Super Stainless Hlau 904L / N08904 Phaj, Tubing, Qws, Forging

Lus piav qhia luv luv:

Qib sib npaug:
UNS N08904
DIN W. Nr.1.4539 ib

Xa email rau peb

Product Detail

Khoom cim npe

Cov khoom muaj

Seamless raj, phaj, pas nrig, forgings, fasteners, yeeb nkab fittings.

Cov qauv tsim

Khoom	ASTM
Bars, strips thiab profiles	ib 479
Phaj, Sheet thiab Sawb	240 Ib., 480
Forged, seamless yeeb nkab fittings	A 403
Forged flanges, forgings	A 182
Seamless raj	A 312

Tshuaj muaj pes tsawg leeg

%	Fe	Cr	Ni	Mo	C	Mn	Si	P	S	Cu
Min	sib npaug	19.0 Nws	23.0 Nws	4.0						1.0
Max	sib npaug	23.0 Nws	28.0 Nws	5.0	0.02 ib	2.00 Nws	1.00 Nws	0.045 ib	0.035 ib	2.0

Lub cev muaj zog

Qhov ntom	8.0g 3
Melting	1300-1390 ℃

904L Khoom Khoom

Vim tias cov ntsiab lus carbon ntawm 904L tsawg heev (0.020% siab tshaj), yuav tsis muaj carbide nag lossis daus nyob rau hauv rooj plaub ntawm kev kho cua sov thiab vuam.Qhov no tshem tawm txoj kev pheej hmoo ntawm intergranular corrosion uas ib txwm tshwm sim tom qab kev kho cua sov thiab vuam.Vim muaj cov ntsiab lus ntawm chromium-nickel-molybdenum siab thiab qhov sib ntxiv ntawm tooj liab, 904L tuaj yeem passivated txawm nyob rau hauv kev txo qhov chaw xws li sulfuric thiab formic acids.Cov ntsiab lus npib tsib xee siab kuj ua rau tus nqi qis dua hauv lub xeev nquag.Nyob rau hauv ntshiab sulfuric acid nyob rau hauv lub concentration ntawm 0 ~ 98%, kev khiav hauj lwm kub ntawm 904L yuav ua tau siab li 40 degrees Celsius.Nyob rau hauv ntshiab phosphoric acid nyob rau hauv lub concentration ntawm 0 ~ 85%, nws corrosion kuj yog heev zoo.Hauv kev lag luam phosphoric acid uas tsim los ntawm cov txheej txheem ntub dej, impurities muaj zog tiv thaiv corrosion.Ntawm tag nrho cov ntau yam phosphoric acids, 904L yog corrosion resistant dua li cov hlau tsis zoo.Nyob rau hauv muaj zog oxidizing nitric acid, 904L muaj kev tiv thaiv corrosion tsawg tshaj li alloyed steel qib uas tsis muaj molybdenum.Hauv hydrochloric acid, kev siv 904L tsuas yog txo qis ntawm 1-2%.nyob rau hauv no concentration ntau.Lub corrosion kuj ntawm 904L yog zoo dua li cov pa stainless hlau.904L steel muaj siab ua haujlwm rau pitting corrosion.Nws tsis kam mus rau crevice corrosion hauv cov tshuaj chloride kuj zoo heev.Lub siab nickel cov ntsiab lus ntawm 904L txo tus nqi ntawm corrosion nyob rau hauv pits thiab crevices.Ordinary austenitic stainless hlau tej zaum yuav raug rau kev ntxhov siab corrosion nyob rau hauv ib qho chaw uas muaj chloride nplua nuj nyob rau hauv qhov kub siab tshaj 60 ° C, thiab qhov rhiab heev no tuaj yeem txo los ntawm kev nce cov ntsiab lus nickel ntawm stainless hlau.Vim yog cov ntsiab lus siab nickel, 904L yog qhov muaj zog heev rau kev ntxhov siab corrosion tawg hauv cov tshuaj chloride, cov ntsiab lus hydroxide thiab hydrogen sulfide nplua nuj ib puag ncig.

904L Cov Khoom Siv Siv Hauv Cheeb Tsam

1.Petroleum, petrochemical khoom, xws li reactors hauv petrochemical khoom, thiab lwm yam.
2. Kev khaws cia thiab cov khoom siv thauj mus los rau sulfuric acid, xws li cov khoom siv hluav taws xob, thiab lwm yam.
3.Lub flue roj desulfurization ntaus ntawv nyob rau hauv lub hwj chim nroj tsuag yog tsuas yog siv nyob rau hauv: lub ntauwd lub cev ntawm lub nqus ntauwd, lub flue, lub shutter, lub internal qhov chaw, cov tshuaj tsuag system, thiab lwm yam.
4.Scrubbers thiab kiv cua hauv cov organic acid kho tshuab.
5.Seawater kho cov cuab yeej, seawater heat exchangers, daim ntawv kev lag luam khoom, sulfuric acid, nitric acid khoom, acid ntau lawm, tshuaj kev lag luam thiab lwm yam chemical khoom, siab hlab ntsha, khoom noj khoom haus.
6. Pharmaceutical nroj tsuag: centrifuges, reactors, thiab lwm yam.
7.Cov khoom noj cog: cov kua txiv hmab txiv ntoo, cov kua txiv hmab txiv ntoo, cov thawv ntsev, cov khoom siv thiab hnav khaub ncaws.
8.904L yog qhov sib piv steel qib rau qhov muaj zog corrosive nruab nrab ntawm dilute sulfuric acid.

Yav dhau los: UNS S31254 / 254SMo Phaj Tube Qws Super Austenitic Stainless Hlau S31254

Tom ntej: Superalloy InconelX-750 / UNS N07750 / AlloyX-750 Seamless Yeeb Nkab, Ntawv, Hlau