C63200
ASTM B150: C63200 is an American grade of nickel aluminium bronze. Containing around 9% aluminium, 5% nickel and 4% iron the alloy offers an inherent high strength and hardness combined with a very good toughness and an excellent resistance to wear, shock and abrasion.
In addition, C63200 has low magnetic permeability, making it ideal for use on instrumentation systems and seawater piping systems and also offers a very good corrosion, erosion and cavitation resistance in seawater along with a high retention of mechanical properties at low and elevated temperatures.
Nominal Composition
| Copper | Rem |
| Al | 8.7 - 9.5% |
| Ni | 4.0 - 4.8% |
| Fe | 3.5 - 4.3% |
| Mn | 1.2 - 2.0% |
Key Features
- High resistance to corrosion and erosion
- Very good strength and toughness
- Excellent resistance to shock, wear and abrasion
- Low magnetic permeability
- High and low temperature performance
Typical Mechanical Properties
| Form | Size Range | Yield 0.2% | UTS | Elong % | Hardness (HB) | |||
| Imperial | Metric | Ksi | MPa | Ksi | MPa | % | (HB) | |
| TQ50 | <=3" | <= 80mm | 50-56 | 345-386 | 90-107 | 621-738 | 15-25 | 190-230 |
| TQ50 | <=3-5" | 80-130mm | 50-54 | 345-372 | 90-105 | 621-738 | 18-23 | 190-230 |
| TQ50 | >5" | >130mm | 50-53 | 345-365 | 90-104 | 621-717 | 18-23 | 190-230 |
Typical Physical Properties
| Property | Value |
| Melting Point | 1046°C |
| Density | 7.64 g/cm³ |
| Thermal conductivity (RT) | 36 W/m°K |
| Electrical conductivity | 7 % IACS |
| Thermal expansion coefficient (20-200°C) | 9 x 10-6 /°C |
| Modulus of Elasticity | 44 GPa |
Fabrication Properties
| Property | Value |
| Hot Formability | Not Recommended |
| Cold Formability | Not Recommended |
| Machinability rating (free cutting brass = 100) | 30% |
| Stress Relieving Temp. Range | 705°C |
| Maximum operating temperature | 230°C |
Joining Methods
| Method | Rating |
| Soldering | Fair |
| Brazing | Fair |
| Oxy-acetylene welding | Not recommended |
| Gas-shielded arc welding | Excellent |
Typical Uses
Typical applications for the C63200 material include marine fasteners, valve assemblies, drive shafts, sea water pump bodies, weapons handling, bushes, sleeve bearings, nuts & bolts
This technical information is given by Holme Dodsworth Metals without charge and the user shall employ such information at their own discretion and risk. For more detailed technical advice on temper selection, fabrication, joining, machining, physical and mechanical data please contact us as space does not permit the listing of every feature of the material.