CDA67410 Manganese Bronze
CDA67410 Manganese Bronze is a high-strength copper-zinc alloy with manganese, aluminium, iron and lead additions. It is suited to demanding automotive and industrial applications where wear resistance, strength and corrosion resistance are required.
- Description
- Product Specifications
Description
CDA67410 Manganese Bronze combines strong mechanical performance with good corrosion resistance and excellent hot forming capacity. The lead content supports lubricity, anti-seizing and bonding, making it useful for components exposed to load, movement and wear.
This alloy is suitable for applications such as valve guides, gear rings, shafts and wear plates. It is commonly supplied in bar and rod form, with shapes including round, square, rectangular and profile sections.
Key Features:
- Manganese bronze alloy
- High strength and good corrosion resistance
- Excellent hot forming capacity
- Forgeability rating of 100
- Machinability rating of 50
- Good brazing, spot welding, seam welding and butt welding suitability
- Suitable for automotive and industrial components
- Common shapes include round, square, rectangular and profile
| Element | Composition | Nominal |
|---|---|---|
| Copper (Cu) | 56.5-59.0% | 57.7% |
| Aluminium (Al) | 1.3-2.3% | 1.5% |
| Iron (Fe) | 1.0% max | 0.35% |
| Lead (Pb) | 0.80% max | 0.5% |
| Manganese (Mn) | 1.4-2.6% | 2.0% |
| Nickel (Ni) | 2.0% max | – |
| Silicon (Si) | 0.30-1.0% | 0.5% |
| Tin (Sn) | 0.55% max | 0.2% |
| Zinc (Zn) | Remainder | – |
| Cu + Named Elements | 99.5% min | – |
| Form | Temper | Section Size | Tensile Strength | Yield Strength | Elongation | Rockwell Hardness |
|---|---|---|---|---|---|---|
| Rod | M30 | 31.8 mm | 565 MPa | 303 MPa | 20% | – |
| Tube | M30 | 64 mm | 620 MPa | 324 MPa | 12% | – |
| Bar | H02 | 38 mm | 565 MPa | 317 MPa | 18% | – |
| Rod | H04 | 9.525 mm | 620 MPa | 476 MPa | – | – |
| Rod | H02 | 31.8 mm | 600 MPa | 317 MPa | 15% | 85 B |
| Melting Point – Liquidus | 900°C |
|---|---|
| Melting Point – Solidus | 865°C |
| Density | 8.27 g/cm³ at 20°C |
| Specific Gravity | 8.27 |
| Electrical Resistivity | 9.6 microhm-cm at 20°C |
| Electrical Conductivity | 0.104 MegaSiemens/cm at 20°C |
| Thermal Conductivity | 88.3 W/m.K at 20°C |
| Coefficient of Thermal Expansion | 20.0 x 10⁻⁶ per °C, 20-300°C |
| Specific Heat Capacity | 377.1 J/kg.K at 293 K |
| Modulus of Elasticity | 96500 MPa |
| Modulus of Rigidity | 36200 MPa |
| Soldering | Fair |
|---|---|
| Brazing | Good |
| Oxyacetylene Welding | Not recommended |
| Gas Shielded Arc Welding | Fair |
| Spot Weld | Good |
| Seam Weld | Good |
| Butt Weld | Good |
| Cold Working | Poor |
| Hot Forming | Excellent |
| Forgeability Rating | 100 |
| Machinability Rating | 50 |
| Applicable Specifications | DIN17660 and DIN17672 |
| Common Forms | Bar and rod |
| Common Shapes | Round, square, rectangular and profile |
| Typical Uses | Valve guides, gear rings, shafts and wear plates |
| Casting Characteristics | No casting characteristics available for this alloy |
