C87600 Silicon Bronze Castings for Valve and Engineering Components
Brass Copper Parts offers C87600 Silicon Bronze Castings made to drawing for valve bodies, stems, industrial fittings and custom hardware. C87600 is a low-zinc copper-silicon casting alloy; grade selection should consider the casting section, loading and environment as well as the required machining.
Indicative price: US$ 17.80/kg. Custom supply is quoted against the agreed drawing and inspection requirements.
C87600 Chemical Composition
| Element | Mass percentage |
|---|---|
| Copper | 88.0% minimum |
| Zinc | 4.0–7.0% |
| Silicon | 3.5–5.5% |
| Lead | 0.09% maximum |
| Iron | 0.20% maximum |
| Manganese | 0.25% maximum |
CDA sand-cast reference data lists minimum tensile strength 60 ksi, yield strength at 0.5% extension 30 ksi, and elongation 16%. These are condition-specific reference values. Require the applicable specification and test plan rather than assuming all cast sections achieve identical properties.
The CDA lists ASTM B584 for general sand castings and ASTM B763/B763M for valve applications. Specify the applicable edition. CDA C87600 alloy reference.
C87600 International Equivalent Grades and Specifications
UNS C87600 / CDA 876 identifies low-zinc silicon brass, commonly marketed as silicon bronze. International purchasing documents should retain C87600 and the agreed specification, such as the applicable ASTM sand-casting standard, rather than relying on a general bronze description.
No exact EN, DIN, BS, JIS or GB counterpart is verified here. In particular, the higher-zinc CuZn16Si4-C (CC761S) family should not be substituted for C87600 without engineering approval. Compare copper, zinc, silicon and impurity limits as well as mechanical requirements for the selected process. Send any national-grade callout for a documented equivalence review. Reference: CDA/UNS cast-alloy composition tables.
Types of C87600 Silicon Bronze Casting
Silicon Bronze C87600 Investment Casting
Investment casting can be considered for C87600 fittings with complex outer profiles, small bosses and features that are costly to machine from solid stock. Expendable patterns allow detailed shapes, but internal cavities still need practical core and cleaning arrangements. Define datum faces, thread allowances and inspection access before selecting this route.
Silicon Bronze C87600 Green Sand Casting
Green sand casting provides a pattern-based route for C87600 housings, valve parts and larger fittings. Cores establish internal passages, and their support must maintain the specified minimum walls. Include machining stock on sealing faces and locate feeding features around heavy sections. Pressure testing, where required, belongs in the purchase specification.
Silicon Bronze C87600 Permanent Mold Casting
Permanent mold casting may be assessed for repeat C87600 parts with relatively straightforward release geometry. Reusable metal tooling calls for controlled mold temperatures, coatings and filling practice. Consider annual demand, core requirements and ejection marks when comparing it with sand casting. Approve samples against the specified process condition and finished dimensions.
Silicon Bronze C87600 Shell Molding – Resin Sand Casting
Shell molding and resin-bonded sand casting offer alternative mold systems for C87600 engineering components. A thin resin-coated shell uses heated tooling; a chemically bonded mold can accommodate a different range of sizes and cores. Review binder gas, passage cleaning and core alignment, then agree the casting surface and machined tolerances separately.
C87600 Silicon Bronze Die Casting
C87600 can be considered for pressure die-casting enquiries using equipment suitable for copper alloys. Tooling feasibility depends on section thickness, projected area, cores and production quantity. Specify the allowed porosity, trimming condition and machining depth, particularly where machining could expose internal defects. Electrical fittings also need application-specific contact and mechanical acceptance requirements.
Process reference: CDA copper casting alloy guide. The quotation confirms the available manufacturing route and inspection scope.
Designing a C87600 Casting
For valve bodies and housings, identify cored passages and minimum wall sections on the drawing. Consider parting-line position and access for cleaning internal cavities. Machined sealing faces need adequate stock and a datum scheme that supports repeatable inspection.
- Use gradual section changes and generous internal radii where the design allows.
- Call out thread standard, fit class and gauging requirements.
- Define pressure testing separately from dimensional inspection.
- Agree the casting route, surface finish and allowed repair procedures before manufacture.
Electrical and Industrial Applications
Electrical fittings must be designed around actual conductivity, contact resistance and temperature-rise requirements. C87600 should not be treated as a substitute for high-conductivity copper. For industrial components, provide the corrosion exposure, mechanical loads and mating materials for an application-specific review.
Drawing Review, Inspection and Quotation
Send your drawing or 3D model, alloy specification, quantity, finished part weight and delivery destination to Brass Copper Parts. Mark critical bores, threads, sealing faces, datum locations and surface finishes. Tooling cost and lead time are confirmed after review.
Specify heat traceability, chemical analysis, dimensional reporting and any mechanical or non-destructive testing in the enquiry. Sampling and acceptance criteria should be agreed before production. Certification, pressure ratings and service suitability depend on the specified component and inspection plan.
Price and Ordering Questions
How is the price calculated?
The indicative price is US$ 17.80/kg. The quotation defines billable weight and any tooling, machining, testing, packaging or freight charges.
Can castings be supplied machined?
Request the required bores, threads and finished faces on your drawing. Machining allowance and tolerances are agreed for each feature and casting route.
Planning Interfaces on C87600 Engineering Parts
Valve components and industrial fittings often depend on the relationship between several features. Identify the datum used to locate bores, threads and sealing faces, then mark the dimensions that control assembly. Include the mating-part information needed to understand fit and access for machining.
For cored housings, provide sectional views or a model that shows internal geometry. Indicate areas where wall thickness is critical and where the design allows adjustment. Any proposed geometry change should be approved and captured in the drawing before tooling is finalized.
Electrical Fittings and Application Review
When enquiring about an electrical fitting, describe the current path, contact surfaces, mating conductor and operating environment. Include the required electrical performance and mechanical clamping requirements. This gives the review a practical basis beyond the general alloy designation.
For all applications, define how the finished part will be accepted. Material records establish the agreed alloy chemistry, while dimensional and functional checks address the component itself. Identify the records needed for incoming inspection and the marking required to associate parts with their batch.
More Questions and Answers About C87600 Castings
How should I identify critical fits on a C87600 drawing?
Mark the functional datums, mating dimensions and tolerance requirements. State which features need machining and how they will be inspected.
Can C87600 be ordered for an electrical connector?
Submit the connector design and required electrical and mechanical performance for review. The alloy designation alone does not establish current-carrying capacity or contact performance.
What is needed to review a threaded fitting?
Specify the thread standard, size, fit and gauging requirements. Include sealing details and the relationship between the thread and other machined features.
How do I define internal wall requirements?
Provide sections or a model showing the cavity and mark the minimum acceptable walls. Identify the areas that control strength, sealing or machining allowance.
Can the enquiry include first-article inspection?
Yes. State the dimensions and documents needed for the first sample review, together with the approval stage required before the remaining quantity is released.
Which delivery details affect the quotation?
Include destination, required quantity and target delivery date. Specify packing needs for machined surfaces and any material or inspection documents required with shipment.
Request a Quote for C87600 Castings
Ready to discuss your component? Send your drawing or model, material specification, quantity, required finish and delivery destination to Brass Copper Parts. Include your target delivery date and inspection requirements so the quotation can define tooling, machining and testing scope.
Email Your Drawing for a Quote | Request a Casting Review | Call +91-22-43449300
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