What is C63000 Nickel Aluminum Bronze?
C63000 nickel aluminum bronze is a wrought high-strength copper alloy commonly supplied as bar, rod, and forged products. It is strongly associated with AMS 4640 and is used for aerospace, marine, oil and gas, pump, valve, and heavy-duty machined components.
Compared with cast aluminum bronzes, C63000 is often specified when the drawing requires wrought nickel aluminum bronze bar stock, high strength, seawater corrosion resistance, and reliable machined-part performance.
Common Names and Cross References
| Name or designation | How it is commonly used |
|---|---|
| C63000 | UNS alloy designation |
| AMS 4640 | Common aerospace and bar stock specification |
| C630 Bronze | Common stock name |
| Nickel aluminum bronze | Alloy family description |
Chemical Composition (%)
| Element | Minimum | Maximum | Nominal |
|---|---|---|---|
| Copper (Cu) | Remainder | Remainder | Balance |
| Aluminum (Al) | 9.0 | 11.0 | - |
| Nickel (Ni) | 4.0 | 5.5 | - |
| Iron (Fe) | 2.0 | 4.0 | - |
| Manganese (Mn) | - | 1.5 | - |
| Zinc (Zn) | - | 0.30 | - |
| Tin (Sn) | - | 0.20 | - |
| Silicon (Si) | - | 0.25 | - |
Mechanical and Physical Properties
Values depend on diameter, product form, and temper. The following are common AMS 4640 bar datasheet ranges.
| Property | Typical published value |
|---|---|
| Tensile strength | 100,000-110,000 psi |
| Yield strength | 50,000-68,000 psi |
| Elongation | About 10% in 4D |
| Brinell hardness | 187-248 HB |
| Modulus of elasticity | 17,500 ksi |
| Density | 0.274 lb/in3 |
| Liquidus melting point | About 1930 F |
| Machinability rating | 30, based on free-cutting brass = 100 |
Fabrication and Welding Suitability
| Operation | Suitability |
|---|---|
| Machining | Fair |
| Cold working | Not recommended |
| Soldering | Not recommended |
| Oxyacetylene welding | Not recommended |
| Gas shielded arc welding | Good |
| Resistance welding | Good |
Typical Applications for C63000
- Aircraft landing gear components and aerospace machined parts.
- Marine propeller shafts and seawater-exposed hardware.
- Pump parts, valve components, and oil and gas equipment.
- High-strength bearings, bushings, and wear components.
- Machined parts requiring AMS 4640 or wrought nickel aluminum bronze.
RFQ Details for C63000 Parts
Send the C63000 or AMS 4640 callout, bar size, product form, temper if specified, finished dimensions, quantity, certification requirements, and drawings. If the drawing calls for cast nickel aluminum bronze instead of wrought bar, compare with C95500 nickel aluminum bronze.
Available Forms
Available Forms and Shapes
Review common product forms for C63000 Nickel Aluminum Bronze, then send drawings, dimensions, quantity, and finished-part requirements for material and production guidance.
Bronze Solid Bar
Bronze solid round bar and rod stock for machining bushings, bearings, pins, spacers, gears, and custom bronze parts.
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Bronze Flat Plate
Bronze flat plate, flat bar, and rectangular stock for wear plates, guide strips, thrust surfaces, and custom machined parts.
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Plain Bronze Sleeve Bushings
Plain bronze sleeve bushings and cast bronze sleeve bearings in C93200 SAE 660 and alternative alloys for radial load applications.
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Custom CNC Bronze Parts
Custom CNC machined bronze components, bushings, lead screw nuts, wear parts, and replacement parts made from drawings or samples.
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