Copper Alloy Casting Services

We provide custom copper alloy casting services for industrial and commercial components, with support for sand casting, gravity casting, CNC machining, and surface finishing. Alloy selection and the casting process are reviewed according to your drawings, application requirements, and production volume.

  • Part size and weight: reviewed according to alloy, geometry, and casting process
  • Alloy selection: based on customer specifications and application requirements
  • Secondary machining: CNC machining for holes, threads, and sealing surfaces
  • Surface finishing: polishing, blasting, plating, and coating, subject to alloy and application
  • Dimensional tolerances: confirmed during drawing review
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Brass flanged bearing housing casting with mounting base and central bore

MinHe Copper Alloy Casting Solutions

MinHe supports custom copper alloy casting projects from drawing review and alloy selection through casting, machining, and surface finishing. Working within our ISO 9001 quality management system, we review part geometry, dimensional tolerances, and inspection requirements before production. For components such as valve bodies, fittings, housings, and brackets, the alloy and casting process are selected according to operating conditions, production volume, and customer specifications.

3D transparent view of a custom metal casting component

Common Copper Casting Alloys

Alloy Grade Key Properties Typical Applications Example Parts
C83600 Widely used cast brass alloy with good machinability, pressure tightness, and corrosion resistance. Suitable for general-purpose cast components that require stable casting performance and reliable machining behavior. Valve and pump components, pipe fittings, plumbing hardware, and general industrial cast parts. Valve Body, Pump Housing, Pipe Fitting, Connector Body
C85700 High-strength yellow brass casting alloy offering good corrosion resistance, machinability, and a stable surface finish. Suitable for parts that require both structural integrity and decorative appearance. Industrial fittings, architectural hardware, mechanical housings, and brass cast parts used in general engineering applications. Housing, Mounting Bracket, Decorative Fitting, Structural Part
C85800 Manganese brass casting alloy with higher strength and good wear resistance compared with standard cast brass grades. Suitable for more demanding service environments requiring improved durability. Heavy-duty valve components, marine fittings, industrial machinery parts, and castings exposed to repeated loading or wear. Valve Seat, Heavy-duty Fitting, Wear-resistant Housing, Machine Part
C86200 High-strength manganese bronze alloy with excellent mechanical strength, good corrosion resistance, and very good machinability. Often selected for demanding structural and bearing-related components. Bearings, bushings, worm gears, wear plates, and industrial cast components operating under load. Bushing, Bearing Housing, Worm Gear Blank, Wear Plate
C86300 High-strength bronze alloy with excellent wear resistance and good load-carrying capacity. Suitable for cast parts requiring strength, abrasion resistance, and stable service performance. Bushings, heavy-duty bearings, support blocks, and industrial machinery parts subject to sliding or contact wear. Heavy-duty Bushing, Slide Block, Bearing Sleeve, Support Plate
C87500 Lead-free cast brass alloy with good corrosion resistance, pressure tightness, and machinability. Well suited to potable water and environmentally regulated applications. Plumbing valves, drinking water system components, sanitary fittings, and lead-free industrial cast parts. Lead-free Valve Body, Water Fitting, Pump Component, Connector Housing
C87600 Lead-free silicon brass alloy with good casting performance, corrosion resistance, and suitability for pressure-containing parts. Commonly used where compliance and clean-service compatibility matter. Water system fittings, plumbing hardware, and brass cast parts for regulated commercial and industrial applications. Plumbing Connector, Valve Housing, Water Pump Part, Fitting Body
Custom Brass Alloy Brass alloy selection can be adjusted based on strength, corrosion resistance, machinability, appearance, and end-use environment. Suitable for custom casting projects with specific functional or regulatory requirements. Custom industrial castings, special fluid-handling components, architectural hardware, and project-specific brass parts. Custom Housing, Special Valve Body, Decorative Casting, Precision Fitting

Casting Processes for Copper Alloy Components

Molten brass being injected into a die casting mold cavity during the brass die casting process

Die Casting

Die casting enables the production of thin-wall and complex geometries under high pressure, delivering exceptional dimensional accuracy and consistency.
It is ideal for high-volume manufacturing of precision metal components with strict tolerance requirements.

Gravity Casting

Gravity casting uses reusable metal molds and gravity-fed pouring to achieve improved density and stable dimensions.
This process suits medium- to large-sized structural parts, offering reduced internal defects and lower tooling costs than high-pressure die casting.

Brass sand casting pouring molten metal into sand mold

Sand Casting

Sand casting forms parts by pouring molten metal into expendable sand molds, allowing greater freedom in shape and section thickness.
It is suitable for prototypes, low-volume production, and large structural components where cost efficiency and flexible design are priorities.

Copper Alloy Applications by Industry

Building Hardware

Copper alloy castings are used for door handles, hinges, locks, railing fittings, decorative trims, and other building hardware. Brass and other suitable copper alloys are selected according to appearance, corrosion resistance, machining, and finishing requirements for indoor and outdoor applications.

Electronics

Copper alloy castings are used for connector bodies, terminal components, and other electrical hardware. Alloy selection depends on the required electrical conductivity, mechanical strength, corrosion resistance, and surface finish. Machining can provide the contact features, threads, and mounting surfaces specified in the drawing.

Fluid & Industrial Components

Copper alloy castings are used for pump bodies, valve bodies, fittings, bushings, and other industrial components. Alloy selection depends on the operating medium, pressure, temperature, and wear requirements. Machining provides the sealing surfaces, bores, and threaded connections required for assembly.

Power & Energy Connectors

Copper alloy castings can be used for selected connectors, terminal bodies, and connection hardware in power and energy equipment. The alloy is selected according to electrical conductivity, mechanical strength, corrosion resistance, and operating temperature. Machining and surface finishing are specified to meet connection and assembly requirements.

Consumer & Premium Goods

Copper alloy castings are used for decorative hardware, faucet bodies, handles, and other consumer product components. Brass and other suitable copper alloys offer a range of appearance and finishing options. Material selection considers surface quality, durability, corrosion resistance, and the intended use of the finished part.

What Is Copper Alloy Casting?

Copper alloy casting is a manufacturing process in which molten copper-based alloys, such as brass and bronze, are poured into a mold to form parts with the required shape. It is commonly used to produce valve bodies, pump housings, fittings, bushings, and other industrial components. The alloy and casting process are selected according to the part’s corrosion resistance, wear resistance, strength, conductivity, and machining requirements.

Brass casting mount base with flanged support structure

Copper Alloy Casting Products

Brass casting bearing housing with mounting base and circular support

Brass Housing

Brass casting mounting bracket with single-hole upright support

Brass Bracket

Brass casting pump body with threaded ports and mounting base

Brass Pump Body

Brass casting valve body with four threaded ports for fluid control

Brass Valve Body

Brass gear housing casting with flanged front opening and threaded side ports

Brass Gearbox Case

Brass structural bracket with circular opening and reinforced mounting base

Brass Structural Part

Quality Assurance for Copper Alloy Castings

Quality control covers multiple key stages, from material verification and drawing review to final inspection before shipment, helping improve dimensional consistency, surface quality, and production stability.

Material Verification

We verify incoming material grades and specifications to support stable casting quality from the start.

Drawing and Process Review

We review part drawings and process requirements before production to identify key control points early.

In-Process Control

Key production steps are monitored during casting to help reduce variation and improve consistency.

Dimensional Inspection

Critical dimensions and functional features are checked to support fit, assembly, and application needs.

Surface and Visual Inspection

Visible surfaces and finishing conditions are inspected before delivery to improve overall part consistency.

Final Inspection Before Shipment

A final inspection is carried out before shipment to confirm order requirements and delivery consistency.

Custom copper alloy castings manufactured to your drawings, with machining and finishing to meet your application requirements.

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FAQ – Frequently Asked Questions

Alloy selection depends on strength, corrosion resistance, wear resistance, electrical conductivity, machinability, and operating conditions. Brass, bronze, and other copper alloys offer different properties. Share your drawings, material specifications, and application requirements so we can review suitable casting grades for your project.
Yes. We review copper alloy casting designs before production, including wall thickness, draft angles, ribs, machining allowances, and critical features. Gating, feeding, and potential shrinkage or porosity risks are evaluated according to the selected alloy and casting process.
Minimum wall thickness depends on the alloy, casting process, part size, geometry, and metal flow distance. There is no single minimum that applies to every copper alloy casting. We review thin sections and transitions during drawing evaluation and confirm a practical wall thickness before tooling development.
Achievable tolerances depend on the casting process, alloy, part dimensions, and feature geometry. As-cast tolerances and machining requirements are reviewed separately. Critical bores, threads, sealing surfaces, and mounting features can be machined where required. Dimensional tolerances and surface finish requirements are confirmed during drawing review.
To prepare a quotation, please provide:
  • 2D and/or 3D drawings, such as PDF, STEP, or IGES files
  • Required alloy grade and applicable material standard
  • Batch quantity and estimated annual demand
  • Critical dimensions, tolerances, and machining requirements
  • Surface finish, inspection, and testing requirements
If the alloy has not been selected, include the application and operating conditions so we can review suitable options.
Yes. We review prototype and small-batch copper alloy casting projects alongside repeat production orders. The suitable process and minimum order quantity depend on the alloy, part complexity, tooling requirements, and inspection needs. Send your drawings and required quantity so we can evaluate a practical production route.

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