Alloy 686 waa hal-waji, austenitic Ni-Cr-Mo-W alloy oo bixiya caabbinta daxalka ee heerar kala duwan oo daran.Nikkelkeeda sare (Ni) iyo molybdenum (Mo) waxay bixiyaan iska caabin wanaagsan si loo yareeyo xaaladaha, iyo chromium sare (Cr) waxay bixisaa iska caabin ah warbaahinta oxidizing.Molybdenum (Mo) iyo tungsten (W) waxay caawiyaan iska caabbinta daxalka gudaha sida godad.Birta (Fe) si dhow ayaa loo xakameeyaa si kor loogu qaado guryaha.Kaarboon yar (C) waxa ay caawisaa in la yareeyo roobabka soohdinta hadhuudhka si loo ilaaliyo adkaysiga daxalka ee aagagga kulaylku saameeyay ee kala-goysyada alxanka.
Alloy | % | Fe | Cr | Ni | Mo | Mg | W | C | Si | S | P | Ti |
686 | Min. | - | 19.0 | dheelitirnaan | 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 |
Cufnaanta | 8.73 g/cm³ |
barta dhalaalaysa | 1338-1380 ℃ |
Xaalada | Xoog xajin Rm N/mm² | Xoog soo saar Rp 0. 2N/mm² | Dheeraynta Sida% |
Daaweynta xalalka | 810 | 359 | 56 |
Baar/Usha | Silig | Xarig/ Gariir | Xaashi/Saxaamo | Dhuumaha/Tube | Been abuurasho | Xidhayaasha |
ASTM B 462, ASTM B 564 ASME SB 564, ASTM B 574 DIN 17752 | ASTM B462 ASTM B564 ASTM B 574 DIN 17752 | ASTM B575 ASTM B 906 ASME SB 906 DIN 17750 | ASTM B575 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 |
1.Cabbin wanaagsan oo hoos u dhigaya xaaladaha;
2.Cabbir wanaagsan oo ku saabsan warbaahinta oksaydheynta;
3. Iska caabin guud, daxalka godad iyo dildilaaca ayaa kordha.
warbaahinta qallafsan ee farsamaynta kiimikada, xakamaynta wasakheynta, saxarka iyo samaynta waraaqaha, iyo codsiyada maareynta qashinka.