Ntawm ntau hom stainless hlau siv hauv kev lag luam niaj hnub no,cov hlau tsis xeb uas ua kom tawv (PH) los ntawm nag lossis dauslawv muaj nqis heev rau lawv txoj kev sib xyaw ua kemuaj zog heev, toughness, thiab corrosion kujOb qib nrov tshaj plaws hauv pawg no yog15-7PHthiab17-4PH.
Txawm hais tias lawv koom nrog tib tsev neeg thiab muaj qee qhov zoo sib xws, muaj qhov sib txawv tseem ceeb hauv lawvcov tshuaj lom neeg sib xyaw, cov khoom siv kho tshuab, thiab cov ntawv thov.
Hauv tsab xov xwm ntxaws ntxaws no,SAKYSTEELpiav qhia txogQhov sib txawv tseem ceeb ntawm 15-7PH thiab 17-4PH stainless hlau, pab cov engineers, cov neeg tsim khoom, thiab cov thawj coj yuav khoom xaiv cov khoom siv tsim nyog tshaj plaws rau lawv cov kev xav tau tshwj xeeb.
1. Kev Taw Qhia Txog Cov Hlau Stainless Uas Ua Rau Nag Los Thiab Ua Rau Ruaj Khoov
Cov hlau tsis xeb uas ua kom nag lossis daus (PH) tawv ua tiav lawv lub zog los ntawm ob kauj ruam:
-
Kev kho cov kua (annealing)los tsim ib qho qauv sib xws.
-
Kev laus (ua kom tawv thaum nag los)los tsim cov khoom me me uas thaiv kev txav mus los, ua rau muaj zog thiab tawv dua.
Cov txheej txheem no tso cai rau PH stainless hlau kom ua tiavlub zog kho tshuab siab duadua li cov qib austenitic txheem (xws li 304 lossis 316), thaum tswj hwmzoo tiv thaiv corrosionthiabkev hloov pauv ntawm kev tsim khoom.
Ob leeg15-7PHthiab17-4PHkoom nrog tsev neeg no - tab sis lawv cov ntsiab lus alloying thiab cov txheej txheem txhawb zog yog txawv.
2. Kev Sib Piv Txog Cov Tshuaj Lom Zem
| Khoom | 15-7PH (UNS S17700) | 17-4PH (UNS S17400) |
|---|---|---|
| Chromium (Cr) | 14.0 – 16.0% | 15.0 – 17.5% |
| Nickel (Ni) | 6.5 – 7.8% | 3.0 – 5.0% |
| Txhuas (Al) | 0.75 – 1.5% | — |
| Tooj liab (Cu) | — | 3.0 – 5.0% |
| Cov pa roj carbon (C) | ≤ 0.09% | ≤ 0.07% |
| Manganese (Mn) | ≤ 1.0% | ≤ 1.0% |
| Silicon (Si) | ≤ 1.0% | ≤ 1.0% |
| Phosphorus (P) | ≤ 0.04% | ≤ 0.04% |
| Sulfur (S) | ≤ 0.03% | ≤ 0.03% |
| Hlau (Fe) | Qhov Nyiaj Tshuav | Qhov Nyiaj Tshuav |
Qhov Txawv Tseem Ceeb:
-
15-7PHsivtxhuasua nws lub ntsiab lus tseem ceeb ntawm kev ua kom cov dej nag khov kho.
-
17-4PHsivtooj liabua nws lub zog ntxiv.
Qhov sib txawv no ua rau muaj kev sib txawvcov qauv me me, kev coj cwj pwm laus, thiabcov yam ntxwv ntawm kev ua tau zoonruab nrab ntawm ob lub alloys.
3. Qhov Sib Txawv ntawm Metallurgical
3.1 15-7PH: Aluminium-Hardened Martensitic Alloy
15-7PH tsim muaj zog heev los ntawmKev sib xyaw ua ke ntawm Ni₃Al (cov sib xyaw ua ke ntawm nickel-aluminium)thaum lub sijhawm laus. Nws hloov pauv los ntawm ib qhoausteniticrau ib qhomartensiticqauv tom qab ua haujlwm txias thiab kho cua sov.
Lub tshuab ua los ntawm txhuas no muab cov dej nag los ntawmmuaj zog thiab tawv heevnrog kev tiv thaiv corrosion zoo.
3.2 17-4PH: Tooj Liab-Tawv Martensitic Alloy
17-4PH tau txais kev txhawb zog los ntawmcov av nplua nuj tooj liab zootsim thaum lub sijhawm laus. Cov hlau seemmartensitictom qab kev kho cov tshuaj thiab kev laus, thiab nws paub txog nwszoo heev weldability thiab yooj yim ntawm kev ua tiav.
Txawm hais tias nws muaj zog tshaj plaws qis dua me ntsis dua li 15-7PH, nws muabzoo dua qub corrosion tsis kamthiabkev ua tau zoo dua.
4. Kev Sib Piv Txog Cov Khoom Siv Kho Tshuab
| Vaj tse | 15-7PH | 17-4PH |
|---|---|---|
| Lub Zog Tawm (MPa) | 1100–1300 | 1000–1200 |
| Lub zog Tensile (MPa) | 1250–1450 | 1100–1300 |
| Kev ntev (%) | 6–10 | 10–18 |
| Qhov nyuaj (HRC) | 42–46 | 38–44 |
| Qhov Ceev (g/cm³) | 7.8 | 7.75 |
Kev Txheeb Xyuas:
15-7PH cov kev pabcuamlub zog tensile siab dua thiab qhov nyuaj, thaum 17-4PH muabzoo dua ductility thiab cuam tshuam toughnessOb qho tib si tuaj yeem kho tau los ntawm kev kho cua sov kom haum rau cov kev xav tau tshwj xeeb.
5. Kev Tiv Thaiv Kev Xeb
Ob qho hlau sib xyaw ua ke no tiv taus qhov xeb hauv huab cua, cov kua qaub me me, thiab cov chaw ua haujlwm zoo dua li cov hlau carbon lossis cov hlau sib xyaw tsawg. Txawm li cas los xij:
-
17-4PHmuajkev tiv thaiv corrosion zoo dua me ntsis, ua tsaug rau nws cov chromium thiab tooj liab ntau dua. Nws ua tau zoo hauv marine thiab chloride ib puag ncig yog tias passivated kom zoo.
-
15-7PHkuj tseem tiv taus xeb tab sis tej zaum yuav qhia taukev khawb avnyob rau hauv cov xwm txheej chloride hnyav. Nws yog qhov zoo tshaj plaws rau cov chaw muaj corrosive nruab nrab uas lub zog yog qhov tseem ceeb.
6. Kev Sib Txawv ntawm Kev Kho Mob Kub
6.1 15-7PH
-
Kev daws teeb meem Anneal (Zoo li cas A):1038°C rau 1 teev, cua txias.
-
Kev Hloov Pauv Mus Rau Martensite (Tej Yam TH1050):Ua haujlwm txias ua raws li cua sov ntawm 565 ° C rau 1 teev.
-
Kev Laus (Mob RH950):510°C rau 4 teev, cua txias.
Cov txheej txheem kho mob no tsim cov qauv martensitic muaj zog heev.
6.2 17-4PH
-
Kev Kho Mob:1040 ° C rau 30-60 feeb, cua txias.
-
Cov Xwm Txheej Kev Laus:480°C (H900), 550°C (H1025), 580°C (H1075), lossis 620°C (H1150).
Cov kub sib txawv ntawm cov laus tso cai rau cov neeg tsim qauv komtxhim kho lub zog thiab toughnessnyob ntawm seb xav tau kev pabcuam li cas.
7. Kev Tsim Khoom thiab Kev Siv Tshuab
| Vaj tse | 15-7PH | 17-4PH |
|---|---|---|
| Kev siv tshuab tau | Zoo nyob rau hauv annealed mob | Zoo heev nyob rau hauv cov xwm txheej kho nrog cov tshuaj |
| Kev ua tau zoo | Zoo heev ua ntej laus | Nruab nrab |
| Kev vuam tau | Zoo nrog kev ceev faj | Zoo heev |
| Qhov Chaw Tiav | Zoo heev | Zoo heev |
15-7PHyooj yim dua rau kev tsim nyob rau hauv lub xeev annealed ua ntej laus tab sis ua nyuaj tom qab kev kho cua sov.
17-4PH, ntawm qhov tod tes, nws zam txim ntau dua thaum lub sijhawm machining thiab welding, ua rau nws yog qhov kev xaiv nrov rau cov khoom nyuaj lossis tuab.
8. Kev Tiv Thaiv Kub
| Vaj tse | 15-7PH | 17-4PH |
|---|---|---|
| Kub Tshaj Plaws rau Kev Pabcuam | 550°C (1020°F) | 315°C (600°F) |
| Kev Khaws Cia Lub Zog Thaum Kub Siab | Zoo heev | Nruab nrab |
| Kev Nthuav Dav Kub (µm/m°C) | 10.9 | 10.8 |
15-7PHkhaws nws lub zog zoo dua ntawm qhov kub siab, thaum17-4PHfeem ntau tsuas yog txwv rau cov ntawv thov hauv qab 315 ° C vim yog kev laus dhau thiab poob lub zog.
9. Kev Sib Piv Cov Ntawv Thov
Cov Ntawv Thov Hlau Stainless 15-7PH
-
Cov khoom siv dav hlau(cov caij nplooj ntoos hlav, lub bellows, diaphragms)
-
Cov hlab ntsha siabthiab cov li qub
-
Cov khoom siv tshuaj lom neeg
-
Cov khoom siv kho tshuab precision
-
Cov Springs thiab cov fastenersxav tau lub zog qaug zog siab
Cov Ntawv Thov Hlau Stainless 17-4PH
-
Cov ncej twj tso kua mis thiab cov impellers
-
Cov khoom siv turbine
-
Cov khoom siv hluav taws xob thiab nuclear
-
Cov khoom siv hauv dej hiav txwv
-
Lub cev valve, bolts, thiab iav
Kev Txheeb Xyuas:
Yog tias daim ntawv thov xav taulub zog siab tshaj plaws thiab kev ua haujlwm kub siab, xaiv15-7PH.
If kev tiv thaiv corrosion, toughness, thiab weldabilitytseem ceeb dua,17-4PHyog qhov kev xaiv zoo dua.
10. Cov qauv me me thiab cov txheej txheem ua kom tawv
| Feature | 15-7PH | 17-4PH |
|---|---|---|
| Lub Tswv Yim Txhawb Zog | Ni₃Al (Aluminium precipitates) | Cov dej nag nplua nuj Cu |
| Theem tom qab Kev Laus | Martensite + Cov dej nag | Martensite + Cov dej nag |
| Kev Ruaj Ntseg ntawm Microstructure | Ruaj khov heev txog li 550 ° C | Ruaj khov txog li 315 ° C |
| Kev laus rhiab heev | Ntau yam nqaim | Ntau yam dav, yooj yim dua los tswj |
Ni₃Al theem hauv 15-7PH muabkev ruaj khov siab tshaj plaws, thaum cov Cu-nplua nuj precipitates hauv 17-4PH muabzoo dua weldability thiab toughness.
11. Kev Txheeb Xyuas Kev Ua Tau Zoo
| Feature | 15-7PH | 17-4PH |
|---|---|---|
| Lub zog | Siab dua | Siab |
| Qhov nyuaj | Siab dua | Nruab nrab |
| Kev yoog tau | Nruab nrab | Zoo dua |
| Kev Tiv Thaiv Kev Xeb | Zoo | Zoo heev |
| Kev Ua Haujlwm Kub Siab | Zoo heev | Txwv |
| Kev siv tshuab tau | Nruab nrab | Zoo dua |
| Kev vuam tau | Ncaj ncees | Zoo heev |
| Kev Tiv Thaiv Kev Qaug Zog | Zoo heev | Zoo |
| Tus nqi | Siab dua me ntsis | Qis dua me ntsis |
Xaus lus:
15-7PH yog qhov zoo tshaj plaws raulub zog thiab kev tiv taus cua sov, thaum 17-4PH ua tau zoo heevkev sib txuas, kev tawv, thiab kev tiv thaiv corrosion.
12. Xaiv ntawm 15-7PH thiab 17-4PH
Yuav xaiv qib kom raug, xav txog cov hauv qab no:
| Qhov Yuav Tsum Tau Ua | Cov Khoom Siv Pom Zoo |
|---|---|
| Lub zog siab tshaj plaws thiab qhov nyuaj | 15-7PH |
| Kev tiv thaiv xeb zoo heev | 17-4PH |
| Kev ruaj khov kub siab (txog li 550 ° C) | 15-7PH |
| Zoo dua weldability | 17-4PH |
| Aerospace thiab precision qhov chaw | 15-7PH |
| Cov khoom siv hauv dej hiav txwv thiab kev lag luam | 17-4PH |
Cov kws ua haujlwm feem ntau xaiv15-7PHthaum lub design xav taumuaj zog heev thiab tsawg kawg nkaus deformation, thiab17-4PHthaum twgyooj yim tsim thiab tiv taus corrosionyog cov tseem ceeb tshaj plaws.
13. Tus nqi thiab muaj
Ob qho khoom siv muaj nyob rau hauv ntau hom ntawv - puag ncig bar, phaj, hlau, thiab strip.
-
17-4PHfeem ntau yogpheej yig duathiab dav stocked vim nws nrov nyob rau hauv industrial daim ntawv thov.
-
15-7PH, thaum kim dua me ntsis, nyiam dua hauvkev tsav dav hlauthiabkev tiv thaivcov kev lag luam rau nws qhov sib piv ntawm lub zog rau qhov hnyav.
14. Piv txwv tiag tiag: Kev siv rau lub caij nplooj ntoos hlav aerospace
Ib lub tuam txhab tsim khoom siv dav hlau piv ob qho tib si rau kev siv lub caij nplooj ntoos hlav kub siab:
-
17-4PHcov caij nplooj ntoos hlav pib so tom qab raug tshav kub tshaj 400 ° C.
-
15-7PHcov springs khaws cia tag nrho cov peev xwm thauj khoom txog li 520 ° C nrog qhov tsawg kawg nkaus creep deformation.
Yog li ntawd, 15-7PH tau raug xaiv rau qhov kev tsim kawg, ua kom ntseeg tau tias kev pabcuam mus sij hawm ntev.
15. Kev Tswj Xyuas Zoo thiab Kev Muab Khoom Los Ntawm SAKYSTEEL
At SAKYSTEEL, peb tsim khoom thiab muab ob qho tib si15-7PHthiabCov hlau tsis xeb 17-4PHnyob rau hauv kev tswj hwm zoo nruj.
Tag nrho cov ntaub ntawv muaj nrog:
-
Ua raws li ASTM A693 / AMS 5520 / AMS 5659
-
EN 10204 3.1 / 3.2 daim ntawv pov thawj
-
Kev Txheeb Xyuas Cov Khoom Siv Zoo (PMI)
-
Kev tshuaj xyuas ultrasonic thiab nto
-
Cov kev xaiv kho cua sov tshwj xeeb
(Lub logo SAKYSTEEL)
Peb cov chaw ua haujlwm tau nruab nrog kev txiav, txhuam, thiab ntim khoom kom ua tau raws li cov kev xav tau xa tawm thoob ntiaj teb.
16. Cov Khoom Siv SAKYSTEEL
-
Cov Tuav thiab Cov Qws Sib Hloov:Txij li 6 hli mus txog 350 hli
-
Cov Phaj & Cov Ntawv:Thickness 1 hli txog 100 hli
-
Hlau & Sawb:Rau cov caij nplooj ntoos hlav thiab cov khoom siv precision
-
Kev Cais thiab Cov Nplhaib:Kev cai qhov ntev rau kev siv aerospace thiab oilfield
SAKYSTEEL ua kom muaj kev xa khoom sai, zoo tas mus li, thiab kev txhawb nqa los ntawm cov kws tshaj lij.
17. Daim Ntawv Pov Thawj Kev Lag Luam
SAKYSTEEL cov khoom siv hlau tsis xeb ua tau raws li lossis tshaj:
-
Cov qauv AMS, ASTM, thiab ASME
-
Ua raws li NACE MR0175 / ISO 15156
-
Cov lus qhia txog aerospace thiab kev tiv thaiv
Txhua yam khoom raug kuaj thiab ntawv pov thawj rau kev ua raws li tshuaj lom neeg, tshuab, thiab hlau.
18. Cov Lus Qhia Tseem Ceeb: 15-7PH piv rau 17-4PH
| Qhov Sib Piv | 15-7PH | 17-4PH |
|---|---|---|
| Cov Khoom Siv Kho Kom Ruaj Khoov | Aluminium | Tooj liab |
| Lub zog | Siab dua | Qis dua me ntsis |
| Kev Tiv Thaiv Kev Xeb | Zoo | Zoo dua |
| Kev Txwv Kub | 550°C | 315°C |
| Kev vuam tau | Ncaj ncees | Zoo heev |
| Tus nqi | Siab dua | Qis dua |
| Kev Siv Feem Ntau | Kev Ua Haujlwm Hauv Huab Cua, Caij Nplooj Ntoos Hlav, Cov Li Qub | Twj Tso Kua Mis, Cov Qws, Cov Khoom Siv Marine |
Hauv luv luv:
-
Xaiv15-7PHthaum twglub zog thiab kev tiv taus kubyog qhov tseem ceeb.
-
Xaiv17-4PHthaum twgyooj yim ntawm kev tsim khoom thiab kev tiv thaiv corrosiontseem ceeb dua.
19. Xaus Lus
Ob leeg15-7PHthiabCov hlau tsis xeb 17-4PHyog cov ntaub ntawv zoo tshaj plaws nrog cov ntaub ntawv pov thawj thoob plaws ntau yam kev lag luam.
15-7PHcov kev pab cuammuaj zog dua, tiv taus qaug zog zoo dua, thiab ua tau zoo dua ntawm qhov kub siab dua, thaum17-4PHmuabzoo heev weldability, corrosion tsis kam, thiab kev txuag nyiaj.
Thaum tau los ntawm tus neeg muag khoom uas ntseeg siab xws liSAKYSTEEL, ob qib muab kev ntseeg siab zoo tshaj plaws, kev taug qab tau, thiab qhov zoo sib xws - xyuas kom meej tias koj cov khoom ua haujlwm raws li tsim nyob rau hauv cov xwm txheej nyuaj tshaj plaws.
Lub sijhawm tshaj tawm: Lub Kaum Hli-29-2025