316 ss yeeb nkab nqi vs duplex 2205 yeeb nkab nqi

Tus nqi ntawm stainless hlau Duplex 2205 yeeb nkab yog dab tsi?

Tus nqi rau Duplex 2205 stainless hlau kav sib txawv raws li qhov ntev, tuab, thiab tus neeg muag khoom, feem ntau yog li ntawm $ 1,000 txog $ 3,000 ib tuj rau cov qauv seamless thiab welded ntau yam. Cov ntaub ntawv tus nqi tshwj xeeb qhia txog kev lag luam ntau ntawm $ 5.00 txog $ 7.00 ib kilogram rau cov kav dej, nrog rau cov nqi tsev ib leeg hloov ntawm $ 34.53 txog $ 2,817.11 nyob ntawm qhov loj me (piv txwv li, 2 "Sch 80 vs. loj OD configurations).

 

Tus nqi ntawm SS 316 yeeb nkab ib kg yog dab tsi?

Raws li thaum ntxov 2026, tus nqi benchmark rau 316L seamless steel yeeb nkab yog $ 4.29 / kg (ex- nqi ua hauj lwm, tsis suav se excise), hos qhov nruab nrab muag nqi ntawm seamless steel yeeb nkab yog $ 2.20 / kg rau $ 4.18 / kg. ERW welded steel yeeb nkab ntawm qee qhov ntau thiab tsawg tau raug nqi ntawm $ 2.31 / kg thiab $ 2.75 / kg, nrog ntau qhov loj lossis me me feem ntau ua rau cov nqi siab dua.

 

 

Qhov twg zoo dua, 2205 lossis 316 stainless hlau yeeb nkab?

2205 Duplex Stainless Steel feem ntau yog qhov zoo tshaj rau kev thov kev lag luam vim nws yuav luag ob npaug ntawm lub zog thiab muaj zog corrosion ntau dua piv rau 316 stainless hlau, tshwj xeeb tshaj yog nyob rau hauv chloride - nplua nuj ib puag ncig zoo li dej hiav txwv. Txawm li cas los xij, 316 stainless hlau tseem yog qhov kev xaiv zoo dua rau cov ntawv thov uas xav tau kev tsim khoom yooj yim dua, kev ua kom txias zoo dua, thiab kev kub siab dua (txog 800 degree) uas tus nqi yog thawj qhov txwv.

 

316 ss yeeb nkab vs duplex 2205 yeeb nkab: Chemical Composition (%)

Qhov siab dua Chromium, Molybdenum, thiab ntxiv ntawm Nitrogen muab Duplex 2205 nws cov khoom zoo dua.

Element	AISI 316L	TIAB SA 2205
Chromium (Cr)	16.0 – 18.0	22.0 – 23.0
Nickel (Ni)	10.0 – 14.0	4.5 – 6.5
Molybdenum (hli)	2.0 – 3.0	3.0 – 3.5
Nitrogen (N)	0.10 max	0.14 - 0.20 (Txhim kho)
Cov pa roj carbon (C)	0.03 max	0.03 max

 

316 ss yeeb nkab vs duplex 2205 yeeb nkab: Mechanical Properties

Duplex 2205 muaj lub zog muaj zog ntau dua, tso cai rau phab ntsa thickness txo (hnyav txuag) hauv cov kav dej.

Khoom	AISI 316L (Annealed)	Duplex 2205 (Annealed)
Yield zog 0.2% (MPa)	Ntau dua lossis sib npaug li 170	Ntau dua los yog sib npaug rau 450 (ze li 2.5x siab dua)
Tensile zog (MPa)	Ntau dua lossis sib npaug rau 485	Ntau dua lossis sib npaug rau 620
Elongation (%)	Ntau dua lossis sib npaug li 40%	Ntau dua lossis sib npaug li 25%
Hardness (Brinell)	~ 160 HB	~ 290 HB (Kev hnav tsis zoo)

 

Corrosion Resistance: 316 SS vs Duplex 2205

Parameter	316 Stainless hlau	TIAB SA 2205	Kev piav qhia
PREN Tus nqi	~25	~36	Pitting Resistance Tus lej sib npaug; Cov nqi siab dua qhia tias muaj zog tiv thaiv pitting corrosion
CPT (zeeg)	~ 25 degree	>60 degree	Critical Pitting Kub; Cov txiaj ntsig siab dua txhais tau tias muaj kev tiv thaiv zoo rau chloride-induced pitting
CCCT ( degree)	~ 15 degree	~ 35 degree	Critical Crevice Corrosion Kub
SCC Resistance Index	35	95	Kev nyuaj siab Corrosion Cracking kuj; 2205 yog qhov zoo tshaj rau 316

 

 

316 ss yeeb nkab vs duplex 2205 yeeb nkab: Daim ntawv thov

316/316L Tube	Khoom noj khoom haus / dej haus, tshuaj, tsawg- cov kab mob siab, kev tsim vaj tsev.
Duplex 2205 Tube	Roj & roj av piping, tshuaj tankers, desalination nroj tsuag, siab -pressure heat exchangers.

 

Dab tsi yog qhov txawv ntawm Duplex 2205 thiab ss304?

Duplex 2205 yog lub siab -kev ua tau zoo duplex (ferritic-austenitic) stainless hlau nrog lub zog tawm los kwv yees li ob npaug ntawm tus qauv austenitic SS304, muab kev tiv thaiv corrosion zoo dua, tab sis ntawm tus nqi siab dua (kwv yees li 60-80% ntau dua). Thaum SS304 tsim nyog rau kev siv dav dav, zaub mov- qib, lossis cov ntawv siv corrosive nruab nrab, SS2205 tshwj xeeb yog tsim los rau hnyav, hnyav-ua haujlwm ib puag ncig xws li kev ua tshuaj lom neeg thiab thaj chaw marine.

 

 

GNEE tuav cov khoom ntawm ntau txhiab tons ntawm 316L thiab 2205 stainless hlau, ua kom cov khoom xa tuaj sai ntawm cov qauv tshwj xeeb hauv 7-15 hnub. EN 10204 3.1 MTC yog muab rau txhua qhov khoom xa tuaj, thiab kev faib cov ntawv pov thawj hauv zej zog (ABS, BV, DNV, LR) tuaj yeem muab tau raws li qhov kev thov, tsim nyog rau cov haujlwm siab xws li marine engineering thiab roj thiab roj.

GNEE Product Range

We supply both seamless and welded pipes, covering all major industrial specifications.

Supply Dimension	AISI 316 / 316L (Austenitic)	Duplex 2205 (UNS S31803 / S32205)
Main Standards	ASTM A312, ASTM A213, ASTM A269, EN 10216-5	ASTM A789, ASTM A790, EN 10216-5
Seamless Yeeb Nkab	OD: 6 hli - 762 hli (1/8 "- 30")	OD: 10mm - 610mm (3/8 "- 24")
Welded Yeeb Nkab	OD: 10mm - 2000mm (loj diameters customizable)	OD: 12mm-1200mm
Phab ntsa Thickness (Schedule)	SCH 5S, 10S, 40S, 80S, 160S, XXS	SCH 10S, 40S, 80S, 160S
Nto tiav	Pickled, Bright Annealed (BA), Polished	Pickled, Sand Blasted

 

Hu rau tam sim no

Nyem qhov khoom txuas hauv qab no kom paub ntau ntxiv txog peb cov khoom!

GNEE xyuas kom meej tias txhua cov yeeb nkab tau dhau los ntawm cov kev sim hauv qab no:
PMI Cov Ntawv Pov Thawj: 100% kev pom zoo ntawm cov ntsiab lus molybdenum (Ntau dua lossis sib npaug li 2.0%) hauv 316.
Tsis yog-Kev kuaj puas tsuaj (NDT): suav nrog eddy tam sim no kuaj (ET), kuaj ultrasonic (UT), lossis X-ray tshuaj ntsuam (RT - rau loj- txoj kab uas hla welded kav).
Kev Ntsuas Hydrostatic: Ua kom muaj kev nyab xeeb nyob rau hauv siab -xwm txheej.

Rau kev ntim khoom thiab kev thauj mus los, tag nrho cov kav hlau tsis muaj steel raug kho rau kev tiv thaiv kev ya raws thiab kaw ruaj khov siv ntoo crates, pallets, lossis npuas qhwv. Cov thawv ntim khoom lossis cov tsheb thauj neeg mob siab rau siv thaum lub sijhawm thauj mus los kom ntseeg tau tias kev ruaj ntseg thiab kev nyab xeeb ntawm cov khoom thaum caij tsheb npav. Peb muab kev xa khoom thoob ntiaj teb, nrog rau lub voj voog xa khoom ib txwm ntawm 7-15 hnub txij li kev tsim khoom mus rau kev xa khoom, ua kom cov khoom xa tuaj raws sijhawm rau peb cov neeg siv khoom.