure leak-proof performance. Applications include boat building, ship repair, offshore platforms, and port infrastructure where reliability and longevity are critical.

Bronze Tees and Elbows

High-quality bronze pipe fittings for plumbing, HVAC, marine, and industrial fluid systems. Manufactured using shell molding and gravity die casting for consistent wall thickness and smooth internal surfaces, these tees and elbows are available in leaded bronze (C83600) for superior machinability or tin bronze (C90300) for enhanced corrosion resistance. Threaded, socket, and flanged configurations available in sizes from ½” to 6″ NPT/BSP. Precision-machined threads ensure leak-free connections, while the inherent antimicrobial properties of bronze make these fittings ideal for potable water systems, marine plumbing, and chemical processing applications.

Bronze Hose Couplings

Durable bronze quick-connect couplings and threaded hose adapters for industrial, agricultural, fire-fighting, and marine applications. Cast in manganese bronze (C86500) for high-strength requirements or leaded bronze (C84400) for general-purpose use, our couplings feature precision-machined sealing surfaces and locking mechanisms. Investment casting delivers intricate cam-lock, storz, and instantaneous coupling designs with minimal machining required. Available with NPT, BSP, GHT, or custom thread forms, these couplings provide reliable, leak-free connections for water transfer, fuel handling, chemical distribution, and pneumatic systems. Optional Buna-N or Viton gaskets for chemical compatibility.

Bronze Transformer Spade Terminals

High-conductivity spade terminals for power transformers and electrical substations. Manufactured from aluminum bronze (C95400) or silicon bronze (C65100) for optimal electrical and thermal conductivity, these terminals are investment cast for complex geometries and precision-machined for exact dimensional control. Features include wide contact surfaces for reduced resistance, drilled holes for bolt connections, and optional tin or silver plating for enhanced conductivity. Designed to handle high current loads with minimal temperature rise, these terminals meet IEEE and IEC standards for transformer connections. Available in various amperage ratings and conductor sizes for distribution and power transformers.

Bronze Transformer Connectors

Robust electrical connectors for transformer bushing connections and internal winding terminations. Cast in high-conductivity aluminum bronze alloys (UNS C95200, C95400) with precision-machined contact surfaces ensuring minimal resistance and hotspot-free operation. Our transformer connectors include lug-type, compression, and bolted designs manufactured through investment casting for complex shapes and centrifugal casting for cylindrical components. Heat-treated for enhanced strength and conductivity, these connectors undergo electrical testing to verify contact resistance. Applications include power transformers, distribution transformers, instrument transformers, and industrial electrical equipment requiring reliable high-current connections.

Bronze Vise Connectors

Heavy-duty bronze connectors for grounding and bonding applications in electrical distribution systems. Manufactured from manganese bronze (C86200) for superior strength and excellent machinability, these vise-style connectors provide secure mechanical and electrical connections to ground rods, cables, and conductors. Sand cast bodies with CNC-machined contact surfaces and threaded compression mechanisms ensure reliable clamping force and low-resistance electrical paths. Corrosion-resistant finish suitable for direct burial and outdoor installations. Compliant with NEC and local electrical codes for grounding electrode connections, lightning protection systems, and bonding applications in commercial and industrial facilities.

Bronze Strainers

Precision bronze strainers and filters for fluid protection in plumbing, marine, industrial, and fire protection systems. Cast using shell molding or investment casting in leaded bronze (C83600) or nickel bronze (C96400), our strainers feature accurately machined screen seats and drainage ports. Available in Y-type, basket, and duplex configurations with threaded, flanged, or grooved end connections. Screen options include perforated bronze, woven wire mesh (20 to 400 mesh), and wedge-wire elements. Ideal for protecting pumps, valves, and instrumentation from particulate contamination in water systems, fuel lines, hydraulic circuits, and chemical processing applications. Pressure ratings up to 300 PSI.

Bronze Gears

High-performance bronze gears engineered for marine drives, industrial machinery, and heavy equipment. Manufactured from manganese bronze (C86300) for high-strength applications or phosphor bronze (C90700) for superior wear resistance and low friction. Casting methods include centrifugal casting for gear blanks and investment casting for complex gear forms. Precision CNC gear cutting and grinding deliver AGMA quality tolerances for spur, helical, bevel, and worm gears. Heat treatment optimizes hardness and ductility. Bronze’s inherent anti-galling properties and corrosion resistance make these gears ideal for marine propulsion systems, elevator drives, sugar mill machinery, and applications requiring operation in corrosive or underwater environments.

Aluminum Bronze Stirrup Bail Clamps

Specialized aluminum bronze clamps for securing cables, pipes, and equipment in marine and offshore applications. Cast from high-strength aluminum bronze alloys (C95400, C95500) using investment casting for smooth surfaces and accurate dimensions. The stirrup bail design provides secure clamping with adjustable tensioning, while the inherent corrosion resistance of aluminum bronze ensures long service life in saltwater and industrial environments. CNC-machined mounting holes and threaded components guarantee precise fit and reliable fastening. Applications include shipbuilding, offshore oil platforms, subsea equipment mounting, and industrial pipe support systems where strength, corrosion resistance, and non-magnetic properties are essential. Available with optional rubber or neoprene liners for vibration isolation.

Partner With Bronze Casting Experts

From prototype to production, we deliver precision bronze castings and machined components that exceed expectations. Contact our engineering team to discuss your specific requirements.

Quality Standards & Certifications

Our bronze casting facility maintains rigorous quality standards and holds certifications including:

ISO 9001:2015 Quality Management System
ASTM Certified Material Testing Laboratory
Lloyd’s Register Type Approval (Marine Components)
ABS (American Bureau of Shipping) Certified Supplier
Military Specification Compliance (MIL-B-16166)
Pressure Equipment Directive (PED) Compliance
REACH and RoHS Compliant Materials

USA Sales: We are a trusted global supplier of precision metal parts for the electrical industry, proudly partnering with leading USA companies to power innovation and infrastructure. From Fortune 500 manufacturers to innovative tech giants, our high-quality components meet rigorous U.S. standards for performance, durability, and safety. By combining advanced manufacturing with reliable delivery and dedicated stateside support, we help American businesses streamline supply chains, reduce costs, and drive the future of electrical systems, renewable energy, and smart grid technology. Choose a supplier engineered for the demands of the U.S. market. We can also offer DDP pricing within USA to every possible state.

Premium Bronze Castings & Bronze Parts, Bronze Machined Parts