Alloy 686 jẹ ipele-ọkan kan, austenitic Ni-Cr-Mo-W alloy ti n funni ni atako ipata to dayato ni ọpọlọpọ awọn agbegbe ti o lagbara.Nickel giga rẹ (Ni) ati molybdenum (Mo) pese resistance to dara ni idinku awọn ipo, ati chromium giga (Cr) n funni ni resistance si media oxidizing.Molybdenum (Mo) ati tungsten (W) iranlọwọ iranlọwọ si ipata agbegbe gẹgẹbi pitting.Iron (Fe) ni iṣakoso ni pẹkipẹki lati mu awọn ohun-ini pọ si.Erogba kekere (C) ṣe iranlọwọ lati dinku ojoriro aala ọkà lati ṣetọju ipata-resistance ni awọn agbegbe ti o kan ooru ti awọn isẹpo welded.
Alloy | % | Fe | Cr | Ni | Mo | Mg | W | C | Si | S | P | Ti |
686 | Min. | - | 19.0 | iwontunwonsi | 15.0 | - | 3.0 | - | - | - | - | 0.02 |
O pọju. | 2.0 | 23.0 | 17.0 | 0.75 | 4.4 | 0.01 | 0.08 | 0.02 | 0.04 | 0.25 |
iwuwo | 8.73 g/cm³ |
Ojuami yo | 1338-1380 ℃ |
Ipo | Agbara fifẹ Rm N/mm² | Agbara ikore Rp 0. 2N/mm² | Ilọsiwaju Bi% |
Itọju ojutu | 810 | 359 | 56 |
Pẹpẹ / Rod | Waya | Rinhoho / Okun | Dì / Awo | Pipe / Tube | Ṣiṣẹda | Awọn 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 |
1.Good resistance ni idinku awọn ipo;
2.Good resistance to oxidizing media;
3.Resistance si gbogboogbo, pitting ati crevice ipata posi.
media ibinu ni iṣelọpọ kemikali, iṣakoso idoti, ti ko nira ati iṣelọpọ iwe, ati awọn ohun elo iṣakoso egbin.