Product
Product Details
C85400 Yellow Brass Casting
C85400 Yellow Brass Casting
C85400 (UNS C85400, CDA 854) is a leaded yellow brass casting alloy containing 65–70% copper, 28–32% zinc, and 1.3–2.5% lead. It is widely used as a cost-effective casting brass for decorative hardware, architectural fittings, plumbing trim, electrical component housings, and general commercial castings where the slightly lower copper content compared to C85200 provides economic advantage without significantly compromising appearance or indoor corrosion performance. C85400 offers excellent machinability, good castability, and attractive golden-yellow colour.
Alloy Overview
C85400 with 65–70% copper remains largely alpha-phase with some beta, giving good castability and adequate corrosion resistance for indoor and protected outdoor environments. The 1.3–2.5% lead provides machinability of approximately 85% on the CDA scale. C85400 is the preferred choice for high-volume decorative hardware and architectural fittings where cost is a primary driver and severe corrosion resistance is not required.
Material Composition – C85400 Yellow Brass Casting
| Element | Min % | Max % | Typical % | Role |
|---|---|---|---|---|
| Copper (Cu) | 65.0 | 70.0 | 67.5 | Primary matrix, appearance |
| Zinc (Zn) | 28.0 | 32.0 | 30.0 | Strength, castability, colour |
| Lead (Pb) | 1.3 | 2.5 | 1.8 | Machinability |
| Tin (Sn) | – | 0.50 | 0.10 | Minor tightness |
| Nickel (Ni) | – | 0.50 | – | Minor |
| Iron (Fe) | – | 0.30 | 0.05 | Impurity |
| Aluminium (Al) | – | 0.005 | – | Impurity |
| Silicon (Si) | – | 0.005 | – | Impurity |
| Antimony (Sb) | – | 0.05 | – | Impurity |
| Phosphorus (P) | – | 0.02 | – | Deoxidant |
Mechanical and Physical Properties
| Property | Sand Cast | Gravity Die Cast | Standard |
|---|---|---|---|
| Tensile Strength (MPa) | 260 min | 295 min | ASTM B584 / EN 1982 |
| 0.2% Yield Strength (MPa) | 90 min | 110 min | ASTM E8 |
| Elongation (%) | 20 min | 23 min | ASTM E8 |
| Hardness (HB) | 60–85 | ASTM E10 | |
| Density (g/cm³) | 8.55 | – | |
| Electrical Conductivity (%IACS) | 24–26 | ASTM B193 | |
| Thermal Conductivity (W/m·K) | 100 | – | |
| Melting Range (°C) | 875–935 | – | |
| Machinability Rating (%) | 85–90 | CDA (C36000=100%) | |
International Equivalent Grades
| Standard | Designation | Common Name |
|---|---|---|
| USA (UNS/ASTM B584) | C85400 / CDA 854 | Yellow Brass Casting |
| Europe (EN 1982) | CC752S | CuZn37Pb2-C |
| Germany (DIN 1709) | CuZn30Pb2-C | Gelbguss |
| India (IS 318) | LTB4 | Leaded Yellow Brass Grade 4 |
| Japan (JIS H5111) | YBsC2 | Yellow Brass Casting 2 |
| UK (BS 1400) | SCB1 (nearest) | Yellow Brass Casting |
| ISO | CuZn30Pb2-C | Yellow Brass Sand Casting |
Applications
C85400 is used for: decorative door hardware (handles, knobs, escutcheons, letterboxes, hinges); architectural fittings and furniture hardware; lamp fittings and chandelier components; plumbing trim (tap bodies, shower fittings, towel rail ends); electrical connector housings and terminal block bodies; general commercial castings for hardware, stationery, and industrial applications; and high-volume pressure die castings of thin-wall decorative components.
Casting Processes Available
| Process | Weight Range | Tolerance Class | Typical Use |
|---|---|---|---|
| Sand Casting | 0.05–200 kg | CT7–CT9 | Complex geometry, low–medium volume, large parts |
| Gravity Die Casting | 0.05–10 kg | CT5–CT7 | Medium–high volume, plumbing fittings, hardware |
| Pressure Die Casting | 0.01–2 kg | CT4–CT6 | High-volume thin-wall decorative and functional parts |
| Investment Casting | 0.01–5 kg | CT4–CT5 | Precision complex components, architectural hardware |
Pricing
US$ 11.50 per kilogram (CIF major port, indicative). Final price subject to casting process, part weight, complexity, order quantity, surface finish, and secondary machining. MOQ: samples from 1 piece; production from 50 pieces. Firm quotation within 24 hours on receipt of drawing or sample.
Quality and Certification
ASTM B584 (C85400); EN 1982 CC752S; IS 318 LTB4; ISO 9001:2015; EN 10204 3.1 MTR. ISO 9001:2015 certified production. EN 10204 3.1 material test certificates issued with every production batch confirming composition within specification limits.
Related Brass Casting Grades
- C85700 Yellow Brass Casting
- C46400 Naval Brass Casting
- C83600 Red Brass / LG2 Gunmetal Casting
- C86500 Manganese Bronze Casting
- Brass Castings – All Grades Overview
Request a Quote
Electrical Accessories India supplies C85400 Yellow Brass Casting castings. Price: US$ 11.50/kg. Email: info@elecaccs.com | www.elecaccs.com