17-4PH 630 1.4542 H900 forging nplhaib raws li kos duab
1) AMS 5643 (17/4 PH) yog American aerospace qib stainless hlau nrog 4% tooj liab uas tuaj yeem ua kom tawv
los ntawm qhov kub tsis tshua muaj nag lossis daus hardening kev kho cua sov kom tsim tau cov khoom siv zoo heev ntawm qhov siab
qib zog.
2) condition:
Muaj peev xwm muab tau rau hauv qhov mob annealed (Condition A), lossis kho cua sov raws li hauv qab no: -
Kev mob H900 (900 ° F) Kev mob H925 (925 ° F) Kev mob H1025 (1025 ° F) Kev mob H1075 (1075 ° F) Kev mob
H1100 (1100 ° F) Qhov H1150 (1150 ° F)
AMS 5643 (17/4 PH) cov khoom yuav tsum tsis txhob siv nyob rau hauv lub annealed mob. Qhov no qib ntawm stainless hlau muaj ib tug raug
Qhov ceev ntawm 7.75kg / dm3 thiab yog magnetizable.
| Qib | Chemical Compsition (Max %) | |||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo | Nb | |
| 17-4 PAB TIAB SA 630 | ≤ 0.07 | ≤1 | ≤1.0 | ≤ 0.04 | ≤ 0.03 | 15-17.5 Nws | 3.0-5.0 | 3.0-5.0 | ≤0.5 | ≤ 0.45 |
| Qhov xwm txheej | Yeild zog min Mpa | Tensile zog kuv Mpa | Elongation (%) | Hardness (HB) |
| H900 | 1, 310 | 1,172 ib | 10 | 388/444 ib |
| H925 | 1,172 ib | 1,069 ib | 10 | 375/429 ib |
| H1025 | 1,069 ib | 1,000 | 12 | 331/401 ib |
| H1075 | 1,000 | 862 | 13 | 311/363 ib |
| H1100 Nws | 965 | 793 | 14 | 302/352 ib |
4. Ntau cov duab:
5. AMS 5643 Corrosion Resistance:
AMS 5643 (17/4 PH) yog qhov zoo tshaj rau cov qib chrome ncaj nraim xws li 410 thiab mus txog qhov corrosion kuj ntawm npib tsib xee.
chrome qib. Nyob rau hauv ntau corrosive media, nws yog sib npaug rau chav kawm 302. Corrosion kuj yuav raug cuam tshuam los ntawm nto tiav thiab
kev laus kev kho cua sov. AMS 5643 (17/4 PH) welds zoo heev thiab tuaj yeem welded los ntawm txhua txoj kev lag luam. Preheating thiab
postheating kev coj ntawm tus qauv hardenable stainless hlau qib tsis tas yuav tsum tau.
6. AMS 5643 Daim Ntawv Thov:
Rau cov ntawv thov uas xav tau lub zog siab thiab zoo corrosion kuj, nrog rau siab qaug zog, zoo hnav tsis kam
thiab kev nyuaj siab corrosion kuj. Nws yog haum rau complex qhov chaw uas yuav tsum tau machining thiab vuam, thiab xav tau kev ywj pheej ntawm deformation.
Siv nyob rau hauv aerospace, tiv thaiv offshore roj thiab roj industries. Nws yog siv rau cov khoom siv kho tshuab xws li cov lus qhia qhov chaw, lub cev muaj zog shafts, valve stems,
gears, thiab lwm yam.
