CDA67310 Manganese Bronze
CDA67310 Manganese Bronze is a high-strength copper-zinc alloy with manganese, silicon and lead additions. It is suited to fastener, industrial, marine and oil and gas applications where strength, wear resistance and machinability are required.
- Description
- Product Specifications
Description
CDA67310 Manganese Bronze combines good strength with corrosion resistance and reliable machining performance. The lead content supports lubricity, anti-seizing and bonding, making it useful for bearing, bushing and wear-related components.
This alloy is suitable for hot forming, hot pressing and machining. It is commonly used for fasteners, lead screw nuts, clutch bearings, shaft bushings, propeller shafts, sleeve bearings, pump parts, seal rings, drive shafts, valve seats, gears, cams and connecting rods.
Key Features:
- Manganese bronze alloy
- Suitable for high-strength applications
- Good corrosion resistance
- Lead content supports lubricity and anti-seizing
- Machinability rating of 70
- Suitable for hot forming, hot pressing and machining
- Common shapes include round, square, rectangular, hexagonal and profile
- Used across fastener, industrial, marine, aerospace and oil and gas applications
| Element | Composition | Nominal |
|---|---|---|
| Copper (Cu) | 61.5-63.0% | 60.5% |
| Aluminium (Al) | 0.50% max | – |
| Iron (Fe) | 0.40% max | – |
| Lead (Pb) | 0.40-0.80% | 1.7% |
| Manganese (Mn) | 1.5-3.5% | 2.7% |
| Nickel (Ni) | 0.25% max | – |
| Silicon (Si) | 0.50-1.5% | 1.0% |
| Tin (Sn) | 0.30% max | – |
| Zinc (Zn) | Remainder | 34.1% |
| Cu + Named Elements | 99.5% min | – |
| Form | Temper | Section Size | Tensile Strength | Yield Strength | Elongation | Rockwell Hardness |
|---|---|---|---|---|---|---|
| Bar | H50 | <25.4 mm | 448 MPa | 276 MPa | 11% | 80 B |
| Melting Point – Liquidus | 874°C |
|---|---|
| Density | 8.3 g/cm³ at 20°C |
| Specific Gravity | 8.3 |
| Electrical Conductivity | 0.13 MegaSiemens/cm at 20°C |
| Thermal Conductivity | 95.0 W/m.K at 20°C |
| Coefficient of Thermal Expansion | 19.0 x 10⁻⁶ per °C, 20-300°C |
| Modulus of Elasticity | 117200 MPa |
| Machinability Rating | 70 |
| Applicable Specifications | No information available in the supplied data sheet |
|---|---|
| Common Fabrication Processes | Hot forming, hot pressing and machining |
| Common Temper Options | Bar H50, forgings T and rod H50 |
| Common Shapes | Round, square, rectangular, hexagonal and profile |
| Fastener Uses | Fasteners and lead screw nuts |
| Industrial Uses | Clutch bearings, shaft bushings, propeller shafts, sleeve bearings, thrust bearings, pump parts, seal rings, spindles, idler pins, drive shafts, piston heads, bearings, bushings, pins, wear plates, gears and cams |
| Marine Uses | Hardware and valve seats |
| Other Uses | Connecting rods |
| Casting Characteristics | No casting characteristics available for this alloy |
