Stainless hlau tuaj nyob rau hauv ntau qib, txhua tus engineered los muab cov kev ua tau zoo. Ntawm lawv,440C stainless hlausawv ua ibhigh-carbon, high-chromium martensitic stainless hlaupaub txog nwszoo heev hardness, hnav tsis kam, thiab corrosion kuj. Nws yog dav siv nyob rau hauv high-kev ua tau zoo daim ntawv thov qhov twg ntug tuav, lub zog, thiab durability yog ib qho tseem ceeb.
Peb tshawb nrhiavyam ntxwv, mechanical zog, thiab raug sivntawm 440C stainless hlau. Txawm hais tias koj koom nrog hauv kev tsim qauv, tsim khoom, cuab yeej, lossis kev tsim khoom siv kho mob, tsab xov xwm no yuav muab kev nkag siab zoo rau vim li cas 440C stainless hlau yog qhov kev xaiv nrov rau kev thov.
At sakysteel ua, peb tshwj xeeb hauv kev muab cov khoom zoo-zoo 440C stainless hlau nyob rau hauv ntau hom thiab ntau thiab tsawg, ua tau raws li cov kev xav tau ntawm kev lag luam thoob ntiaj teb. Hu rausakysteel uarau cov kws tshaj lij kev txhawb nqa, txhim khu kev qha khoom, thiab cov khoom siv kho kom haum.
1. Dab tsi yog 440C Stainless Hlau?
440C stainless hlauyog amartensitic stainless hlau alloynrog qib siab ntawmcarbon thiab chromium. Nws yog ib feem ntawm 400 series thiab yog qib corrosion-resistant tshaj plaws ntawm 440 stainless hlau (440A, 440B, thiab 440C).
Standard Composition ntawm 440C:
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Cov pa roj carbon (C)Yog ': 0.95% - 1.20%
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Chromium (Cr)Yog ': 16.0% - 18.0%
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Manganese (Mn): ≤ 1.0%
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Silicon (Si): ≤ 1.0%
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Molybdenum (hli): Yeem nyob rau hauv ib co versions ntxiv toughness
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Nickel (Ni): Cov nyiaj tau los
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Hlau (Fe): Sib npaug
Qhov sib xyaw no tso cai rau 440C mus txogsiab hardness (txog 60 HRC)thaum tshav kub-kho, thaum tseem muab dlej corrosion kuj.
2. Cov yam ntxwv tseem ceeb ntawm 440C Stainless Hlau
a) Siab hardness thiab muaj zog
Thaum kho cua sov kom zoo, 440C tuaj yeem ua tiavRockwell hardness theem ntawm 58 txog 60 HRC, ua rau nws yog ib qho nyuaj tshaj plaws stainless hlau muaj. Qhov no ua rau nws haum rau:
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Cov cuab yeej txiav
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Cov khoom siv bearing
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Precision qhov chaw
b) Zoo hnav thiab Abrasion Resistance
Vim nws cov ntsiab lus siab carbon,440c uaua qauv qhiazoo heev kuj rau nto hnav, ntug deformation, thiab txhua yam qaug zog - zoo tagnrho rau zawv zawg lossis rotating daim ntaub ntawv.
c) Zoo Corrosion Resistance
Txawm hais tias tsis yog corrosion-resistant li 300 series stainless hlau, 440C ua tau zoo nyob rau hauv me me mus rau nruab nrab corrosive ib puag ncig. Nws tuaj yeem tiv taus:
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Moisture
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Zaub mov acids
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Cov tshuaj me me
Txawm li cas los xij, nws yogtsis pom zoorau kev siv marine lossis high-chloride yam tsis muaj kev kho kom zoo.
d) Sib nqus thiab kub-kho tau
440c yogSib nqusnyob rau hauv txhua yam mob thiab tuaj yeem ua tauhardened los ntawm kev kho cua sov txheem, ua kom yooj yim rau kev hloov kho rau ntau yam kev siv tshuab thiab cov qauv siv.
3. Mechanical Properties ntawm 440C
| Khoom | Tus nqi (Hom, Hardened Condition) |
|---|---|
| Tensile zog | 760 – 1970 MPa |
| Yield zog | 450-1860 MPa |
| Elongation ntawm Break | 10 - 15% |
| Hardness (Rockwell HRC) | 58–60 : kuv |
| Modulus ntawm Elasticity | ~ 200 GPa |
| Qhov ntom | 7.8g / cm3 |
Cov txiaj ntsig no tuaj yeem sib txawv nyob ntawm kev kho cua sov thiab kev tsim khoom.
4. Cov txheej txheem kho cua sov
Kev ua haujlwm ntawm 440C stainless hlau yogzoo heev txhim kho los ntawm kev kho cua sov. Cov txheej txheem feem ntau suav nrog:
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HardeningKub: 1010-1065 ° C (1850-1950 ° F)
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Quenching: Roj los yog cua quench kom harden cov khoom
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Tempering: Feem ntau tempered ntawm 150-370 ° C (300-700 ° F) kom txo brittleness thiab nce toughness
Thaum tshav kub kub kho 440C qhiaMaximum hardness thiab zoo heev mechanical zog, uas yog qhov tseem ceeb rau cov cuab yeej precision thiab txiav ntug.
5. Kev siv ntau yam ntawm 440C Stainless Hlau
Vim nws qhov tshwj xeeb sib npaug ntawm hardness, hnav tsis kam, thiab nruab nrab corrosion kuj, 440C pom nyob rau hauv ntau yam kev thov:
a) Cov cuab yeej txiav
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Cov hniav phais
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Razor hniav
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Muaj riam
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Txiab
b) Bearings thiab Valve Cheebtsam
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Pob bearings
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Valve rooj zaum thiab stems
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Koob cov menyuam bearings
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Pivot pins
c) Aerospace thiab Defense
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Aircraft actuator qhov chaw
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Cov qauv pins
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Cov mos txwv thiab cov phom phom
d) Cov cuab yeej kho mob
440C's biocompatibility thiab muaj peev xwm tswj tau cov npoo ntse ua rau nws haum rau:
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Cov cuab yeej kho hniav
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Cov cuab yeej phais
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Orthopedic implants (tsis tas li)
e) Pwm thiab Tuag Kev Lag Luam
Nws tiv taus hnav ua rau nws haum rau:
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Yas txhaj pwm
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Tsim tuag
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Tooling Cheebtsam
sakysteel uamuaj 440C stainless hlau nyob rau hauv cov ntawv, phaj, pas nrig, thiab tuav rau cov no thiab lwm yam kev siv. Nrog tag nrho traceability thiab kev ruaj ntseg zoo,sakysteel uaua kom muaj kev ua tau zoo rau cov haujlwm tseem ceeb.
6. Kev txwv ntawm 440C Stainless Hlau
Thaum 440C yog cov khoom siv ua haujlwm siab, nws tsis zoo rau txhua qhov xwm txheej:
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Corrosion kuj yog txwvnyob rau hauv marine los yog chloride-nplua nuj ib puag ncig
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Tsawg toughnesspiv rau qib austenitic
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Tej zaum yuav ua nkigntawm high hardness tshwj tsis yog ua tib zoo tempered
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Machining tuaj yeem nyuajnyob rau hauv lub xeev hardened
Rau cov ntawv thov uas xav tau ntau dua ductility lossis corrosion kuj, 316 lossis duplex stainless hlau yuav yog lwm txoj hauv kev zoo dua.
7. Kev xaiv qhov chaw tiav
440C stainless hlau tuaj yeem muab nkag rau hauv ntau qhov chaw tiav, nyob ntawm kev siv kawg:
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Annealed: Kom yooj yim machining thiab sib sau ua ntej hardening
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Hauv av los yog polished: Rau aesthetic los yog haumxeeb precision
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Hardened thiab tempered: Rau cov cuab yeej siv thiab hnav
At sakysteel ua, peb muabcustomized nto finishes thiab qhov ntevrau 440C stainless hlau kom haum cov neeg xav tau kev pab.
8. 440C vs Lwm Cov Hlau Stainless
| Qib | Hardness | Corrosion Resistance | Daim ntawv thov |
|---|---|---|---|
| 304 | Tsawg | Zoo heev | Cov qauv siv dav dav |
| 316 | Tsawg | Superior | Marine, zaub mov, pharma |
| 410 | Nruab nrab | Nruab nrab | Cov cuab yeej yooj yim, fasteners |
| 440c ua | Siab | Nruab nrab | Cov cuab yeej precision, bearings |
440C yognyuaj tshajthiab feem ntauhnav-resistantntawm cov no, tab sis nrog me ntsis qis corrosion kuj.
Xaus
440C stainless hlauyog qhov kev xaiv saum toj kawg nkaus thaumTshwj xeeb hardness, hnav tsis kam, thiab nruab nrab corrosion kujyuav tsum tau. Nws yog dav siv nyob rau hauv kev lag luam xws li aerospace thiab automotive mus rau kev kho mob thiab cuab yeej. Nws muaj peev xwm yuav hardened mus rau qib siab thaum tswj kev tsim nyog corrosion ua rau nws yog ib qho ntawm feem ntauntau yam martensitic stainless hlaumuaj.
Kev nkag siab txog nws cov yam ntxwv tso cai rau cov engineers thiab cov neeg yuav khoom los xaiv cov khoom siv zoo tshaj plaws rau kev siv ntev, kev ua haujlwm siab.
Rau cov khoom zoo 440C stainless hlau nrog cov ntawv pov thawj tag nrho thiab cov kev pabcuam muaj nqis ntxiv xws li kev txiav, polishing, thiab kho cua sov,sakysteel uayog koj tus neeg muag khoom ntseeg siab. Hu rausakysteel uahnub no kom tau txais ib nqe lus los yog sib tham txog koj qhov project xav tau.
Post lub sij hawm: Lub Xya hli ntuj-28-2025