Grade 660
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Grade 660
An alloy that is precipitation hardenable for high mechanical properties. The alloy maintains good strength and oxidation resistance at temperatures up to about 1300°F (700°C). The alloy’s high strength and excellent fabrication characteristics make it useful for various components of aircraft and industrial gas turbines.
Applications include blades, vanes, shafts, tail cones, afterburners, springs, and fasteners. This alloy is also used for automotive applications.
A-286 Chemical composition:
| Aleación | % | Ni | Cr | Mo | B | Fe | Al | Ti | C | Mn | Si | V | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A-286 | Min. | 24 | 13.5 | 1.0 | 0.001 | 1.9 | 0.1 | ||||||
| Max. | 27 | 16 | 1.5 | 0.01 | Balance | 0.35 | 2.35 | 0.08 | 2.0 | 1.0 | 0.5 | 0.03 |
A-286 Physical properties:
| Density | 7.93 g/cm3 |
| Melting range | 1364-1424℃ |
A-286 minimum mechanical properties in the room temperature:
| Status |
Tensile strength Rm N/mm2 |
Yield strength RP0.2N/mm2 |
Elongation A5 % |
| A-286 | 950 | 680 | 28 |
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