1.4539 stainless hlau yeeb nkab tshuaj muaj pes tsawg leeg

1.4539 stainless hlau yeeb nkab(feem ntau hu ua 904L super austenitic stainless hlau yeeb nkab, UNS N08904) yog siab- alloy, qis- carbon austenitic stainless hlau. Nws yog tsim tshwj xeeb rau kev siv nyob rau hauv huab cua corrosive, nthuav tawm zoo heev corrosion kuj nyob rau hauv heev corrosive media uas muaj chlorides, sulfuric acid, thiab phosphoric acid. Piv rau 304 los yog 316L stainless hlau, 1.4539 (904L) zoo daws cov teeb meem ntawm pitting corrosion los ntawm chloride ions thiab corrosion nyob rau hauv hnyav acidic ib puag ncig, ua rau lub neej ntev kev pab cuam thiab txo nqi txij nkawm.

 

Khoom siv 1.4539 (EN X1NiCrMoCu25-20-5) yog sib npaug rau AISI 904L thiab UNS N08904 hauv ASTM cov qauv. Nws feem ntau pom nyob rau hauv ASTM A240 (phaj), A312 (pipe), thiab A276 (bar) qauv. Piv rau 316L, nws pom zoo corrosion kuj nyob rau hauv acidic ib puag ncig.

 

 

1.4539 stainless hlau yeeb nkab Specifications

Cov ntaub ntawv dav dav	Khoom Siv Lub Npe	EN 1.4539 / X1NiCrMoCu25-20-5
	Lub Npe	AISI 904L / UNS N08904
	Manufacturing Standards	ASTM A312, ASTM A213, ASTM A269, EN 10216-5 (SMLS), EN 10217-7 (WLD)
	Hom yeeb nkab	Seamless (SMLS), Welded (ERW, EFW, SAW)
	Xaus kev sib txuas	Plain End, Beveled kawg, Threaded
	Kev Xa Khoom	Tshuaj Annealed thiab Pickled (dawb tiav)
Seamless Yeeb Nkab	Sab nraud Diameter (OD)	6.0mm-530 hli
	Phab ntsa Thickness (WT)	0.5mm-40mm
	Ntev	Ib qho Random (5-7 m), Ob Chav Random (10-12 m)
Welded yeeb nkab	Sab nraud Diameter (OD)	12.7 hli - 1219 hli
	Phab ntsa Thickness (WT)	0.5mm-25 hli
	Ntev	Tsau Length lossis Random Length
Cov qauv	Cov Txheej Txheem Txheej Txheem	Sch 5s, 10s, 40s, 80s, 160s, XXS
	Siv tau Standard	Raws li ANSI B36.19 / B36.10

 

1.4539 stainless hlau seamless yeeb nkab Chemical Composition (%)

Raws li ASTM A312 / EN 10216-5

Element	C	Cr	Ni	Mo	Cu	Mn	Si	P	S	N
Min (%)	-	19.00	23.00	4.00	1.20	-	-	-	-	-
Max (%)	0.020	21.00	28.00	5.00	2.00	2.00	0.70	0.045	0.010	0.15

 

1.4539 stainless hlau Mechanical Properties (ntawm Chav Kub)

Khoom	Yam tsawg kawg nkaus tus nqi (Metric)	Yam tsawg kawg nkaus tus nqi (Imperial)
Tensile zog (Rm)	490-710 MPa	71-103 dr hab
Yield zog (Rp0.2)	Ntau dua lossis sib npaug li 215 MPa	Ntau dua lossis sib npaug li 31 ksi
Yield zog (Rp1.0)	Ntau dua lossis sib npaug li 245 MPa	Ntau dua lossis sib npaug li 35 ksi
Elongation (A5)	Ntau dua lossis sib npaug li 35%	Ntau dua lossis sib npaug li 35%
Hardness (Rockwell B)	Tsawg dua lossis sib npaug li 90 HRB	Tsawg dua lossis sib npaug li 90 HRB
Hardness (Brinell)	Tsawg dua lossis sib npaug rau 192 HBW	Tsawg dua lossis sib npaug rau 192 HBW

 

1.4539 stainless hlau round yeeb nkab Dimensional Tolerances

Raws li ASTM A999 / EN ISO 1127

Feature	Pipe OD Range	Ua siab ntev
Sab nraud Diameter (OD)	1/8 "- 1-1/2" (6mm-48mm)	± 0.40 hli
	1-1/2 "- 4" (48mm-114mm)	± 0.79 hli
	>4" (114 hli)	± 1% ntawm OD
Phab ntsa Thickness (WT)	Txhua Qhov Loj	-12.5% / +15.0%
Kev ncaj	Txhua Qhov Loj	Max 1.5 hli rau ib 'meter'

 

1.4539 Stainless hlau yeeb nkab Corrosion kuj

1.4539 (AISI 904L) stainless hlau yeeb nkab muaj qhov tshwj xeeb corrosion kuj vim nws cov nickel siab (~ 25%), molybdenum (~ 4.5%), thiab cov ntsiab lus tooj liab, tshwj xeeb tsim rau hnyav acidic thiab chloride ib puag ncig. Nws ua tau zoo nyob rau hauv sulfuric thiab phosphoric acid, tiv taus crevice / pitting corrosion, thiab ua tau zoo nyob rau hauv dej hiav txwv sov, tshaj 316L / 304L steels.

 

 

1.4539 Stainless hlau yeeb nkab kho cua sov

1.4539 (904L) stainless hlau yeeb nkab yuav tsum tau tov annealing ntawm 1060-175 degree, ua raws li sai quenching (dej los yog huab cua quenching) kom pom zoo corrosion kuj thiab yaj intermetallic compound theem. Nws tsis tuaj yeem hardened los ntawm kev kho cua sov, tsuas yog los ntawm kev ua haujlwm txias. Kev kho cua sov tom qab vuam feem ntau tsis tsim nyog.

 

1.4539 Stainless Hlau Yeeb Nkab Daim Ntawv Thov

Fertilizer Industry: Phosphoric acid thiab sulfuric acid ntau lawm khoom.

Environmental Engineering: Absorption towers thiab pipelines for flue gas desulfurization (FGD) systems in power plants.

Marine Engineering: Seawater desalination khoom thiab submarine cable armor.

Kev Lag Luam Pharmaceutical: Kev khaws cia thiab cov hlab ntsha rau cov tshuaj corrosive heev.

 

GNEE muab 1.4539 steel kav nyob rau hauv ob qho tib si seamless thiab welded daim ntawv, nrog npaj txhij muaj. Haum rau kev siv tshuaj lom neeg, ntau yam kev kho deg (annealing, pickling) muaj.

 

Cov Khoom Muag Khoom ntawm 1.4539 (AISI 904L) Cov Yeeb Nkab & Tubes

Yam khoom	Txoj kev tsim khoom	Qhov Loj (Metric / Imperial)	Txheem Specifications
Seamless Yeeb Nkab (SMLS)	Kub Rolled / Cold Drawn / Cold Rolled	OD: 6.0mm - 530mm (1/4 "- 20") WT: 0.5mm-40mm	ASTM A312, EN 10216-5
Welded yeeb nkab (WLD)	ERW, EFW, Longitudinal Welded	OD: 12.7mm - 1219mm (1/2 "- 48") WT: 0.5mm-25mm	ASTM A312, EN 10217-7
Thaum tshav kub kub Exchanger Tube	Seamless los yog Welded (Beads tshem tawm)	OD: 12.7mm - 76.2mm WT: 0.8mm-3.2mm	ASTM A213, ASTM A249
Instrumentation Tube	Cold Drawn / Bright Annealed	OD: 3.0mm - 25.4 hli WT: 0.5mm-2.1mm	ASTM A 269 Cov khoom siv

 

Hu rau tam sim no

 

Cov ntaub ntawv pov thawj khoom siv (MTC) cov ntaub ntawv: Tag nrho cov kav dej yog muab nrog EN 10204 3.1 lossis 3.2 daim ntawv pov thawj.

Txiav thiab machining: Kev txiav ntev ntev (siab ± 1mm) thiab chamfering muaj.

Kev kuaj Corrosion: Kev cob qhia ASTM G48 pitting corrosion kuj pov thawj yog ua rau cov dej num hauv hiav txwv.

 

Material Test Certificate (MTC)