Txhua yam koj yuav tsum paub txog daim ntawv thov ntawm 316L thiab 904L stainless hlau hauv watches.
Txhua yam koj yuav tsum paub txog daim ntawv thov ntawm 316L thiab 904L stainless hlau hauv watches
316L stainless hlau yog cov khoom siv hauv kev lag luam saib, muab kev tiv thaiv zoo heev (tawm hws thiab dej hiav txwv) thiab tus nqi siab -kev ua tau zoo, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ntau lub npe . 904L stainless hlau, tshwj xeeb tshaj yog paub rau nws siv los ntawm Rolex, muaj ntau dua nickel thiab molybdenum cov ntsiab lus, uas ua rau muaj zog corrosion kuj nyob rau hauv ib puag ncig zoo heev ( dej hiav txwv) thiab ci ntsa iab ntau dua. Txawm li cas los xij, nws kim dua thiab nyuaj dua rau kev ua haujlwm. Yog tias koj tab tom nrhiav kev zoo siab rau kev hnav txhua hnub, koj tuaj yeem xaiv 316L; yog tias koj xav tau kev ua haujlwm hnyav thiab sab saum toj -tier nto tiav xav tau rau kev dhia dej, ces 904L yog qhov kev xaiv zoo dua.
Dab tsi yog "L" hauv 316L steel sawv rau?
Dab tsi yog "L" hauv 316L steel sawv rau?
Tsawg
Piv txwv li, "L" hauv 316L stainless hlau sawv cev rau "tsawg," qhia tias cov hlau no muaj cov ntsiab lus qis heev. Piv rau 316 stainless hlau, 316L stainless hlau yog resistant rau vuam corrosion thiab tuaj yeem tiv taus kub dua. Yog li ntawd, 316L stainless hlau feem ntau yog siv nyob rau hauv marine thiab tsim engineering tej yaam num.
904L steel yog dab tsi?
904L stainless hlau yog siab - alloy austenitic stainless hlau paub txog nws qhov tshwj xeeb corrosion kuj. Nws ua tau zoo heev ntawm kev tiv thaiv pitting corrosion, crevice corrosion, thiab kev nyuaj siab corrosion cracking, tshwj xeeb tshaj yog nyob rau hauv chloride - nplua nuj ib puag ncig xws li dej hiav txwv. Nws cov ntsiab lus tsis tshua muaj carbon tsawg txo cov kev cuam tshuam ntawm intergranular thaum vuam, yog li ua kom muaj kev ncaj ncees.
Nws yog austenitic stainless hlau nrog zoo formability thiab weldability. Nws yog piv rau 316L stainless hlau tab sis kim dua vim nws cov khoom thiab muaj pes tsawg leeg.
Dab tsi yog 316L stainless hlau?
316L stainless hlau yog tsawg- carbon austenitic stainless hlau nrog cov ntsiab lus carbon feem ntau tsis pub tshaj 0.03%. Nws cov khoom tseem ceeb suav nrog chromium (16-18%), npib tsib xee (10%), thiab ib qho me me ntawm molybdenum (2-3%), uas muab 316L zoo corrosion kuj, ua rau nws siv dav hauv kev lag luam xws li tshuaj lom neeg, roj av, thiab ntawv tsim. Vim nws cov ntsiab lus tsis tshua muaj carbon, 316L tuav zoo corrosion kuj tom qab vuam, ua rau nws tsim nyog rau kev tsim welded qhov chaw thiab khoom siv.
Kev sib piv ntawm cov tshuaj muaj pes tsawg leeg ntawm 904L thiab 316L Stainless hlau
| Element | 316L | 904L |
|---|---|---|
| Chromium (Cr) | 16–18% | 19–23% |
| Nickel (Ni) | 10–14% | 23–28% |
| Molybdenum (hli) | 2–3% | 4–5% |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.03% | Tsawg dua lossis sib npaug li 0.02% |
| Copper (Cu) | - | 1–2% |
| Nitrogen | me me | me me |
| Hlau | Tshuav | Tshuav |
Corrosion Resistance
| Hom Corrosion | 316L | 904L |
|---|---|---|
| General Corrosion | Zoo heev | Zoo heev |
| Pitting (chlorides, dej hiav txwv) | Zoo heev | Superior |
| Crevice Corrosion | Siab tsis kam | Ntau dua kuj |
| Sulfuric Acid | pluag | Zoo tshaj - hauv - chav kawm (tooj liab pab) |
| Acetic / organic acids | Zoo | Zoo heev |
| Siab -chloride ib puag ncig | Muaj zog | Heev |
Qhov kawg xaus:
Yog tias corrosion kuj tseem ceeb me ntsis → 316L yog qhov kev xaiv zoo.
Yog hais tias qhov corrosive ib puag ncig yog hnyav, acidic, los yog xav tau zoo heev → 904L yooj yim yeej.
Kev sib piv ntawm Mechanical Properties ntawm 904L thiab 316 Stainless Hlau
| Khoom | 316L | 904L |
|---|---|---|
| Tensile zog | ~ 485 MPa | ~ 490 MPa |
| Yield zog | ~ 170 MPa | ~ 220 MPa |
| Hardness | Zoo sib xws | Siab dua me ntsis |
| Ductility | Zoo heev | Siab heev |
| Toughness | Zoo heev | Zoo heev |
316L Stainless hlau
Muaj pes tsawg leeg: muaj molybdenum, ua rau muaj kev tiv thaiv zoo rau chloride thiab seawater corrosion.
Qhov zoo: Kev tiv thaiv corrosion zoo heev rau kev hnav txhua hnub, tsis tshua muaj kev ua xua, ua haujlwm yooj yim, thiab tus nqi - zoo; nws yog cov khoom siv hauv kev lag luam.
Disadvantages: Tsawg corrosion resistant tshaj 904L stainless hlau nyob rau hauv huab mob.
Cov ntawv thov: Feem ntau siab - kawg thiab txhua hnub saib, muab qhov sib npaug ntawm qhov zoo thiab tus nqi.
904L Stainless hlau
Muaj pes tsawg leeg: ntau dua nickel thiab molybdenum cov ntsiab lus (tseem muaj tooj liab), uas ua rau muaj kev tiv thaiv corrosion, tshwj xeeb tshaj yog tiv thaiv chloride corrosion.
Qhov zoo: Cov luster zoo heev (tso rau siab dua - qib polishing), zoo corrosion kuj nyob rau hauv ib puag ncig hnyav (xws li dej hiav txwv sib sib zog nqus), thiab ruaj khov heev.
Qhov tsis zoo: tus nqi siab dua, kev ua haujlwm nyuaj dua (yuav tsum muaj cov cuab yeej tshwj xeeb), thiab tej zaum yuav overkill nyob rau hauv mob me.
Daim ntaub ntawv: High-kawm dhia dej saib (xws li Rolex Oystersteel), haum rau qhov xav tau ib puag ncig, thiab muab qhov zoo tshaj plaws.
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv stainless hlau. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com