1.4418 Stainless hlau yog dab tsi?
Mar 17, 2026
Tso lus
1.4418 stainless hlau, feem ntau hu ua 17-4PH lossis UNS S17400, yog martensitic nag lossis daus-cov hlau tsis muaj zog uas sib xyaw ua ke siab zog, zoo corrosion kuj, thiab zoo heev toughness. Nws ua tiav nws cov khoom los ntawm cov txheej txheem kev kho cua sov yooj yim uas ua rau cov tooj liab- nplua nuj theem hauv martensitic matrix. Qhov no ua rau nws zoo tagnrho rau aerospace Cheebtsam, tshuaj ua cov khoom, nuclear reactor Cheebtsam, thiab high-strength mechanical qhov chaw uas yuav tsum tau ib tug ua ke ntawm lub zog thiab corrosion kuj.
Cov nag lossis daus no ntau yam - qib hardening yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.
| Txuj | Qib sib npaug |
|---|---|
| EN (Tebchaws Europe) | 1.4418 |
| ASTM / AISI (USA) | 17-4PH, UNS S17400 |
| JIS (Nyiv) | SUS 630 |
| Lub Npe | 17-4 PAB |
Nws muaj xws li tooj liab rau nag lossis daus hardening thiab niobium rau grain refinement thiab carbide stabilization.
| Lub ntsiab | C | Si | Mn | P | S | Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| Cov ntsiab lus (%) | Tsawg dua lossis sib npaug li 0.07 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua los yog sib npaug li 0.03 | 15.0 - 17.5 | 3.0 - 5.0 | 3.0 - 5.0 | 0.15 - 0.45 |
Cov khoom siv kho tshuab sib txawv heev nrog rau kev kho cua sov (xws li, Kev Kho A, H900, H1150).
| Qhov xwm txheej | Yield zog (Rp0.2) | Tensile zog (Rm) | Elongation (A) | Hardness (HRC) |
|---|---|---|---|---|
| Kev daws teeb meem (A) | ~ 550 MPa | ~ 900 MPa | ~ 15% | ~ 32 HRC |
| H900 (480℃hnub nyoog) | ~ 1170 MPa | ~ 1310 MPa | ~ 10% | ~ 44 HRC |
| H1150 (620℃hnub nyoog) | ~ 790 MPa | ~ 1000 MPa | ~ 12% | ~ 33 HRC |
Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4418 / 17-4PH
Siab zog - rau - Qhov hnyav piv:Ua tiav lub zog tensile tshaj 1300 MPa tom qab kev laus, deb tshaj tus qauv austenitic thiab martensitic stainless hlau, tso cai rau lub teeb yuag, siab - qauv tsim.
Zoo Corrosion Resistance:Muaj kev tiv thaiv corrosion zoo ib yam li Hom 304 stainless hlau nyob rau hauv ntau qhov chaw, haum rau nruab nrab corrosive tej yam kev mob xws li marine atmospheres thiab qee cov kev pabcuam tshuaj.
Precipitation Hardening:Nws tuaj yeem siv rau hauv kev daws teeb meem -kho (softer) mob thiab tom qab ntawd muaj hnub nyoog kom ua tiav lub zog siab nrog qhov tsis sib xws tsawg, zoo heev rau cov khoom sib xyaw ua ke.
Zoo Fatigue Properties:Zoo qaug zog lub zog ua rau nws haum rau rotating thiab reciprocating Cheebtsam.
Cov ntawv thov tseem ceeb:
Aerospace:Kev tsaws iav Cheebtsam, turbine hniav, fasteners, actuators, thiab cov khoom siv.
Tshuaj thiab Petrochemical:Valves, twj tso kua mis shafts, fittings, thiab mixers xav tau lub zog thiab nruab nrab corrosion kuj.
Roj & Roj:Cov cuab yeej Downhole, cov khoom siv lub taub hau zoo, cov tshuab tiv thaiv lub tshuab, thiab cov cuab yeej ntsuas vaj tsev.
Kev lag luam Nuclear:Tswj pas nrig mechanisms, valve Cheebtsam, thiab structural qhov chaw.
Kev kho mob:Cov cuab yeej siv phais, kev cog hniav orthopedic, thiab cov cuab yeej kho hniav.
Kev ua zaub mov:Cov cuab yeej xav tau lub zog thiab kev huv.
Kev lag luam ntawv:Cov kws kho mob cov hniav, txiav tuav, thiab hnav cov khoom.
Cov txheej txheem kho cua sov ua haujlwm li cas rau 17-4PH (1.4418)?
Cov txheej txheem suav nrog ob kauj ruam tseem ceeb. Ua ntej, cov khoom siv yogtshuaj khonyob ib ncig ntawm 1040℃thiab txias sai heev (cua cua lossis roj quench), uas ua rau cov mos mos, qis-lub zog, martensitic qauv (Cov Qauv A) uas yooj yim rau tshuab. Qhov thib ob, nws undergoesaging ( nag lossis daus hardening )ntawm qhov kub thiab txias (piv txwv li, 480℃rau H900, 620℃rau H1150). Qhov no ua rau cov tooj liab zoo- nplua nuj precipitates tsim nyob rau hauv martensitic matrix, ua rau kom muaj zog thiab hardness. Qhov sib txawv ntawm kev laus ua kom muaj zog sib txawv-tuaj yeem sib xyaw ua ke: qis qis (H900) muab lub zog siab tshaj plaws, qhov kub nruab nrab (H1025, H1075) muab qhov sib npaug, thiab qhov kub siab dua (H1150) muab qhov zoo tshaj plaws toughness thiab kev ntxhov siab corrosion kuj.
Dab tsi yog qhov kev txiav txim siab machining rau 1.4418 stainless hlau?
Nws yog feem ntau machined nyob rau hauv cov kev daws teeb meem -kho (Txoj Kev A) lub xeev, qhov uas nws muaj ib tug machinability ntsuam xyuas zoo ib yam li hom 304. Tom qab kev laus rau siab zog tej yam kev mob (xws li H900), machining yuav ho nyuaj thiab abrasive, yuav tsum tau harder cov ntaub ntawv (carbide los yog ceramic), txo speeds, thiab hloov tsis. Kev xyaum zoo yog ua haujlwm feem ntau ua ntej kev kho kev laus zaum kawg, tom qab ntawd ua kom tiav yog tias tsim nyog tom qab kev laus. Rau qhov nyuaj, kev ua haujlwm ntxhib hauv qhov xwm txheej A, txo kev ntxhov siab, ua kom tiav, thiab kev laus zaum kawg yuav raug ua haujlwm.
Nrhiav kev ntseeg siab ntawm 1.4418 / 17-4PH Stainless Hlau?
GNEE Steel muab siab- zog 17-4PH (1.4418) stainless hlau nyob rau hauv bar, phaj, forging, thiab hlau cov ntaub ntawv, muaj nyob rau hauv ntau yam cua sov-kho mob kom tau raws li koj cov kev cai tsim. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav, machining, thiab kev kho cua sov. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.
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