C83600 Bronze Casting – Leaded Red Brass (85-5-5-5) Castings
Cable Glands India manufactures C83600 bronze castings, the leaded red brass alloy also known as 85-5-5-5 bronze or ounce metal, for valve bodies, pump housings, bearings, bushings, gears, and plumbing fittings. C83600 combines pressure tightness, machinability, and moderate strength with reliable corrosion resistance in water, steam, and general industrial service, and is supplied to ASTM B584 and equivalent international specifications. Valve manufacturers, pump OEMs, plumbing fitting suppliers, and EPC contractors source C83600 bronze castings from Cable Glands India because our foundry controls melt chemistry, degassing, and mould design to deliver sound castings ready for precision machining, in the specific casting process best suited to each component and order volume.
Price: US$ 15.90 per kilogram | Custom pricing available for bulk and OEM orders
Product Overview
What C83600 Bronze Is
C83600 is the UNS designation for a leaded tin bronze containing approximately 85 percent copper, 5 percent tin, 5 percent lead, and 5 percent zinc, commonly referred to as 85-5-5-5 bronze or ounce metal. The composition gives a balance of pressure tightness, bearing performance, and machinability that has made it a standard reference alloy for valves, fittings, and general bronze hardware across water, steam, and industrial fluid handling systems.
C83600 Bronze Sand Casting
Sand casting is the most widely used method for C83600 components, suited to valve bodies, pump casings, and low to medium production volumes where pattern cost must remain proportionate to order quantity. Green sand and dry sand moulds are used depending on component size, surface finish requirement, and dimensional tolerance, with risering and gating designed to minimise shrinkage porosity in pressure-retaining sections.
C83600 Bronze Investment Casting
Investment casting is offered for smaller C83600 components requiring closer as-cast tolerance, thinner sections, or intricate geometry such as small valve trim, connector bodies, and decorative or precision hardware, reducing machining allowance and material waste compared with sand casting.
C83600 Green Sand Casting
Green sand casting using clay-bonded moulding sand is applied to medium volume C83600 components where reusable pattern equipment and faster mould turnaround support competitive per-piece pricing without compromising the dimensional control needed for subsequent machining.
C83600 Centrifugal Casting
Centrifugal casting produces cylindrical C83600 blanks such as bushings, bearing sleeves, and valve body preforms with directional solidification from the outside inward, giving a dense, low-porosity structure well suited to bearing and bushing applications subject to continuous rotating or sliding load.
C83600 Permanent Mold Casting
Permanent mold casting is used for higher volume C83600 components where a reusable metal mould improves dimensional repeatability, surface finish, and cycle time compared with sand casting, and is applied to fittings, connector bodies, and gear blanks produced in recurring production runs.
C83600 Resin Sand Shell Molding / Casting
Resin sand shell moulding is offered for C83600 components requiring improved surface finish and dimensional accuracy over conventional sand casting, using a resin-bonded shell mould that reduces machining stock while remaining cost effective for medium production volumes.
Typical Products Cast in C83600 Bronze
Cable Glands India casts C83600 bronze into valve bodies and bonnets, pump casings and impellers, bushings and bearing sleeves, worm gears and worm wheels, flanges and pipe fittings, water meter and fire hydrant components, marine hardware, electrical connector blanks, and general industrial bronze hardware machined to customer drawings from the as-cast blank.
Key Features
- C83600 / 85-5-5-5 leaded red brass composition per ASTM B584
- Sand casting, investment casting, green sand casting, centrifugal casting, permanent mold casting, and resin sand shell casting available
- Good pressure tightness for valve and pump body applications
- Reliable machinability for threading, boring, and turning operations
- Corrosion resistance in fresh water, steam, and general industrial atmospheres
- Custom pattern and tooling development in-house
- CNC machining available on the same castings for finished components
- Batch-wise chemical composition and mechanical test certificates
Alloy Composition Control
Melt chemistry is verified by spectrometer analysis before pouring to confirm copper, tin, lead, and zinc content falls within the C83600 specification window, ensuring consistent mechanical properties, pressure tightness, and machinability are maintained across production batches and repeat orders.
Pressure Tightness for Valve and Pump Bodies
Because C83600 castings frequently form pressure-retaining valve bodies and pump housings, foundry practice focuses on controlling gas porosity and shrinkage through degassing, controlled pouring temperature, and gating design, so that machined bores and flange faces meet pressure test requirements.
Machinability and Post-Cast Processing
The leaded structure of C83600 gives good chip formation and surface finish during turning, boring, drilling, and threading, allowing valve seats, flange faces, and threaded connections to be machined to drawing tolerance directly from the as-cast blank without excessive tool wear.
Bearing and Bushing Performance
The free lead phase distributed through the C83600 matrix provides a degree of self-lubrication and embeddability for foreign particles, supporting its use in bushings, bearing sleeves, and wear plates operating under moderate load and sliding contact.
Casting Process Selection by Component
Cable Glands India selects sand casting, investment casting, green sand casting, centrifugal casting, permanent mold casting, or resin sand shell casting for each C83600 order based on component geometry, wall thickness, production volume, tolerance requirement, and target unit cost, so customers receive the most economical process for their specification.
Technical Specifications
| Parameter | Typical Range / Value |
|---|---|
| Alloy designation | UNS C83600 / ASTM B584 (85-5-5-5) |
| Tensile strength | 180 to 240 MPa (sand cast) |
| Yield strength | 90 to 120 MPa |
| Elongation | 15 percent to 30 percent |
| Hardness | 55 to 65 HB |
| Density | Approximately 8.83 g/cm3 |
| Casting methods | Sand, investment, green sand, centrifugal, permanent mold, resin sand shell |
| Maximum working temperature | Approximately 260 degrees C (application dependent) |
| Typical casting weight range | 0.05 kg to 150 kg (larger on request) |
Raw Material Grades
| Grade | Alloy Type | Notes |
|---|---|---|
| C83600 | Leaded red brass / ounce metal | General purpose valve and fitting bronze |
| C83800 | Leaded yellow brass | Higher zinc, lower copper alternative |
| C84400 | Leaded semi-red brass | Improved machinability, moderate strength |
| C90300 | Tin bronze | Higher strength, good wear resistance |
International Equivalent Standards
| Country / Standard Body | Equivalent Reference |
|---|---|
| USA – ASTM / UNS | ASTM B584 C83600 |
| UK – BS | BS 1400 LG2 (close equivalent) |
| Germany – DIN | DIN 1705 CuSn5ZnPb / Rg5 |
| Europe – EN | EN 1982 CC491K |
| India – IS | IS 318 Grade LTB2 |
| Japan – JIS | JIS H5120 CAC406 |
Product Types and Variants
| Casting Type | Description | Typical Use |
|---|---|---|
| Sand cast blanks | Larger components, low to medium volume | Valve bodies, pump casings |
| Investment cast blanks | Close tolerance, intricate geometry | Small valve trim, connector bodies |
| Green sand cast blanks | Medium volume, reusable pattern | Fittings, gear blanks |
| Centrifugal cast bushings | Directionally solidified cylindrical blank | Bearing bushes, valve preforms |
| Permanent mold cast blanks | Higher volume, repeatable dimensions | Fittings, connector bodies |
| Resin sand shell cast blanks | Improved surface finish and accuracy | Medium volume precision components |
| Finished machined components | Fully machined from cast blank | Ready-to-install valves, fittings |
Applications in Industry
Valve and Pump Manufacturing
C83600 bronze castings form valve bodies, bonnets, and pump casings for water, steam, and general industrial fluid handling systems where pressure tightness and machinability are required together.
Plumbing and Water Fittings
Water meter bodies, fire hydrant components, and general plumbing fittings are cast in C83600 for its corrosion resistance in potable and raw water service and its compatibility with standard machining and threading operations.
Bearings, Bushings and Gears
Bushings, bearing sleeves, worm gears, and wear plates are cast in C83600 where moderate load capacity, self-lubricating lead phase, and good machinability are required.
Marine and General Industrial Hardware
Marine fittings, electrical connector blanks, and general industrial bronze hardware are cast in C83600 for corrosion resistance and mechanical reliability in demanding service environments.
Manufacturing Process
Production begins with melt preparation in induction furnaces, where copper, tin, lead, and zinc are charged and alloyed to the C83600 specification, verified by spectrometer analysis before pouring. Depending on component size, tolerance, and volume, castings are produced by sand casting, investment casting, green sand casting, centrifugal casting, permanent mold casting, or resin sand shell casting, then fettled to remove gates, risers, and flash. Castings intended for pressure service are visually and, where specified, radiographically or hydrostatically inspected before proceeding to CNC machining, where flange faces, bores, threads, and sealing surfaces are finished to drawing tolerance. Finished components are cleaned, dimensionally inspected, and packed for dispatch with accompanying material and test certification.
Quality Standards and Certifications
| Standard / Certification | Scope |
|---|---|
| ISO 9001 | Quality management system certification |
| ASTM B584 | Reference specification for copper alloy sand castings |
| EN 1982 | Reference specification for copper alloy ingots and castings |
| IS 318 | Reference specification for leaded tin bronze ingots and castings |
| RoHS | Restriction of hazardous substances compliance on request |
Why Choose Cable Glands India
- In-house melting, casting, and CNC machining for full process control
- Spectrometer verified alloy composition on every melt batch
- Sand, investment, green sand, centrifugal, permanent mold, and resin sand shell casting under one roof
- In-house pattern and tooling development for new component designs
- Pressure testing and material certification on request
- Competitive per-kilogram pricing with volume and OEM discounts
Frequently Asked Questions
Q1: What is C83600 bronze?
C83600 is a leaded red brass, also called 85-5-5-5 bronze or ounce metal, composed of approximately 85 percent copper, 5 percent tin, 5 percent lead, and 5 percent zinc, used for pressure-tight castings such as valve bodies and pump housings.
Q2: Is C83600 the same as gunmetal or LG2?
C83600 is closely related to gunmetal and LG2 bronze, sharing a similar copper-tin-lead-zinc composition window, and the two are often treated as commercially interchangeable for many applications.
Q3: What casting methods do you offer for C83600?
We offer sand casting, investment casting, green sand casting, centrifugal casting, permanent mold casting, and resin sand shell casting, selected according to component size, tolerance, and order volume.
Q4: Can C83600 castings be used for potable water fittings?
Yes, C83600 is widely specified for water meter bodies, valves, and plumbing fittings due to its corrosion resistance in fresh and potable water service.
Q5: Can you supply finished machined components, not just raw castings?
Yes, our foundry and CNC machining operations work together to supply fully finished, ready-to-install components from the same C83600 casting.
Q6: What casting weight range can you produce?
Standard capability covers castings from approximately 0.05 kg up to 150 kg, with larger components available on request.
Q7: Do you provide material and pressure test certificates?
Yes, batch-wise chemical composition certificates are standard, and pressure or hydrostatic test certification is available on request for pressure-retaining components.
Q8: What is the price of C83600 bronze casting?
Indicative pricing is US$ 15.90 per kilogram, with final pricing depending on component geometry, casting process, machining requirements, and order quantity.
Q9: Do you export C83600 bronze castings internationally?
Yes, Cable Glands India exports C83600 bronze castings and machined components worldwide, with documentation support for customs and OEM approval processes.
International Equivalent Terms
| Language | Equivalent Terms |
|---|---|
| Spanish | Fundicion de bronce C83600, Fundicion de bronce rojo con plomo |
| Russian | Lite iz bronzy C83600, Svintsovaya krasnaya bronza |
| French | Fonte de bronze C83600, Fonte de bronze rouge au plomb |
| Portuguese | Fundicao de bronze C83600, Fundicao de bronze vermelho chumbado |
| Italian | Fusione di bronzo C83600, Fusione di bronzo rosso al piombo |
Linked Parts and Related Terms
C83600 Bronze Casting, 85-5-5-5 Bronze, Ounce Metal Casting, Leaded Red Brass Casting, Valve Body Casting, Pump Casing Casting, Bronze Bushing Casting, Sand Casting, Investment Casting, Centrifugal Casting, Permanent Mold Casting.
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Get a Quote – C83600 Bronze Casting
Ready to source C83600 bronze castings for valves, pumps, bushings, or custom bronze components? Our foundry team can recommend the correct casting process for your application.
Price: US$ 15.90 per kilogram | Custom pricing available for bulk and OEM orders
Email: sales@cableglandsindia.com
Phone / WhatsApp: +91-22-43449300
Website: www.cableglandsindia.com
Share your drawing, required quantities, and preferred delivery timeline, and we will respond with a detailed quotation within one business day.