UNS N06686
UNS N06686Chemical composition:
Ni | Cr | Mo | Ti | W | C | Mn | S | Si | P | Fe | |
Min | Bal | 19 | 15 | 0.02 | 3.0 | ≤ | |||||
Max | 23 | 17 | 0.25 | 4.4 | 0.01 | 0.75 | 0.02 | 0.08 | 0.04 | 5 |
UNS N06686Physical properties:
Density | 8.73g/cm3 |
Melting point | 1338-1380℃ |
Thermal conductivity | 9.8W/m•°C |
Resistivity | 1.237µΩ•m |
UNS N06686Mechanical properties:
Product form | Thickness or diameter | tensile strength | Yield Strength (0.2% offset) | Elongation | |||
in | mm | ksi | Mpa | ksi | Mpa | % | |
board | 0.5 | 12.7 | 104.7 | 722 | 52.8 | 364 | 71 |
board | 0.25 | 6.35 | 106.3 | 733 | 57.9 | 399 | 98 |
sheet | 0.125 | 3.18 | 116.5 | 803 | 61.1 | 421 | 59 |
sheet | 0.062 | 1.57 | 123 | 848 | 59.2 | 408 | 59 |
club | 1.5 | 38.1 | 117.5 | 810 | 52.1 | 359 | 56 |
UNS N06686Alloy properties:
Corrosion Resistance :HuaNickel UNS N06686 provides outstanding resistance to general corrosion, stress corrosion cracking, and pitting and crevice corrosion. It resists intergranular precipitation during welding and maintains its corrosion resistance in the heat-affected zone of the welded joint. It provides resistance to solutions of reduced and oxidized acids and mixed acids. It is particularly suitable for the treatment of mixed acids containing high concentrations of halides. It exhibits good resistance to mixed acid media with a pH level of 1 or below and chloride levels above 100,000 ppm.
High-temperature strength: The alloy exhibits excellent high-temperature strength, allowing it to work stably in extremely high-temperature, high-pressure environments. This property makes UNS N06686 an ideal material for high-temperature components such as engines, gas turbines, combustion chambers and turbine blades.
UNS N06686Uses of alloys:
HuaNickel UNS N06686 alloy excels in several demanding industrial applications due to its excellent corrosion resistance, high-temperature strength, and good mechanical properties. It is mainly used for heat exchangers, reaction vessels and conveyor pipes in chemical treatment, pollution control, papermaking, industrial and municipal waste treatment. It is also widely used in aerospace, petrochemical, energy and other fields, especially in harsh environments that require circulating heating and cooling.
UNS N06686Process performance:
Welding process: UNS N06686 is easy to weld and does not require post-weld heat treatment to restore corrosion resistance. The recommended welding products are Protective Metal Arc Electrode and Gas Tungsten Arc Electrode 686CPT.
Manufacturing: UNS N06686 is easy to manufacture. The forming operation can be used with standard methods for other high-nickel alloys such as conconel C-276, 22 and 625. Work hardening during cold forming may make intermediate annealing necessary. Thermoforming should be between 1600-2250°F (870 and 1230°C) and all reforming should be above 2000°F (1090°C). UNS N06686 typically cools rapidly at 2150-2200°F (11801200°C).
Relevant standards:
Rods, rods, rods, wires, and forging blanks- ASTM B 462、ASTM B 564 / ASME SB 564、ASTM B 574 / ASME B 574、DIN 17752、DIN 17753、DIN 17754
Plates, plates, and belts ASTM B 575 / ASME SB 575,ASTM B 906 / ASME SB 906,DIN 17750
tube- ASTM B 163 / ASME SB 163,ASTM B 619 / ASME SB 619,ASTM B 622 / ASME SB 622,ASTM B 626 / ASME SB 626,ASTM B 751 / ASME SB 751,ASTM B 775 / ASME SB 775,ASTM B 829 / ASME SB 829,DIN 17751
Welding Products – Welding filler metals686CPT – AWS A5.14 / ERNiCrMo-14
fasteners- ASTM F 467、F 467M、F 468、F 468M;SAE/AMS J2295、J2271、J2655、J2280、J2484、J2485- DIN 17744