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CC212A Silicon Brass Casting
CC212A Silicon Brass Casting | BS EN 1982 | C87800 Equivalent | DIN CuZn15Si4
CC212A Silicon Brass casting, designated under BS EN 1982 as the silicon brass casting alloy, is equivalent to UNS C87800 (USA) and DIN CuZn15Si4 (Germany). Electrical Accessories India manufactures CC212A silicon brass castings using sand casting, investment casting, centrifugal casting, green sand casting, and permanent mold casting for European, UK, and international customers requiring BS EN 1982 certification.
CC212A contains 3.5-4.5% silicon and 12-16% zinc in a copper matrix, delivering 520 MPa minimum tensile strength – the highest in the silicon bronze/silicon brass casting family. The zinc content provides improved casting fluidity, higher strength, and better machinability (40-50%) compared to true silicon bronzes (CC211A/C87600), while silicon ensures dezincification resistance and good corrosion performance. CC212A is widely used in European marine hardware, architectural hardware, plumbing fittings, and general engineering castings where maximum strength and good machinability are the primary requirements.
CC212A Chemical Composition and Mechanical Properties (BS EN 1982)
| Property | CC212A (BS EN 1982) Value | Standard |
|---|---|---|
| EN Designation | CC212A | BS EN 1982 |
| US Equivalent | C87800 (UNS C87800) | ASTM/CDA |
| DIN Equivalent | CuZn15Si4 | DIN 1705 |
| Silicon (Si) | 3.5-4.5% | BS EN 1982 |
| Zinc (Zn) | 12-16% | BS EN 1982 |
| Copper (Cu) | Remainder (approx 80%) | BS EN 1982 |
| Tensile Strength | 520 MPa min | BS EN 1982 |
| 0.2% Yield Strength | 230 MPa min | BS EN 1982 |
| Elongation | 12% min | BS EN 1982 |
| Hardness | 120-160 HB | – |
| Density | 8.2 g/cm3 | – |
| Electrical Conductivity | 6-8% IACS | – |
| Max Service Temperature | 180 deg C | – |
| Machinability Rating | 40-50% | vs free-cutting brass = 100% |
| Weldability | Good (TIG with ERCuSi-A) | AWS A5.7 |
CC212A Silicon Brass Casting Processes
CC212A Silicon Brass Sand Casting
CC212A Silicon Brass Sand Casting (BS EN 1982) uses furan resin-bonded sand moulds for versatile production. CC212A’s excellent casting fluidity (due to zinc content) fills complex geometries and thin sections reliably. Component weights 0.05-200+ kg. Tolerances CT7-CT9. Surface finish Ra 6.3-12.5 um. EN 10204 3.1 mill certificates supplied confirming BS EN 1982 compliance. Lead times 1-2 weeks from existing patterns.
CC212A Silicon Brass Centrifugal Casting
CC212A Silicon Brass Centrifugal Casting produces dense cylindrical components with excellent machinability for downstream CNC operations. CC212A centrifugal castings offer 520 MPa base strength with bore machinability rating of 40-50% – significantly better than true silicon bronze. Tolerances CT5-CT6. Suitable for valve seats, bearing housings, and cylindrical fittings requiring the highest silicon bronze family strength.
CC212A Silicon Brass Investment Casting
CC212A Silicon Brass Investment Casting (lost-wax process) achieves CT4-CT5 tolerances and Ra 1.6-3.2 um surface finish to BS EN 1982. CC212A’s superior fluidity from zinc content makes it excellent for thin-wall investment castings and complex-geometry components. Suitable for precision architectural hardware, plumbing components, and marine fittings requiring BS EN 1982 CC212A specification.
CC212A Silicon Brass Green Sand Casting
CC212A Silicon Brass Green Sand Casting provides economical production for standard hardware shapes. Clay-bonded green sand moulds with rapid preparation. Tolerances CT8-CT10. Most economical for high-volume standard CC212A hardware. EN 10204 2.2 certificates standard; 3.1 on request.
CC212A Silicon Brass Permanent Mold Casting
CC212A Silicon Brass Permanent Mold Casting uses reusable steel dies for high-volume, consistent production. CC212A’s excellent fluidity and zinc content give it outstanding die-filling characteristics, making permanent mould the most efficient casting method for standard fittings and hardware. Tolerances CT5-CT7. Suitable for 500-50,000 piece production runs. EN 10204 3.1 certificates supplied.
Cross-Reference: CC212A to Other Standards
| Standard | Designation | Country/Region |
|---|---|---|
| BS EN 1982 | CC212A | UK / Europe |
| UNS (ASTM/CDA) | C87800 | USA |
| DIN 1705 | CuZn15Si4 | Germany |
Applications of CC212A Silicon Brass Castings
- Marine Hardware: High-strength deck hardware, cleats, fairleads, fittings specified to BS EN 1982 CC212A for European and UK marine applications
- Plumbing and Valves: Valve bodies, plumbing fittings with silicon-enhanced dezincification resistance for non-aggressive water service
- Architectural Hardware: Structural door and window hardware where maximum strength (520 MPa) is required
- General Engineering: High-strength pump components, hydraulic fittings, valve bodies for general engineering service
- European and UK Market: Components specified to BS EN 1982 CC212A for direct European/UK procurement
Quality Standards
- BS EN 1982 – Copper and Copper Alloys Ingots and Castings (CC212A)
- DIN 1705 – Copper-Silicon-Zinc Casting Alloys (CuZn15Si4)
- AWS A5.7 ERCuSi-A – Silicon Bronze Welding Wire
- ISO 9001:2015 Quality Management System
- EN 10204 3.1 Mill Certificates
- RoHS 3 and REACH compliant
Request a Quote for CC212A Silicon Brass Castings
Electrical Accessories India supplies CC212A silicon brass castings to BS EN 1982 for UK, European, and international customers. Quotations within 24 hours. Provide drawing (PDF/DXF/STEP), grade (CC212A / C87800 / DIN CuZn15Si4), quantity, casting process, and delivery destination. EN 10204 3.1 mill certificates included. Indicative pricing: USD 13.90 per kg CIF destination port.