ASTM A789 UNS S32750 Duplex Stainless Hlau Tubing

A789 S32750 steel yeeb nkab yog super duplex stainless hlau yeeb nkab uas muaj 25% chromium, 4% molybdenum, thiab 7% npib tsib xee. Nws muaj zog tiv thaiv tag nrho corrosion los ntawm cov organic acids xws li formic acid thiab acetic acid, nrog rau cov inorganic acids uas muaj chlorides. Cov hlau no yog siv rau hauv cov ntawv thov uas xav tau kev tiv thaiv dej hiav txwv, qhov kub thiab txias, thiab cov ntsiab lus nitric acid, xws li cov khoom siv hluav taws xob, cov cua txias, thiab cov khoom siv hauv cov roj refining, chiv, ntawv, roj av, thiab tshuaj industries.

A789 S3270 Super Duplex Yeeb Nkab Specification

Seamless Tube & Tube Loj: 1/2 "rau 8"

Welded yeeb nkab & Tube Loj: 6 "mus rau 24"

Sab nraud txoj kab uas hla: 6. 0-630 hli

Phab ntsa Thickness: 0.5 - 30 mm, Nruab Nrab Phab Ntsa lossis Phab Ntsa Yam Tsawg

Ntev: Tshwj xeeb lossis Rando, Txheem 6000 mm Ntev

Cov xwm txheej: Annealing Pickling, Beight Annealing

Duplex Stainless hlau yeeb nkab sib npaug

Lub npe hlau	Hlau Number	UNS	AISI
X2CrNiMoN25-7-4	1.4410	S32750	2507

SA789 Duplex Steel Yeeb Nkab Chemical Composition

UNS npe	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu	Lwm tus
S32750	0.030	1.20	0.035	0.020	0.80	6.0–8.0	24.0–26.0	3.0–5.0	0.24–0.32	0.50	. . .

S32750 Super Duplex Tubing

 

 

 

 

 

 

 

 

 

 

 

 

 

Welding Performance ntawm S32750 Super Duplex Stainless Hlau Yeeb Nkab:

1. S32750 steel kav tuaj yeem welded siv ntau txoj kev vuam. Txoj kev siv feem ntau yog Gas Tungsten Arc Vuam (GTAW).

2. Raws li tus qauv AWS A5.9, ER2594 vuam hlau yuav tsum tau siv los ua cov khoom muab tub lim. Cov tshuaj muaj pes tsawg leeg ntawm cov vuam hlau muaj siab purity dua li cov hlau puag. Preheating feem ntau tsis tas yuav tsum tau ua ntej vuam, tab sis nyob rau hauv qhov chaw txias sab nraum zoov, cov cua sov tsis sib xws ntawm thaj chaw sib koom lossis cov cheeb tsam nyob ze tuaj yeem ua kom tsis txhob muaj qhov sib txuam. Nws yog ib qho tseem ceeb los xyuas kom meej tias qhov kub hauv zos tsis tshaj 110 degree los tiv thaiv cov pa roj carbon ntau thiab intergranular corrosion.

3. Thaum lub sij hawm vuam, nws raug nquahu kom siv cov khoom siv hluav taws xob uas tsis muaj cua sov thiab ua kom lub vuam nrawm nrawm thiab nrawm.

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