316L vs . 304L Heat Exchanger Tubes: Daim ntawv thov

Mar 16, 2026

Tso lus

Rau cov kws tsim khoom thiab cov neeg tswj xyuas cov khoom siv cov khoom siv stainless hlau kub exchanger raj, kev xaiv cov khoom siv ncaj qha cuam tshuam rau kev tiv thaiv corrosion, kev pab lub neej, thiab kev ua haujlwm zoo. Ntawm cov austenitic stainless hlau, 304L thiab 316L yog ob feem ntau siv qib hauv cov tshuab hluav taws xob sib txawv thoob plaws kev lag luam xws li kev tsim tshuaj lom neeg, tsim hluav taws xob, khoom noj khoom haus, thiab kev tsim khoom hauv hiav txwv.

Kev nkag siab txog qhov sib txawv ntawm kev tiv thaiv corrosion, kev ua haujlwm kub hloov pauv, thiab cov yam ntxwv ntws tuaj yeem pab cov neeg yuav khoom xaiv tus nqi ntau tshaj - cov khoom siv tau zoo thiab txhim khu kev qha.

Dab tsi yog qhov txawv ntawm 304L thiab 316L tshav kub exchanger raj?

Ob leeg 304L thiab 316L yog tsawg- carbon versions ntawm tus qauv austenitic stainless hlau. Lub npe "L" qhia tias cov ntsiab lus qis qis (tsawg dua lossis sib npaug li 0.03%), uas txhim kho kev sib txuas thiab txo qhov kev pheej hmoo ntawm kev sib tsoo ntawm kev sib tsoo tom qab vuam.Qhov sib txawv tseem ceeb yog tias 316L muaj cov molybdenum, uas txhim kho corrosion kuj nyob rau hauv cov tshuaj chloride - muaj ib puag ncig.

Khoom	304L Stainless Hlau Tube	316L Stainless Hlau Tube
UNS Number	S30403	S31603
Ntsiab Alloying Elements	18% Cr, 8% Ni	16% Cr, 10% Ni, 2-2.5% Mo
Cov ntsiab lus carbon	Tsawg dua lossis sib npaug li 0.03%	Tsawg dua lossis sib npaug li 0.03%
Corrosion Resistance	Zoo nyob rau hauv ib puag ncig me me	Zoo heev nyob rau hauv chloride thiab tshuaj ib puag ncig
Pitting Resistance	Nruab nrab	Siab
Hom qauv	ASTM A213 / ASTM A269 Txuj	ASTM A213 / ASTM A269 Txuj
Nqi	qis	Siab dua

316L vs . 304L Thaum tshav kub kub Exchanger Tubes: Thaum tshav kub kub kev ua haujlwm

Qhov sib txawv ntawm kev hloov pauv cua sov ntawm 304L thiab 316L yog qhov tsawg heev. Hauv ntau daim ntawv thov, corrosion kuj, tsis thermal conductivity, txiav txim siab cov khoom xaiv.

Khoom	304L	316L
Thermal conductivity (W / m · K)	~16.2	~15.0
Thaum tshav kub kub (J / kg·K)	500	500
Qhov ceev (kg / m³)	8000	8000

Flow Rate thiab Pressure Drop Considerations

Rau cov neeg siv khoom kub exchanger tube, tus nqi ntws ncaj qha cuam tshuam rau kev hloov pauv hluav taws xob thiab kev poob siab.

Lub volumetric flow rate nyob rau hauv ib lub raj tuaj yeem suav nrog:

Flow Rate And Pressure Drop Considerations

Qhov twg:

Q= volumetric flow rate

A= raj hla- ntu ntu

v= dej tshaj tawm

Q = A v

Piv txwv xam

Rau ib19 hli (3/4 nti) OD kub exchanger rajnrog ib txoj kab uas hla ntawm16 mm:

Parameter	Tus nqi
Sab hauv	16 mm
Hla Ntu Cheeb Tsam	2.01 × 10⁻⁴ m²
Dej nrawm	1.5 m/s
Tus nqi ntws	0.00030 m³/s

316L vs . 304L Heat Exchanger Tubes: Daim ntawv thov

316L stainless hlau raj yog qhov zoo tshaj rau kev tiv thaiv corrosion tiv thaiv chlorides thiab siab - qhov chaw kub, zoo tagnrho rau marine, tshuaj, thiab tshuaj ua haujlwm . 304L raj zoo dua rau tus nqi- zoo, dav dav- lub hom phiaj kev siv xws li khoom noj khoom haus, khoom noj siv mis, thiab me me tshav kub exchanger ib puag ncig thiab corrosion kuj.

Applications Of 304L Heat Exchanger Tubes

Kev siv ntawm 304L Heat Exchanger Tubes

304L raj yog siv dav hauv kev lag luam hluav taws xob hloov hluav taws xob uas ib puag ncig tsis muaj corrosive.
Khoom noj khoom haus thiab dej haus ua cua sov exchangers
HVAC condensers thiab evaporators
Cov dej txias txias tshuab
Pharmaceutical tshav kub exchangers
Cov khoom siv roj thiab roj nrog cov ntsiab lus chloride tsawg

Kev siv ntawm 316L Heat Exchanger Tubes

Tshuaj ua cov nroj tsuag
Marine tshav kub exchangers
Seawater desalination systems
Offshore roj & roj platforms
Pharmaceutical thiab biotech kev lag luam
Thaum tshav kub kub exchangers tuav cov tshuaj chloride- cov kua dej nplua nuj

Applications Of 316L Heat Exchanger Tubes

Qib twg muaj lub neej ua haujlwm ntev dua hauv cov khoom siv hluav taws xob sib hloov?

Hauv qhov chaw nruab nrab lossis me me, ob qho khoom siv tuaj yeem muab kev pabcuam ntev. Txawm li cas los xij:

304L raj feem ntau ua tau zoo hauv cov dej txias txias thiab kev siv dav dav.

316L raj feem ntau kav ntev dua nyob rau hauv marine, tshuaj, thiab siab -chloride ib puag ncig.

Hauv ntau lub tshuab kev lag luam, xaiv 316L hloov 304L tuaj yeem txo cov nqi kho thiab ncua sijhawm hloov pauv.

304L vs 316L Stainless Hlau Heat Exchanger Tube: Nqe

Tus nqi nruab nrab (2026)

Khoom siv	Nqe Ntau
304L Stainless Hlau Kub Exchanger Tube	$2,200 - $3,800 / ton
316L Stainless Hlau Heat Exchanger Tube	$3,000 - $6,500 / ton

316L raj feem ntau yog 20-40% kim dua 304 raj vim tias lawv muaj cov nickel thiab molybdenum ntau dua. Txawm li cas los xij, nyob rau hauv ib puag ncig corrosive, lub neej ntev ntawm 316L raj feem ntau txo cov nqi kho thiab hloov cov nqi.

SS 316L Heat Exchanger Tubes Chaw tsim khoom

** Cov Qauv Ua Tau Zoo: ** Ua tiav raws li ASTM A213, A249, A269, thiab A312 series cov qauv, nrog rau European EN 10216-5 TC1 / TC2 cov qauv. **System Certifications:** ISO 9001:2015, ISO 14001, and OHSAS 18001.
** Cov Khoom Siv Hluav Taws Xob: ** Rau cov phiaj xwm siab hauv cov teb chaws Europe, peb tuav TUV PED 2014/68 / EU thiab AD2000-W0 ntawv pov thawj.
** Dimensional Range:** Peb tshwj xeeb hauv kev tsim cov siab -precision tubing, nrog rau sab nraud (OD) ntau yam npog 6mm txog 762mm thiab Phab Ntsa Thickness (WT) ntau yam npog 0.5mm txog 50mm.
**Special Shapes:** Ntxiv rau cov qauv ncaj nraim, Gnee muaj cov kws tshaj lij U- khoov cov kev pabcuam, ua tiav los ntawm kev ntxhov siab- txo cov kev kho annealing.

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