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DIN CuSi3Mn Silicon Bronze Casting
DIN CuSi3Mn Silicon Bronze Casting | DIN 1705 | C65500 Equivalent | CW116C
DIN CuSi3Mn Silicon Bronze casting (DIN 1705), the German DIN standard designation for High Silicon Bronze A, is equivalent to UNS C65500 (USA), BS EN 12163 CW116C (Europe), ISO CuSi3Mn1, and JIS C6561 (Japan). Electrical Accessories India manufactures DIN CuSi3Mn silicon bronze castings using sand casting, investment casting, centrifugal casting, green sand casting, and permanent mold casting for German, European, and international customers requiring DIN 1705 specification silicon bronze.
DIN CuSi3Mn contains 2.8-3.8% silicon and 0.5-1.3% manganese, delivering 490 MPa minimum tensile strength with excellent weldability, cryogenic capability (-200 to +200 deg C), and superior stress corrosion cracking resistance in ammonia and industrial atmospheres. The manganese addition provides grain refinement and enhanced strength compared to DIN CuSi3 (C87600).
DIN CuSi3Mn Chemical Composition and Properties
| Property | DIN CuSi3Mn Value | Standard |
|---|---|---|
| DIN Designation | CuSi3Mn | DIN 1705 |
| US Equivalent | C65500 (UNS C65500) | ASTM B96 |
| EN Equivalent | CW116C | BS EN 12163 |
| ISO Designation | CuSi3Mn1 | ISO |
| Silicon (Si) | 2.8-3.8% | DIN 1705 |
| Manganese (Mn) | 0.5-1.3% | DIN 1705 |
| Tensile Strength | 490 MPa min | DIN 1705 |
| 0.2% Yield Strength | 200 MPa min | DIN 1705 |
| Elongation | 15% min | DIN 1705 |
| Hardness | 100-150 HB | – |
| Density | 8.5 g/cm3 | – |
| Max Service Temperature | 200 deg C (cryogenic to -200 deg C) | – |
| Weldability | Excellent (TIG/MIG ERCuSi-A) | AWS A5.7 |
DIN CuSi3Mn Silicon Bronze Casting Processes
DIN CuSi3Mn Silicon Bronze Sand Casting
Sand casting of DIN CuSi3Mn silicon bronze using furan resin-bonded sand moulds. Components 0.05-200+ kg. Tolerances CT7-CT9. EN 10204 3.1 certificates confirming DIN 1705 CuSi3Mn composition. Lead times 1-2 weeks.
DIN CuSi3Mn Silicon Bronze Centrifugal Casting
Centrifugal casting of DIN CuSi3Mn produces dense cylindrical components with manganese-refined grain structure. Tolerances CT5-CT6. Suitable for German marine, offshore, and chemical plant cylindrical components specified to DIN 1705.
DIN CuSi3Mn Silicon Bronze Investment Casting
Investment casting (lost-wax) of DIN CuSi3Mn achieves CT4-CT5 tolerances and Ra 1.6-3.2 um surface finish. EN 10204 3.1 certificates confirming DIN CuSi3Mn composition supplied.
DIN CuSi3Mn Silicon Bronze Green Sand Casting
Green sand casting of DIN CuSi3Mn for rapid, economical production of standard hardware. Tolerances CT8-CT10. Most economical option for volume DIN CuSi3Mn hardware.
DIN CuSi3Mn Silicon Bronze Permanent Mold Casting
Permanent mold casting of DIN CuSi3Mn for high-volume, dimensionally consistent production. Tolerances CT5-CT7. Suitable for 500-50,000 piece runs in DIN CuSi3Mn specification.
DIN CuSi3Mn Cross-Reference
| Standard | Designation | Country/Region |
|---|---|---|
| DIN 1705 | CuSi3Mn | Germany |
| UNS (ASTM) | C65500 | USA |
| BS EN 12163 | CW116C | UK / Europe |
| ISO | CuSi3Mn1 | International |
| JIS H5120 | C6561 | Japan |
| IS 318 | Gr.SiB3 | India |
Applications of DIN CuSi3Mn Silicon Bronze Castings
- German Chemical Industry: Structural hardware for ammonia, acid, and corrosive process areas. EN 10204 3.1 certificates to DIN standards.
- Marine and Offshore: Deck hardware, structural fittings, and fasteners for German shipbuilding and offshore industry
- Cryogenic Engineering: Valve bodies and fittings for LNG, liquid nitrogen, and liquid oxygen service in German industry
- German OEM Supply: Components supplied to German engineering firms with DIN 1705 reference documentation
Quality Standards
- DIN 1705 – Copper-Silicon-Manganese Casting Alloys (CuSi3Mn)
- BS EN 12163 – Copper Alloy Rod and Bar (CW116C equivalent)
- ASTM B96 – Silicon Bronze Rod, Bar, and Shapes (C65500 equivalent)
- 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 DIN CuSi3Mn Silicon Bronze Castings
Electrical Accessories India supplies DIN CuSi3Mn / C65500 silicon bronze castings to German, European, and international customers. Quotations within 24 hours. Provide drawing, grade (DIN CuSi3Mn / C65500 / CW116C), quantity, casting process, and delivery destination. EN 10204 3.1 mill certificates with DIN 1705 reference supplied. Indicative pricing: USD 13.90 per kg CIF destination port.