17-4PH 630 1.4542 H900 yekugadzira mhete maererano nemifananidzo
1) AMS 5643 (17/4 PH) iAmerican aerospace giredhi simbi isina tsvina ine 4% mhangura inogona kuomeswa.
nemvura yakaderera tembiricha inoomesa kupisa kurapwa kuti ibudise yakanakisa michina zvinhu pakakwirira
mazinga esimba.
2) mamiriro:
Inogona kupihwa mune annealed condition (Condition A), kana kupisa kunorapwa sezvinotevera:-
Chimiro H900 (900°F) Chimiro H925 (925°F) Chimiro H1025 (1025°F) Chimiro H1075 (1075°F) Chimiro
H1100 (1100°F) Chimiro H1150 (1150°F)
AMS 5643 (17/4 PH) zvinhu hazvifanirwe kushandiswa mune annealed mamiriro. Iyi giredhi yesimbi isina tsvina ine yakajairika
density ye7.75kg/dm3 uye inokwanisa magnetizable.
| Giredhi | Chemical Compsition (Max %) | |||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo | Nb | |
| 17-4PH AISI 630 | ≤0.07 | ≤1 | ≤1.0 | ≤0.04 | ≤0.03 | 15-17.5 | 3.0-5.0 | 3.0-5.0 | ≤0.5 | ≤0.45 |
| Condition | Yeild Strength min Mpa | Tensile Simba min Mpa | Elongation(%) | Kuoma (HB) |
| H900 | 1,310 | 1,172 | 10 | 388/444 |
| H925 | 1,172 | 1,069 | 10 | 375/429 |
| H1025 | 1,069 | 1,000 | 12 | 331/401 |
| H1075 | 1,000 | 862 | 13 | 311/363 |
| H1100 | 965 | 793 | 14 | 302/352 |
4. Mifananidzo yekugadzira:
5. AMS 5643 Corrosion Resistance:
AMS 5643 (17/4 PH) yakakwirira kune yakatwasuka chrome mamakisi se 410 uye inoswedera pakuramba kwecorrosion ye nickel.
chrome mamakisi. Mune midhiya yakawanda inoodza, yakaenzana nekirasi 302. Corrosion resistance ichakanganiswa nepamusoro pekupedzisira uye.
kuchembera kupisa kurapwa. AMS 5643 (17/4 PH) inokwenenzverwa zvakanaka uye inogona kugadzirwa nemaitiro ese ekutengesa. Preheating uye
postheating maitiro emhando yakaomeswa simbi isina magiredhi haidiwi.
6. AMS 5643 Application :
Zvekushandisa zvinoda simba rakakwirira uye yakanaka corrosion kuramba, pamwe nekuneta kwesimba, kunaka kupfeka kuramba.
uye stress corrosion resistance. Inokodzera zvikamu zvakaoma zvinoda machining uye welding, uye zvinoda rusununguko rwekugadzirisa.
Inoshandiswa muaerospace, kudzivirira offshore oil uye magasi maindasitiri. Inoshandiswa kune zvemagetsi zvikamu senge magidhi zvikamu, mota shafts, valve stems,
magiya, nezvimwewo.
