Standards: AMS 4880
AMS 4880 Nickel Aluminum Bronze is one of the most popular landing gear bushing materials specified today along with AMS 4640 material. NBM's brand of AMS 4880 is continuous cast and heat treated. Our AMS 4880 has outstanding mechanical properties and typically exceeds those of AMS 4640. In many cases NBM's AMS 4880 can be substituted for AMS 4640 with the advantage of our material being available in hollow bar, which provides for great cost savings due to weight reductions and a huge elimination of scrap. We can also supply rough machined blanks in this alloy, which helps to reduce scrap issues even further. Please send us your drawings.
Advantages of AMS 4880D Tube over AMS 4640 solid Round Bars:
Typical Uses for AMS 4880 Nickel Aluminum Bronze:
AEROSPACE: Landing Gear Bushings & Bearings, Valve Guides, Stems, Seats
INDUSTRIAL: Corrosion Resistant Parts, Wear Rings, Machine Tool Parts, Piston Guides, Worm Wheels, Hot Mill Gurdes
MARINE: Propeller Hubs, Wear Rings, Hardware, Worm Gears, Shafts, Sleeves
Specifications
| Product Type | Temper Type |
| Centrifugal | ASTM B271, SAE J462, J461, AMS 4880 |
| Continuous | ASTM B505, SAE J462, J461, AMS 4880 |
| Ingot | ASTM B30 |
| Precision | ASTM B806 |
| Sand | ASTM B148, B763, SAE J461, J462 |
| Al | Cu | Fe | Mn | Ni | Sn | Zn | |
| Min/Max | 9.7-10.9 | 78.0 min | 2.0-3.5 | 1.5 | 4.5-5.5 | .20 | .30 |
| Nominals | 10.3 | - | 2.7 | - | 5.0 | - | - |
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 90 10-6 per oF (68-572 F) | 16.2 . 10-6 per oC (20-300 C) |
| Density | 0.272 lb/in3 at 68 F | 7.53 gm/cm3 @ 20 C |
| Electrical Conductivity | 8.5 %IACS @ 68 F | 0.049 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 122.8 ohms-cmil/ft @ 68 F | 20.41 microhm-cm @ 20 C |
| Magnetic Permeability (As Cast) | 1.32 | 1.32 |
| Magnetic Permeability (TQ50 temper) | 1.2 | 1.2 |
| Melting Point - Liquidus | 1930 F | 1054 C |
| Melting Point - Solidus | 1900 F | 1038 C |
| Modulas of Elasticity in Tension | 16000 ksi | 110000 MPa |
| Poisson's Ratio | 0.32 | 0.32 |
| Specific Gravity | 7.53 | 7.53 |
| Specific Heat Capacity | 0.1 Btu/lb/oF at 68 F | 419.0 J/kg . oK at 293 K |
| Thermal Conductivity | 24.2 Btu . ft/(hr . ft2 . oF)at 68F | 41.9 W/m . oK at 20 C |
| Joining Technique | Suitability |
| Brazing | Good |
| Coated Metal Arc Welding | Not Recommended |
| Gas Shielded Arc Welding | Not Recommended |
| Machinability Rating | 50% |
| Oxyacetylene Welding | Not Recommended |
| Soldering | Excellent |
