1.4509 Stainless hlau yog dab tsi?

1.4509 stainless hlau, feem ntau hu ua 439 lossis UNS S43035, yog titanium-stabilized ferritic stainless hlau tsim los muab kev txhim kho corrosion thiab weldability piv rau cov qauv 430 qib. Nrog nws cov kev txhim kho kev tiv thaiv rau intergranular corrosion thiab zoo formability, nws yog dav siv nyob rau hauv automotive tso systems, tshav kub exchangers, thiab zoo nkauj daim ntaub ntawv uas tus nqi -effectiveness thiab nruab nrab corrosion kuj yog qhov tseem ceeb.

 

Qhov qib ferritic ruaj khov no yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4509
ASTM / AISI (USA)	439, UA S43035
JIS (Nyiv)	SUS 439
KS (Korea)	STS439

Titanium ntxiv rau stabilize cov khoom thiab tiv thaiv rhiab heev thaum vuam.

Lub ntsiab	C	Si	Mn	P	S	Cr	Ti
Cov ntsiab lus (%)	Tsawg dua los yog sib npaug li 0.03	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua lossis sib npaug li 0.04	Tsawg dua los yog sib npaug li 0.03	17.0 - 19.0	0.30 - 1.00

Nws muab zoo ductility thiab nruab nrab lub zog nyob rau hauv lub annealed mob.

Khoom	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HB)
Tus nqi	Ntau dua lossis sib npaug li 240 MPa	430 - 600 MPa	Ntau dua lossis sib npaug li 25%	Tsawg dua los yog sib npaug li 200

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4509 / 439

Zoo Corrosion Resistance nyob rau hauv ib puag ncig me me:Ua tau zoo nyob rau hauv tsev thiab automotive tso ib puag ncig, nrog zoo tiv thaiv intergranular corrosion tshaj unstabilized ferritic qib.

Weldability zoo heev:Lub titanium stabilization txo qis carbide nag lossis daus thaum lub sij hawm vuam, ua rau nws haum rau welded los ua ke yam tsis muaj kev tshaj tawm -weld heat treatment.

Sib nqus thiab nqi-zoo:Muaj zog sib nqus thiab txuag nyiaj ntau dua npib tsib xee- muaj cov qib austenitic.

 

Cov ntawv thov tseem ceeb:

Automotive Exhaust Systems:Mufflers, catalytic converter vaj tsev, tailpipes, thiab tshav kub shields.

Thaum tshav kub kub Exchangers:Cheebtsam hauv automotive thiab HVAC systems.

Kho kom zoo nkauj Trim:Sab hauv thiab sab nrauv architectural ntsiab qhov twg aesthetics thiab nruab nrab corrosion kuj yuav tsum tau.

Cov khoom siv:Lub tshuab ntxuav tais diav sab hauv, qhov cub hauv ob sab phlu, thiab lwm yam khoom siv hauv tsev.

 

439 (1.4509) piv rau 430 (1.4016) stainless hlau li cas?
Qib 439 yog titanium-stabilized version ntawm 430. Qhov sib ntxiv ntawm titanium hauv 439 muab kev tiv thaiv zoo dua rau intergranular corrosion tom qab vuam los yog siab - qhov kub thiab txias, ua rau nws haum rau welded Cheebtsam zoo li cov tshuab tso pa. Thaum ob qho tib si yog ferritic thiab sib nqus, 439 muaj kev txhim kho weldability thiab corrosion kev ua tau zoo nyob rau hauv sensitized tej yam kev mob, whereas 430 tej zaum yuav raug kev txom nyem los ntawm chromium carbide tsim nyob rau hauv lub tshav kub - cuam tshuam cheeb tsam.

 

Puas yog 439 stainless hlau haum rau siab -kev siv kub?
439 tuaj yeem siv rau ntawm qhov kub siab txog li 800℃hauv kev pabcuam cuam tshuam thiab mus txog 750℃hauv kev pabcuam txuas ntxiv, ua tsaug rau nws cov oxidation zoo. Txawm li cas los xij, nws tsis muaj peev xwm ua tau siab li - kub austenitic qib zoo li 309S lossis 310S rau lub sijhawm ntev tshaj li 900℃. Nws yog qhov zoo- haum rau kev siv lub tsheb tso tawm qhov twg qhov kub ib txwm nyob hauv nws qhov kev ua haujlwm.

 

Nrhiav kev ntseeg siab ntawm 1.4509 / 439 Stainless Hlau?
GNEE Steel cov khoom siv tus nqi - zoo thiab weldable 439 (1.4509) ferritic stainless hlau hauv daim ntawv, coil, raj, thiab strip daim ntawv, zoo tagnrho rau kev siv tsheb thiab kev lag luam. Peb muab cov ntaub ntawv pov thawj thiab kev txhawb nqa. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.