Alloy 686 is a single-phase, austenitic Ni-Cr-Mo-W alloy offering outstanding corrosion-resistance in a range of severe environments. Its high nickel (Ni) and molybdenum (Mo) provide good resistance in reducing conditions, and high chromium (Cr) offers resistance to oxidizing media. Molybdenum (Mo) and tungsten (W) aid resistance to localized corrosion such as pitting. Iron (Fe) is closely controlled to enhance properties. Low carbon (C) helps minimize grain boundary precipitation to maintain corrosion-resistance in the heat-affected zones of welded joints.
Inconel 686 Chemical Composition| Alloy |
% |
Fe |
Cr |
Ni |
Mo |
Mg |
W |
C |
Si |
S |
P |
Ti |
|
686 |
Min. |
- |
19.0 |
balance |
15.0 | - | 3.0 | - | - | - | - | 0.02 |
|
Max. |
2.0 |
23.0 |
17.0 |
0.75 | 4.4 | 0.01 | 0.08 | 0.02 | 0.04 | 0.25 |
| Density | 8.73 g/cm³ |
| Melting point | 1338-1380 ℃ |
| Status |
Tensile strength Rm N/mm² |
Yield strength Rp 0. 2N/mm² |
Elongation As % |
| Solution treatment | 810 | 359 | 56 |
| Bar/Rod | Wire | Strip/Coil | Sheet/Plate | Pipe/Tube | Forging | Fasteners |
| ASTM B 462, ASTM B 564 ASME SB 564, ASTM B 574 DIN 17752 | ASTM B462 ASTM B564 ASTM B 574 DIN 17752 | ASTM B 575 ASTM B 906 ASME SB 906 DIN 17750 | ASTM B 575 ASTM B 906 DIN 17750 | ASME SB163,ASTM B 619 ASTM B 622 ASTM B 626 ASTM B751 ASTM B 775 ASME SB 829 | ASTM B 462, ASTM B 564 ASME SB 564,ASTM B 574 ASME B 574,DIN 17752 | ASTM F 467/ F 468/ F 468M; SAE/AMS J2295, J2271, J2655, J2280 |
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts
Supply in welding wire and spring wire in coil form and cut length.
Forging Ring or gasket,size can be customized with bright surface and precision tolerance
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.
Standards size and customized dimension can be produced by us with small tolerance
Soft condition and hard condition with AB bright surface, width up to 1000mm
Alloy 686 materials in forms of Bolts,screws,flanges and other fasterners, according to clients specification.
1.Good resistance in reducing conditions;
2.Good resistance to oxidizing media;
3.Resistance to general, pitting and crevice corrosion increases.
ggressive media in chemical processing, pollution control, pulp and paper manufacture, and waste management applications.