AMS 4640 C63000
C63000 nickel aluminium bronze combines high strength and wear resistance under severe loading conditions. The addition of nickel increases the alloy strength without diminishing its ductility, toughness and corrosion resistance.
National Specification
Material may also be released to Customer Specifications, subject to enquiry.
| ASTM | UNS | SEA AMS | British Standard | Other |
|---|---|---|---|---|
| - | C63000 | AMS 4640 | - | FED-QQ-C-465 |
Technical Data
Chemical Composition.
| Cu | Al | Ni | Fe | |
|---|---|---|---|---|
| Min % | - | 9.0 | 4.0 | 2.0 |
| Max % | Bal | 11.0 | 5.5 | 4.0 |
Typical Tensile Properties at Ambient Temperature.
| Annealed Size | 0.2% PS MPa min. | UTS MPa min. | Elongation % min. |
|---|---|---|---|
| Up to 25.4mm | 469 | 758 | 10 |
| Over 25.4mm to 50.8mm | 414 | 758 | 10 |
| Over 50.8mm to 76.2mm | 379 | 724 | 10 |
| Over 76.2mm to 127.0mm | 345 | 689 | 10 |
Physical Properties.
| Density | 7580 kg/m3 |
| Electrical Conductivity | 7% IACS |
| Electrical Resistivity | 0.193μΩm |
| Thermal Conductivity at 20°C | 39.1 W/(mk) |
| Thermal Expansion 20 - 300°C | 16.2 X 10-6 / °K |
Hot Working
Nickel Aluminium Bronze is hot worked by conventional techniques in
the temperature range 815 - 900°C.
Heat Treatment
Annealed at 593°C - 704°C for a time dependent on section thickness
followed by air cooling.
Machining
Machining is best performed using a carbide tool with water soluble
lubricant, a light feed, a moderately heavy depth of cut and the highest
possible cutting speed consistent with best tool life. Typical parameters
are tabulated below.
| Condition | Tool Type | Cut Depth | Speed m/min. | Feed mm/rev. |
|---|---|---|---|---|
| Annealed | Carbide | 3.0 – 6.0 roughing | 30 – 60 | 0.25 |
| 0.12 – 0.25 finishing | 120 – 180 | 0.12 |
The data presented herein are not intended for specification purposes, and should be considered as typical or average values only. Applications suggested for the materials described herein are made solely to allow the reader to make his own evaluation, and are not to be construed as warranties, either limited or express, or fitness for these or other applications. Materials must be tested under actual service conditions to determine their suitability for a particular purpose.