Kev piav qhia

SS 409 phaj hlau yog 12 feem pua chromium, titanium stabilized ferritic stainless hlau. Nws muaj kev ncaj ncees tiv thaiv corrosion thiab oxidation ntawm qhov kub thiab txias. Nyob rau hauv cov xwm txheej annealed SS 409 phaj hlau yog ductile, tsis ua hauj lwm harden thiab tuaj yeem tsim siv ntau hom yob txoj kev, khoov lossis me ntsis nias / stamping ua haujlwm.

SS 409 phaj hlau yog cov pa roj carbon tsawg, dual stabilized (titanium thiab niobium) ferritic stainless hlau uas muaj 18 feem pua chromium. SS 409 phaj hlau muaj qhov zoo corrosion kuj nyob rau hauv ib puag ncig corrosive ib puag ncig thiab zoo oxidization thiab creep kuj ntawm qhov kub thiab txias.

Machining no alloy tsim tawv, draggy chips nrog hnyav build-up. Thaum cov hlau no tuaj yeem ua rau hauv qhov mob annealed, nws zoo li ua tau zoo dua hauv qhov txias los yog kho cua sov.

ASTM A240 Stainless Hlau 409 Cov Khoom Siv Tshuaj

Qib	C	Ni	Si	S	Mn	P	Cr	Ti
SIB 409	min.	–	–	–	–	–	–	10.5	6x C
max.	0.08	0.5	1.00	0.045	1.00	0.045	11.75	0.75

Tej kev siv

Ob leeg 409 thiab 1.4509 muaj kev tiv thaiv corrosion zoo ntawm qhov kub siab tshaj li cov qauv ferritics thiab yog siv tau zoo tshaj plaws nyob rau hauv ib puag ncig corrosive me me uas tiv thaiv qhov ntsuas kub ntawm qhov nruab nrab. Cov qib no tau tsim thawj zaug rau kev lag luam tsheb tab sis txij li tau siv rau hauv lwm cov ntawv thov:

• Exhaust systems thiab Catalytic converters.

• Hluav taws xob faib lub thawv, npog thiab turnstiles.

• Solar water systems thiab geyers.

Cov khoom siv kho tshuab Raws li ASTM A240 thiab EN 10088-2 Qhov siab tshaj plaws pom zoo kev pabcuam kub

General corrosion kuj 409 yog qhov muaj zog corrosion ntau dua li cov hlau me me lossis qis alloy corrosion resistant steels. Nws muaj kev tiv thaiv corrosion tsawg dua li qhov siab dua chrome txheem ferritics. Nws yog qhov zoo tshaj plaws nyob rau hauv me me corrosive tej yam kev mob uas aesthetics tsis yog ib qho tseem ceeb yuav tsum tau. Lub teeb nto patina lossis discoloration tuaj yeem tsim thiab qhov no yuav, rau qee qhov, retard ntxiv corrosion.

Thermal processing and fabrication Annealing Annealing (softening) yog ua tiav los ntawm cua sov mus rau qhov ntsuas kub hauv qab no ntawm tus nqi ntawm 3.5minutes / mm tom qab cua quenching.

409: 820-920⁰C 1.4509: 920-1,020⁰C

Kev ntxhov siab

Kev ntxhov siab tom qab vuam tsis yog feem ntau yuav tsum tau. Yog tias qhov no tsim nyog, qhov kub ntawm 200ºC thiab 300ºC raug pom zoo rau 60 feeb ib 2.5 hli.

Kub-ua haujlwm

Thaum pib forging thiab nias kub ntau yam: 950ºC txog 1050ºC Ua tiav kub hauv qab 750ºC. Tsis txhob ncua sij hawm tuav siab tshaj 1000ºC raws li kev loj hlob ntawm cov qoob loo ntau dhau los ua rau txo cov ductility.

Nco tseg: Txhua qhov kev ua haujlwm kub kub yuav tsum tau ua raws li annealing thiab tom qab ntawd pickling thiab passivation los kho cov khoom siv kho tshuab thiab corrosion kuj.

Ua haujlwm txias

409 thiab 1.4509 muaj cov yam ntxwv ntawm kev ncaj ncees nrog cov khoom siv kho kom zoo. Lawv ductility tso cai rau lawv tsim los ntawm kev khoov thiab sib sib zog nqus kos duab. Lawv tsis ua hauj lwm tseem ceeb hardening thaum txias tsim.

Vuam

409 thiab 1.4509 yog qhov yooj yim rau cov qoob loo loj hlob hauv thaj chaw muaj kev cuam tshuam los ntawm tshav kub. Yog li ntawd, lub tensile, qaug zog thiab toughness nyob rau hauv lub welded mob yog kuj tsis zoo. Yog li lawv yuav tsum tsis txhob siv rau cov ntawv thov qhov twg tensile lossis dynamic loading yuav tau ntsib.

stainless steel plate 63013