1.4404 vs S31603: Ob Qhov Kev Xaiv rau Tib 316L Stainless Hlau

Ob lub npe, Ib qho khoom siv: 316L

Cov kws tsim khoom thiab cov neeg yuav khoom nrhiav 316L stainless hlau tsis tu ncua ntsib ob lub npe uas tshwm sim rau lub npe sib txawv: EN 1.4404 thiab UNS S31603. Lawv nyob rau hauv qhov tseeb tib yam alloys . 1.4404 yog cov khoom naj npawb muab nyob rau hauv European tus qauv EN 10088-1, qhov twg lub npe steel yog X2CrNiMo17-12-2. S31603 yog lub koom haum Numbering System (UNS) siv los ntawm ASTM thiab ASME cov qauv, suav nrog ASTM A240 rau phaj, ntawv, thiab sawb, ASTM A312 thiab A269 rau cov yeeb nkab thiab raj, thiab ASME SA240 rau kev siv lub nkoj siab. Qhov txawv yog ib qho ntawm naming convention thiab regional code, tsis yog metallurgy.

Qhov twg txhua lub npe los ntawm

EN 1.4404: txhais nyob rau hauv EN 10088-1 (general stainless hlau qib tus qauv) thiab xa raws li EN 10088-2 (daim ntawv / sawb) los yog EN 10088-3 (bar). Hlau lub npe X2CrNiMo17-12-2.

UNS S31603: txhais hauv ASTM A240, A312, A269, A276, thiab lwm yam ASME SA specifications. Common coj mus muag lub npe: 316L.

Cov npe sib npaug hauv tebchaws: JIS SUS316L (JIS G4303 / G4304) thiab GB 022Cr17Ni12Mo2 (GB / T 20878) hauv Suav teb.

Kev sib piv tshuaj lom neeg

Element (% los ntawm pawg)	EN 1.4404 (EN 10088-1)	UNS S31603 (ASTM A240)
C	0.030 max	0.030 max
Cr	16.5-18.5	16.0-18.0
Ni	10.0-13.0	10.0-14.0
Mo	2.00-2.50	2.00-3.00
Mn	max 2.00 Nws	max 2.00 Nws
Si	max 1.00 Nws	0.75 max
P	0.045 max	0.045 max
S	0.015 max	0.030 max
N	0.11 max	0.10 max

Cov pa roj carbon txwv, cov cuab yeej uas txhais tau qib L (qis-carbon)), zoo ib yam ntawm 0.030% max hauv ob lub tshuab. Chromium, nickel, thiab molybdenum sib tshooj yuav luag tag nrho; qhov sib txawv me me hauv silicon thiab sulfur txwv tsis pub muaj kev cuam tshuam txog kev coj ua hauv cheeb tsam thiab tsis hloov corrosion lossis mechanical tus cwj pwm hauv kev xyaum.

Mechanical Properties

Khoom	ASTM A240 (Plate)	EN 10088-2 (cov ntawv txias-dov, ib txwm)
Tensile zog	485 MPa min	530-680 MPa
Yield zog	170 MPa min	240 MPa min (Rp 0.2)
Elongation	40% min	40% min

Ob lub tshuab qhia cov khoom siv ductile, weldable austenitic. Cov ntsiab lus carbon tsawg tiv thaiv chromium-carbide nag lossis daus ntawm cov ciam teb thaum lub sij hawm vuam, uas yog vim li cas 316L yog lub neej ntawd xaiv rau cov txheej txheem welded cov cuab yeej hauv chloride- kev pabcuam kabmob.

Puas yog 1.4404 thiab S31603 Hloov pauv tau?

Yog rau feem ntau cov ntawv thov engineering: ob lub npe piav qhia txog tib lub alloy, thiab cov khoom siv rau ob tus qauv yuav ua tau raws li lwm cov kev cai. Cov kev tsim nyog tseem ceeb hauv txoj cai- tswj hwm txoj haujlwm. Cov hlab ntsha siab, cov kav dej, thiab cov khoom siv hluav taws xob tau tsim los rau ib tsab ntawv tshwj xeeb ntawm ASME, EN, lossis lwm cov lej, thiab lub cev tshuaj xyuas yuav tsum muaj cov ntaub ntawv pov thawj uas hais txog kev tswj hwm tus qauv. Tus neeg yuav khoom hauv qhov project European yuav tsum thov EN 10204 3.1 daim ntawv pov thawj rau 1.4404; tus neeg yuav khoom hauv ASTM qhov project yuav tsum thov daim ntawv pov thawj xa mus rau S31603. Kev sib xyaw cov qauv yam tsis muaj kev tshuaj xyuas engineering tuaj yeem ua rau cov ntaub ntawv tsis ua tiav ntawm kev tshuaj xyuas.

Kev siv ntawm 316L (1.4404 / S31603)

Marine hardware thiab coastal architectural Cheebtsam

Pharmaceutical, khoom noj, thiab dej haus ua khoom siv

Chemical cia tanks, piping, thiab evaporators

Thaum tshav kub kub exchangers thiab condensers

Welded cov qauv hauv chloride-cov kabmob ib puag ncig uas yuav tsum tau zam

FAQ

Puas yog 1.4404 tib yam li 316L?

Tau. 1.4404 yog EN cov ntaub ntawv tus lej rau 316L, nrog lub npe hlau X2CrNiMo17-12-2. Tib alloy yog hu ua UNS S31603, JIS SUS316L, thiab GB 022Cr17Ni12Mo2.

L hauv 316L txhais li cas?

L stands rau low carbon. Cov ntsiab lus carbon siab tshaj plaws yog 0.030%, piv nrog 0.08% rau tus qauv 316. Qhov qis carbon txwv txwv tsis pub chromium-carbide nag lossis daus thaum vuam, khaws cia corrosion kuj nyob rau hauv tshav kub- cuam tshuam cheeb tsam.

Kuv puas tuaj yeem siv cov khoom S31603 thaum daim duab qhia txog 1.4404?

Chemically thiab mechanically yog, tab sis daim ntawv pov thawj khoom xa tuaj yuav tsum siv tus qauv xav tau los ntawm txoj haujlwm code. Paub meej nrog tus tsim lossis kev soj ntsuam xyuas ua ntej hloov pauv thoob EN thiab ASTM cov ntaub ntawv.

Qhov txawv ntawm 1.4401 thiab 1.4404 yog dab tsi?

1.4401 (X5CrNiMo17-12-2) yog EN sib npaug ntawm tus qauv 316 nrog 0.07% max carbon, thaum 1.4404 yog cov pa roj carbon tsawg 316L nrog 0.030% max carbon. 1.4404 yog nyiam dua; 1.4401 yog siv nyob rau hauv qhov chaw siab dua chav-kub lub zog xav tau thiab vuam txwv.

Kuv yuav tsum siv cov khoom siv li cas rau kev tsim?

Siv cov txiaj ntsig los ntawm tus qauv uas tswj hwm koj qhov project. Rau ASME siab-tsim lub nkoj, siv ASME SA240 tso cai rau kev ntxhov siab; Rau European tsim, siv EN 10028-7 rau cov phaj siab. Yam tsawg kawg nkaus yog 485 MPa tensile thiab 170 MPa tawm los ntawm ASTM A240 rau phaj.