1.4919 Stainless hlau yog dab tsi?

1.4919 stainless hlau, feem ntau hu ua 316H lossis UNS S31609, yog siab -carbon variant ntawm tus qauv 316 molybdenum-alloyed austenitic stainless hlau. Lub npe "H" qhia nws qhov tsim nyog rau kev pabcuam kub siab, qhov uas muaj cov pa roj carbon ntau ntxiv ua kom muaj zog ntxiv thiab kev ntxhov siab rupture kuj. Nws yog dav siv nyob rau hauv siab -kub siab hlab ntsha, tshav kub exchangers, superheaters, thiab lwm yam Cheebtsam nyob rau hauv lub zog tsim, tshuaj ua, thiab petrochemical industries.

 

Qhov siab no -kub molybdenum- qib qib siab yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4919
ASTM / AISI (USA)	316H, UA 31609
JIS (Nyiv)	SUS 316 H
KS (Korea)	STS 316 H

Nws cov ntsiab lus carbon yog tswj tau nyob rau hauv ntau dua los txhawb siab - qhov kub thiab txias, thaum molybdenum txhim kho corrosion kuj.

Lub ntsiab	C	Si	Mn	P	S	Cr	Ni	Mo
Cov ntsiab lus (%)	0.04 - 0.10	Tsawg dua lossis sib npaug li 0.75	Tsawg dua lossis sib npaug li 2.0	Tsawg dua lossis sib npaug li 0.045	Tsawg dua los yog sib npaug li 0.03	16.0 - 18.0	10.0 - 14.0	2.0 - 3.0

Nws muaj cov khoom zoo txhua yam ntawm ob qho tib si ambient thiab siab kub.

Khoom	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HB)
Tus nqi	Ntau dua lossis sib npaug li 205 MPa	500 - 750 MPa	Ntau dua lossis sib npaug li 40%	Tsawg dua lossis sib npaug li 215

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4919 / 316H

Txhim kho qhov kub siab -Temperature Strength:Kev tswj hwm cov ntsiab lus siab dua muab kev txhim kho kev nkag siab thiab kev ntxhov siab tawg lub zog ntawm qhov kub siab tshaj 500℃piv rau tus qauv 316 lossis 316L.

Superior Corrosion Resistance:Khaws qhov zoo tshaj plaws corrosion kuj ntawm 316 tsev neeg, tshwj xeeb tshaj yog tiv thaiv chlorides thiab acids, ua rau nws haum rau siab - kub corrosive ib puag ncig.

Zoo Oxidation Resistance:Ua kom tsis kam mus rau qhov ntsuas thiab oxidation hauv kev pabcuam txuas mus txog li 900 degree.

 

Cov ntawv thov tseem ceeb:

Kev tsim hluav taws xob:Superheater thiab reheater tubing, boiler Cheebtsam, thiab siab -kub headers nyob rau hauv fossil thiab nuclear nroj tsuag.

Petrochemical & Tshuaj:High -kub reactors, reactor tubes, cracking furnace tubing, thiab txheej txheem piping nyob rau hauv corrosive ib puag ncig.

Thaum tshav kub kub Exchangers:Plhaub-thiab-tube heat exchangers ua haujlwm ntawm qhov kub thiab txias siab.

Lub nkoj siab:Cheebtsam tsim raws li ASME cov lej rau kev sib xyaw ua ke siab -kub thiab kev pabcuam corrosive.

 

Dab tsi yog qhov txawv ntawm 316H (1.4919) thiab 316L (1.4404)?
Qhov sib txawv tseem ceeb yog cov ntsiab lus carbon thiab cov kev pab cuam npaj siab . 316H muaj kev tswj cov pa roj carbon ntau ntawm 0.04-0.10% kom ntseeg tau tias siab -kub creep zog, thaum 316L muaj cov ntsiab lus siab tshaj plaws ntawm 0.03% los tiv thaiv rhiab heev thiab ua kom zoo heev weldability thiab intergranular corrosion resistance. 316H yog siv rau qhov kub thiab txias 16 structural 6, yog nyiam rau welded fabrications ua hauj lwm nyob rau hauv qis kub los yog nyob rau hauv heev corrosive ib puag ncig.

 

Vim li cas 316H nyiam tshaj 304H hauv qee qhov kev siv siab -kub?
316H muaj molybdenum (2-3%), uas 304H tsis muaj. Qhov sib ntxiv ntawm molybdenum no muab kev tiv thaiv zoo dua rau pitting thiab crevice corrosion hauv chloride-muaj ib puag ncig, txawm tias qhov kub siab. Yog li ntawd, nyob rau hauv siab -kub daim ntaub ntawv uas cov txheej txheem ib puag ncig muaj chlorides, acids, los yog lwm yam corrosive media, 316H muaj ob qhov yuav tsum tau high - kub lub zog thiab superior corrosion kuj piv rau 304H.

 

Nrhiav kev ntseeg siab ntawm 1.4919 / 316H Stainless Hlau?
GNEE Steel muab siab- kub qib 316H (1.4919) stainless hlau nyob rau hauv tubular, phaj, thiab bar cov ntaub ntawv, haum rau xav tau daim ntaub ntawv nyob rau hauv lub hwj chim, tshuaj, thiab petrochemical industries. Peb muab tag nrho cov ntaub ntawv traceability thiab ntawv pov thawj rau cov qauv tsim. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.