Aluminum Bronze
C63000 — Wrought Nickel-Aluminum Bronze
A high-strength wrought aluminum bronze (with nickel and iron) for heavy-duty bushings, wear parts, valve components and marine hardware.
Grade overview
C63000 is a wrought aluminum bronze strengthened by nickel and iron. It is supplied as rod, bar, plate and forgings and heat-treatable to higher strength conditions. It has high strength, good wear and galling resistance, and good corrosion resistance, including in many sea-water services.
Strictly it is a nickel-aluminum bronze; it is listed under Aluminum Bronze on this site to keep the wrought grade next to the cast aluminum bronzes C95400 and C95500. Compared with the cast alloy C95800, C63000 is a wrought material – which matters for bar and plate availability and for the properties obtainable.
Alloy family and identification
Wrought copper-aluminum-nickel-iron alloy, UNS C63000. Different from the cast grades C95400/C95500/C95800 even where compositions overlap; always specify the product specification and temper.
| Item | Detail |
|---|---|
| UNS designation | C63000 |
| Common name | Wrought Nickel-Aluminum Bronze |
| Alloy family | Aluminum Bronze |
| Type | Wrought copper-aluminum-nickel-iron alloy |
Typical composition
| Element | Nominal limit, wt % |
|---|---|
| Copper (Cu) | Remainder |
| Aluminum (Al) | 9.0 – 11.0 |
| Nickel (Ni, incl. Co) | 4.0 – 5.5 |
| Iron (Fe) | 2.0 – 4.0 |
| Manganese (Mn) | 1.5 max |
| Silicon (Si) | 0.25 max |
Reference data only – typical or nominal values from published specifications, not a guarantee of supplied material. Confirm against the current edition of the applicable specification, the product form and condition, and the material test certificate. Technical review by the company is required before publication or reliance.
Typical mechanical properties
Mechanical property values are intentionally not published here. They vary with specification, product form, size and temper or condition and will be added only once the governing specification and condition are confirmed. Request the applicable specification or test certificate with your inquiry.
Physical properties
Physical properties (density, thermal and electrical data) are not listed until verified against an authoritative datasheet. Contact us for current reference data.
Corrosion and wear considerations
Good resistance to corrosion, cavitation and erosion in many sea-water and process environments, and strong galling and wear resistance. Performance depends on heat treatment (a correctly processed microstructure matters) and on service conditions.
Machinability and fabrication
Machinable with rigid setups and suitable carbide or coated tooling; slower than free-cutting bronzes and tool wear is higher. Welding and heat treatment require qualified procedures.
Common industrial applications
- Heavy-duty bushings and bearings
- Valve seats, stems and guides
- Pump shafts and wear rings
- Marine and offshore hardware
- Aircraft-type and tooling components (as specified)
Examples only. Suitability must be confirmed for the actual operating environment.
Available product forms
Sizes, tolerances and stock are not published and must be confirmed with the company.
Relevant products
Standards and specifications
- ASTM B150/B150M – aluminum bronze rod, bar and shapes
- ASTM B171/B171M – copper-alloy plate and sheet for pressure vessels, condensers and heat exchangers
- Alloy and product-form coverage to be confirmed against the current edition
Verify against the current edition and the exact product form before specifying.
Certification and inspection options
Material test certificates, chemical analysis, dimensional reports and third-party inspection can be requested with your inquiry. What can be supplied for C63000 is confirmed with the company for each order; no certificate is implied by this page.
Related grades
Frequently asked questions
Why is C63000 shown under Aluminum Bronze?
To keep the wrought aluminum bronze next to the cast aluminum bronzes. Technically it also contains nickel and is sometimes called a nickel-aluminum bronze.
Is C63000 the same as C95800?
No. C63000 is wrought; C95800 is a cast composition. Their compositions and available product forms differ.
Need C63000 in a specific form?
Share your grade, dimensions, quantity and technical requirements with our team.