1.4404 stainless hlau yeeb nkab muaj pes tsawg leeg

1.4404 stainless hlau yeeb nkab yog ib qho ultra- qis carbon austenitic stainless hlau yeeb nkab (EN txuj), feem ntau hu ua 316L. Los ntawm kev tswj cov ntsiab lus ntawm cov pa roj carbon tsawg dua los yog sib npaug li 0.03%, nws txhim khu kev sib txuas thiab kev tiv thaiv rau intergranular corrosion, ua rau nws tshwj xeeb tshaj yog haum rau chloride, acid (sulfuric acid, acetic acid) thiab ntsev ib puag ncig. Nws yog dav siv nyob rau hauv tshuaj, roj av, marine, kws, thiab zaub mov industries, qhov twg siab corrosion kuj yuav tsum tau.

 

1.4401 stainless hlau yeeb nkab muaj cov ntsiab lus siab carbon, uas tej zaum yuav ua rau intergranular corrosion nyob rau hauv lub tshav kub - cuam tshuam cheeb tsam tom qab vuam . 1.4404 yog ib qho ultra- qis carbon version ntawm no stainless hlau; nws muaj superior weldability thiab tsis xav tau ncej-weld annealing. Nyob rau hauv feem ntau corrosive ib puag ncig, 1.4404 qhia tau hais tias superior kuj.

 

1.4404 stainless hlau yeeb nkab muaj pes tsawg leeg

Cov ntsiab lus carbon tsawg (tsawg dua los yog sib npaug rau 0.030%) ua kom zoo weldability thiab tsis kam mus rau intergranular corrosion.

Lub ntsiab	Cov pa roj carbon (C)	Chromium (Cr)	Nickel (Ni)	Molybdenum (hli)	Nitrogen (N)	Silicon (Si)	Phosphorus (P)
Txheem%	Tsawg dua lossis sib npaug li 0.030	16.50 – 18.50	10.00 – 13.00	2.00 – 2.50	Tsawg dua lossis sib npaug li 0.10	Tsawg dua los yog sib npaug li 1.00	Tsawg dua lossis sib npaug li 0.045

 

1.4404 stainless hlau Mechanical Properties (ntawm Chav Kub)

Ntsuas raws li EN 10216-5 (Seamless) thiab EN 10217-7 (welded).

Khoom	Yam tsawg kawg nkaus
Yield zog (Rp0.2)	Ntau dua lossis sib npaug rau 220 MPa (32,000 psi)
Tensile zog (Rm)	520 - 670 MPa (75,000 - 97,000 psi)
Elongation (A5)	Ntau dua lossis sib npaug li 45%
Kev cuam tshuam lub zog (ISO-V)	Ntau dua lossis sib npaug rau 60 J (ntawm -196 degree)
Hardness (HBW)	Tsawg dua lossis sib npaug li 215

 

1.4404 stainless hlau raj Nto Kho & Tiav

Hom	Kev piav qhia	Daim Ntawv Thov Kev Sib Tham
Pickled & Annealed	Kev kho tshuaj kom tshem tawm cov nplais oxide.	Industrial / Chemical piping
Bright Annealed (BA)	Thaum tshav kub kub- kho nyob rau hauv ib qho pa oxygen- huab cua dawb.	Siab - cov kab purity roj
Satin / txhuam	Mechanically polished (Grit 180-320).	Khoom noj khoom haus & dej haus machinery
Daim iav Polished	High -gloss mechanical polish (Grit 400-600).	Hniav / Cov kav dej huv

 

 

Dab tsi yog qhov corrosion kuj ntawm 1.4404 stainless hlau yeeb nkab?

1.4404 (sib npaug rau 316L) yog ib qho ultra- carbon austenitic stainless hlau yeeb nkab. Vim tias qhov sib ntxiv ntawm kwv yees li 2% -3% txhuas (Mo) thiab cov ntsiab lus nickel siab, nws pom zoo corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv oxide ib puag ncig, acidic ib puag ncig (xws li phosphoric acid thiab acetic acid), thiab marine atmospheres. Nws cov ntsiab lus carbon tsawg dua los yog sib npaug li 0.03%, thiab nws qhia tias tsis muaj kev nyiam rau riam-ntug corrosion tom qab vuam, ua rau nws zoo tagnrho rau cov qauv welded.

 

1.4404 Stainless Hlau Vuam Kev Ua Haujlwm

1.4404 (316L) stainless hlau qhia tau zoo heev weldability thiab yog, qhov tseeb, nyiam rau welded Cheebtsam vim nws cov ntsiab lus carbon tsawg, uas tiv thaiv intergranular corrosion (sensitisation). Nws yog qhov tsim nyog rau txhua txoj hauv kev fusion vuam txheej txheem (TIG, MIG, MMA), feem ntau yuav tsum tsis muaj kev tshaj tawm -weld heat treatment.

 

Dab tsi vuam hlau tuaj yeem siv rau 1.4404 Stainless Hlau yeeb nkab?

Rau vuam 1.4404 (316L) stainless hlau yeeb nkab, siv cov hlau muab tub lim uas phim nws cov qis -carbon, molybdenum- cov kabmob muaj pes tsawg leeg los xyuas kom meej corrosion. Cov khoom ntim ntau tshaj plaws yog ER316L (khoom hlau) lossis E316L / E316LSi (electrode / flux-cored), feem ntau sau npe ua 1.4430 lossis 19 12 3 L, uas muab kev tiv thaiv zoo tshaj hauv chloride ib puag ncig.

 

1.4404 stainless hlau kav puas tuaj yeem siv rau hauv siab - qhov kub thiab txias?

Tau. 1.4404 tuav cov oxidation zoo ntawm qhov kub txog li 450℃. Txawm li cas los xij, nyob rau hauv ib puag ncig tshaj 500 degree, nws lub zog txhua yam txo; Hauv cov xwm txheej zoo li no, nws yuav tsim nyog los txiav txim siab 1.4571 lossis tshwj xeeb siab -kub alloys.

 

1.4404 Stainless Hlau Yeeb Nkab Daim Ntawv Thov

Cov khoom siv hauv hiav txwv, kev tsim kho ntug hiav txwv, cov khoom siv tshuaj fiber ntau thiab cov chiv, cov kav dej tshuaj, cov khoom ntim khoom noj, thiab lwm yam.

 

Vim li cas 1.4404 kim dua 1.4301?

1.4404 (AISI 316L) feem ntau kim dua 1.4301 (AISI 304) feem ntau vim tias nws yog cov khoom siv ntau dua -alloyed, muaj kwv yees li 2-3% molybdenum, uas tsis muaj nyob rau hauv 1.4301. Molybdenum yog ib qho khoom siv kim heev uas txhim kho corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv chloride-nplua nuj (marine) los yog acidic ib puag ncig.

 

 

Thaum xajEN 1.4404 steel yeeb nkabrau kev siv dej hiav txwv lossis tshuaj lom neeg, nco ntsoov qhia qhov ntsuas qhov siab (txoj kab uas hla) thiab seb cov kav dej puas seamless lossis welded. Gnee Steel muab ua tiav EN 10204 3.1 Hoobkas kuaj daim ntawv pov thawj los xyuas kom meej tias koj qhov project ua tau raws li cov qauv kev nyab xeeb siab tshaj plaws thiab ua tiav tag nrho.

 

Tau txais cov lus qhia ceev rau 1.4404 steel kav

 

1.4404 Stainless Hlau Yeeb Nkab Chaw tsim tshuaj paus thiab chaw tsim tshuaj paus

Peb cov kav dej muaj ob daim ntawv pov thawj rau 1.4404/316L, ua tau raws li qhov yuav tsum tau ua hauv ob qho tib si Europe thiab Tebchaws Meskas. Qhov tsawg kawg nkaus molybdenum cov ntsiab lus ntawm 2.0% yog guaranteed, ua kom lub pitting corrosion kuj yuav tsum tau rau koj marine los yog tshuaj tej yaam num.

Kev Ntsuas Kev Ntsuas:
Tsis yog-Kev kuaj kev puas tsuaj: Tag nrho cov kav dej tau txais 100% eddy tam sim no lossis hydrostatic kuaj.

Kev soj ntsuam PMI: Cov ntaub ntawv pov thawj yog ua ntej xa khoom kom tsis txhob sib xyaw.

Kev kuaj Corrosion: Intergranular corrosion testing (ASTM A262 Class E) yog muaj nyob rau ntawm kev thov.

Xaus-rau-End Machining: Gnee muaj kev cai beveling (kawg kho), threaded kawg, thiab precision txiav cov kev pab cuam nrog qhov tseeb ntawm ± 1mm.