Alloy 686 yog ib-theem, austenitic Ni-Cr-Mo-W alloy muab qhov zoo tshaj plaws corrosion-ua hauj nyob rau hauv ntau qhov chaw hnyav.Nws cov nickel siab (Ni) thiab molybdenum (Mo) muab kev tiv thaiv zoo hauv kev txo qis, thiab siab chromium (Cr) muaj kev tiv thaiv oxidizing media.Molybdenum (Mo) thiab tungsten (W) pab tiv thaiv kev xeb hauv zos xws li pitting.Hlau (Fe) yog tswj kom zoo los txhim kho cov khoom.Cov pa roj carbon tsawg (C) pab txo qis ciam teb nag lossis daus los tswj kev tiv thaiv corrosion nyob rau hauv cov tshav kub-tshem tawm ntawm cov pob qij txha.
Alloy | % | Fe | Cr | Ni | Mo | Mg | W | C | Si | S | P | Ti |
686 ib | Min. | - | 19.0 Nws | tshuav nyiaj li cas | 15.0 Nws | - | 3.0 | - | - | - | - | 0.02 ib |
Max. | 2.0 | 23.0 Nws | 17.0 Nws | 0.75 ib | 4.4 | 0.01 ib | 0.08 ib | 0.02 ib | 0.04 ib | 0.25 |
Qhov ntom | 8.73 g/m² |
Melting point | 1338-1380 ℃ |
xwm txheej | Tensile zog Rm N/mm² | Yield zog Rp 0. 2N/mm² | Elongation Raws li % |
Kev kho mob | 810 | 359 ib | 56 |
Bar / Qws | Hlau | Sawb / Coil | Ntawv / phaj | Tube / 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 Cov Lus Qhia Tshwj Xeeb | 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 |
1.Kev ua haujlwm zoo hauv kev txo qis;
2.Kev ua haujlwm zoo rau oxidizing media;
3.Resistance rau dav dav, pitting thiab crevice corrosion nce.
Kev tawm tsam hnyav hauv kev ua tshuaj lom neeg, tswj kev ua qias tuaj, kev tsim cov ntaub ntawv thiab ntawv, thiab kev siv pov tseg pov tseg.