Taw qhia

Qib 304 yog tus qauv "18/8" stainless;nws yog ntau yam thiab feem ntau siv stainless hlau, muaj nyob rau hauv ib tug ntau yam ntawm cov khoom, cov ntaub ntawv thiab finishes tshaj lwm yam.Nws muaj kev sib sau zoo heev thiab vuam yam ntxwv.Qhov sib npaug austenitic qauv ntawm Qib 304 ua rau nws sib sib zog nqus nqus heev yam tsis muaj qhov nruab nrab annealing, uas tau ua rau qib no tseem ceeb hauv kev tsim cov khoom tsis zoo xws li dab dej, hollow-ware thiab saucepans.Rau cov ntawv thov no feem ntau siv tshwj xeeb "304DDQ" (Drawing Zoo) ntau yam.Qib 304 yog yooj yim nres lossis yob tsim rau hauv ntau yam khoom siv rau kev siv hauv kev lag luam, vaj tsev, thiab kev thauj mus los.Qib 304 kuj muaj cov yam ntxwv zoo heev ntawm vuam.Post-weld annealing tsis tas yuav tsum tau thaum vuam nyias ntu.

Qib 304L, qis carbon version ntawm 304, tsis xav tau tom qab vuam annealing thiab yog li siv dav hauv cov khoom siv ntsuas hnyav (dhau li 6 hli).Qib 304H nrog nws cov ntsiab lus carbon siab dua pom daim ntawv thov ntawm qhov kub siab.Cov qauv austenitic kuj muab cov qhab nia zoo heev, txawm tias mus rau qhov kub thiab txias.

Cov khoom tseem ceeb

Cov khoom no tau teev tseg rau cov khoom lag luam tiaj tus (phaj, ntawv thiab coil) hauv ASTM A240 / A240M.Zoo sib xws tab sis tsis tas yuav zoo ib yam khoom yog teev rau lwm yam khoom xws li yeeb nkab thiab bar hauv lawv cov specifications.

Kev sib xyaw

Cov khoom sib xyaw ua ke rau qib 304 stainless hlau tau muab rau hauv rooj 1.

Table 1.Kev sib xyaw ua ke rau 304 qib stainless hlau

Mechanical Properties

Cov khoom siv kho tshuab zoo rau qib 304 stainless hlau tau muab rau hauv rooj 2.

Rooj 2.Mechanical zog ntawm 304 qib stainless hlau

Corrosion Resistance

Zoo heev nyob rau hauv ntau yam atmospheric ib puag ncig thiab ntau corrosive media.Raws li pitting thiab crevice corrosion nyob rau hauv sov chloride ib puag ncig, thiab kev ntxhov siab corrosion cracking saum toj no txog 60 ° C.Pom zoo rau cov dej haus uas muaj txog li 200mg / L chlorides ntawm qhov kub thiab txias, txo kom txog li 150mg / L ntawm 60 ° C.

Thaum tshav kub kub Resistance

Zoo oxidation kuj nyob rau hauv intermittent kev pab rau 870 ° C thiab nyob rau hauv tas mus li kev pab cuam mus rau 925 ° C.Kev siv txuas ntxiv ntawm 304 hauv 425-860 ° C ntau yam tsis pom zoo yog tias tom qab aqueous corrosion kuj tseem ceeb.Qib 304L yog tiv taus ntau dua rau cov nag lossis daus thiab tuaj yeem ua kom sov rau hauv qhov kub thiab txias.

Qib 304H muaj lub zog siab dua ntawm qhov kub siab, yog li feem ntau yog siv rau cov qauv thiab cov ntawv thov siab ntawm qhov kub siab tshaj li 500 ° C thiab txog li 800 ° C.304H yuav rhiab heev nyob rau hauv qhov kub ntawm 425-860 ° C;Qhov no tsis yog teeb meem rau kev siv kub, tab sis yuav ua rau txo qis aqueous corrosion kuj.

Kev kho cua sov

Kev Kho Hniav (Annealing) - Kub rau 1010-1120 ° C thiab txias sai.Cov qib no tsis tuaj yeem ua kom tawv nqaij los ntawm kev kho cua sov.

Vuam

Weldability zoo heev los ntawm tag nrho cov txheej txheem fusion, ob qho tib si nrog thiab tsis muaj cov khoom siv hlau.AS 1554.6 ua ntej tsim nyog vuam ntawm 304 nrog Qib 308 thiab 304L nrog 308L rods lossis electrodes (thiab nrog lawv cov sib npaug siab silicon).Hnyav welded seem hauv Qib 304 yuav xav tau tom qab vuam annealing rau siab tshaj plaws corrosion kuj.Qhov no tsis tas yuav tsum tau rau Qib 304L.Qib 321 kuj tseem siv tau los ua lwm txoj hauv kev rau 304 yog tias yuav tsum tau siv vuam ntu hnyav thiab kev kho cua sov tom qab siv tsis tau.

Daim ntawv thov

Cov ntawv thov ib txwm muaj xws li:

Khoom noj khoom haus, tshwj xeeb tshaj yog nyob rau hauv npias brewing, mis nyuj ua & cawu cub.

Chav ua noj rooj tog zaum, dab dej, troughs, khoom siv thiab khoom siv

Architectural panelling, railings & trim

Cov thawv ntim tshuaj, suav nrog rau kev thauj mus los

Thaum tshav kub kub Exchangers

Woven los yog welded cov ntxaij vab tshaus rau mining, quarrying & dej pom

Threaded fasteners

Springs