Pataki Irin alagbara
0102030405
OHUN OJUMO
AAYE | % | C | Ati | Mn | P | S | Ni | Kr | Pẹlu | Nb | Al |
17-4PH | MIN | - | - | - | - | - | 3.0 | 15.0 | 3.0 | 0.15 | - |
MAX | 0.07 | 1.0 | 1.0 | 0.04 | 0.03 | 5.0 | 17.5 | 5.0 | 0.45 | - | |
17-7PH | MIN | - | - | - | - | - | 6.5 | 16.0 | - | - | 0.75 |
MAX | 0.09 | 1.0 | 1.0 | 0.04 | 0.03 | 7.75 | 18.0 | - | - | 1.5 |
Ti ara Properties
Awoṣe | 17-4PH | 17-7PH |
iwuwo | 7.85g/cm3 | 7.85g/cm3 |
Ojuami yo | 1404-1440℃ | 1404-1440℃ |
ẸYA Ọja
17-4PH jẹ chromium-nickel-Ejò ojoriro lile martensitic alagbara, irin. Iwọn irin alagbara irin yii jẹ ijuwe nipasẹ agbara giga, lile ati resistance ipata. Awọn ohun-ini ẹrọ ti ni ilọsiwaju nipasẹ ooru Itọju ati awọn agbara ipanu ti o to 1100-1300 MPa (160-190 ksi) le ṣee ṣe. A ko le lo ite yii ni awọn iwọn otutu ti o ga ju 300°C (572°F) tabi ni awọn iwọn otutu kekere pupọ. O ni resistance ipata to dara si oju aye ati awọn acids dilute tabi iyọ, ati pe resistance ipata rẹ jẹ afiwera si ti 304.
17-7PH jẹ austenitic-martensitic ojoriro lile irin alagbara, irin ti o ni idagbasoke lori ipilẹ 18-8CrNi, ti a tun mọ ni iyipada alakoso iṣakoso alagbara, irin. 17-7PH irin alagbara, irin ni riru austenitic agbari lẹhin ri to ojutu Itoju, pẹlu ti o dara ṣiṣu toughness ati machinability, lẹhin tempering, ki awọn austenite ojoriro ti carbides lẹhin ti awọn ayipada ninu tiwqn, ati ki o nipasẹ awọn martensitic transformation ilana, julọ ti ajo ti wa ni yipada sinu kan kekere erogba tempering ilana pẹlu ti o dara toughness. Lẹhin ti tempering, awọn austenite ojoriro carbide tiwqn ayipada, ati ki o nipasẹ awọn martensitic transformation ilana, julọ ti awọn agbari ti wa ni yipada sinu kan kekere erogba tempered martensite pẹlu ti o dara toughness, ati ki o ni o dara darí ini ni alabọde otutu. 17-7PH resistance resistance jẹ dara julọ ju irin alagbara martensitic gbogbogbo.
