Alloy A-286 660 Class C Round Bars
A286 Stainless Steel AISI 660M 1.4943 is a precipitation hardening that combines high strength and good corrosion resistance, austenitic stainless steel designed for use at temperatures up to 1300°F (704°C) , where high tensile strength, excellent creep strength and good corrosion resistance are required. LSS™ A286 is available in a wide range of ingot, billet, bar, and coil rod sizes. Bar is available as either rounds or flats.
A286 alloy provides high strength up to a temperature of 1300° F and corrosion resistance up to a constant temperature of 1500° F or an intermittent temperature of 1800° F. A286, which is a ductile, non-magnetic, iron-based alloy, can reach its highest strength level through solution heat treating and age hardening. Because it is a higher strength metal, greater pressure is required when forming. It is best to weld and form A286 in the solution treated condition. Before machining A286, it is best to solution treat and cold working the material first.
A286 alloy is a heat and corrosion resistant austenitic ironbase material which can be age hardened to a high strength level. The alloy is also used for low temperature applications requiring a ductile, non-magnetic high strength material at temperatures ranging from above room temperature down to at least -320°F (-196°C). The alloy may be used for moderate corrosion applications in aqueous solutions. Type A286 alloy can be produced by AOD refining or vacuum induction melting. Vacuum arc or electroslag remelting procedures may be used to further refine the material. Type A286 alloy is available in plate, sheet and strip.
Chemical Composition Of Alloy A-286 660 Class C Round Bars
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | V | Al | B | Co | Cu |
| A 286 | 0.08 max | 2 max | 0.025 max | 0.025 max | 1.0 max | 13.5-16 | 24-27 | 1-1.5 | 1.9-2.35 | 0.10-0.50 | 0.35 max | 0.003-0.010 | 1.0 max | 0.50 max |
Mechanical Properties Of Alloy A-286 660 Class C Round Bars
| Test Temperature | Yield 0.2% | Yield 0.2% | Yield 0.2% | Yield 0.2% | Tensile Strength | % Elongation in 2″ {50.8mm} | % Reduction of Area | |
|---|---|---|---|---|---|---|---|---|
| f/c | ksi | Mpa | ksi | Mpa | ksi | Mpa | ||
| 70/21 | 90 | 621 | 92 | 655 | 145 | 1000 | 24 | 45 |
| 400/204 | 76 | 524 | 93 | 645 | 143 | 986 | 21 | 52 |
| 800/427 | 72 | 496 | 93 | 641 | 138 | 951 | 19 | 35 |
| 1000/538 | 62 | 427 | 87 | 603 | 131 | 903 | 18 | 31 |
| 1100/593 | 64 | 445 | 90 | 621 | 122 | 841 | 21 | 23 |
| 1200/649 | 62 | 431 | 88 | 607 | 103 | 713 | 13 | 14 |
| 1300/704 | 68 | 472 | 86 | 593 | 86 | 595 | 11 | 10 |
| 1400/760 | 44 | 307 | 62 | 427 | 64 | 441 | 18 | 23 |
| 1500/816 | 31 | 214 | 33 | 228 | 36 | 251 | 19 | 17 |
Physical Properties Of Alloy A-286 660 Class C Round Bars
| Density | 7.93 kg/dm³ |
| Melting point | 1364-1424°C |