Copper Sand Castings

Copper-Based Brass and Bronze Alloy Castings


Copper-based sand castings manufactured for industrial applications.

Copper Alloys We Cast

Riverside produces copper-based sand castings for industrial applications. These alloys are chosen for strength, corrosion resistance, and long service life.

We work with customers across industrial, utility, and infrastructure equipment markets.

These alloys include:

  • Leaded red brasses for improved machinability
  • Aluminum bronzes for higher strength and wear resistance
  • Corrosion-resistant bronze grades
  • Heavy-duty alloys for demanding load applications

Brass and Bronze Alloy Grades

  • C83300

  • C83400

  • C83600

  • C84400

  • C86300

  • C86500

  • C87200

  • C87300

  • C87600

  • C87610

  • C92200

  • C95400

  • C95600


If you require a specific copper alloy grade not listed above, our team can review your material specification and confirm availability.

  • Copper Alloy
  • Bronze Alloy
  • Aluminum Alloy
  • Zinc Alloy
  • Lead Alloy

Applications for Copper-Based Brass and Bronze Castings

Copper alloy sand castings are commonly used in:

  • Pump bodies and impellers
  • Valve bodies and fittings
  • Bearings and bushings
  • Marine hardware
  • Electrical and grounding components
  • Gear blanks
  • Industrial machinery components
  • OEM replacement parts

Copper and bronze alloys are selected for durability, corrosion resistance, and long service life in wet or harsh operating environments.

Why Sand Casting for Copper and Bronze Castings

Sand casting is particularly suited for copper-based alloys because it allows:

  • Complex part geometries

  • Medium to high production volumes

  • Custom tooling and pattern flexibility

  • Larger casting sizes

  • Pattern cost control compared to permanent mold and diecast processes


As an experienced non-ferrous foundry, Riverside manages mold preparation, pouring, cooling, and finishing with controlled production processes designed for repeatability.

Production Capabilities

Riverside supports copper-based brass and bronze sand castings through:

  • In-house pattern coordination
  • Medium and high-volume production runs
  • Machining coordination
  • Dimensional inspection
  • Ongoing repeat production scheduling

We work closely with engineers and purchasing teams to ensure alloy consistency and dimensional control across production cycles.

FAQ

Frequently Asked Questions About Copper Sand Castings

Bronze is primarily copper + tin; brass is copper + zinc.

Bronze has better corrosion resistance, strength & wear properties; Brass is easier to cast and machine.


Bronze is typically used for bearings, marine or high-wear applications. Brass is typically used for fittings and parts where machinability is a priority.

Fire Protection, Electrical, Automotive, Industrial Machinery, Construction, Infrastructure, Marine, Hardware, Plumbing.


Bronze ~1830–2100ºF (depending on alloy) Brass ~1650–1870ºF (depending on alloy)


Internal cavities, undercuts or features that cannot be drawn from a mold half require cores.

1–3º draft on pattern is typically required for ease of pattern removal from sand. Fillets reduce stress concentrations and improve metal flow in the mold.


Request a Quote for Copper, Brass, or Bronze Sand Castings

If you require copper or bronze sand castings for industrial production, contact Riverside Foundry to review your drawings, alloy requirements, and volume needs.


Request a Quote