ASTM A790 S31803 Duplex Stainless hlau kav

ASTM A790 yog dab tsi?

ASTM A790 tus qauv qhia txog seamless thiab welded ferritic / austenitic stainless hlau kav. Duplex stainless hlau (DSS) kav muaj ob -theem (thiab ) qauv, sib txuas cov khoom ntawm ob qho tib si ferritic thiab austenitic stainless hlau. Muab piv rau austenitic stainless hlau, duplex stainless hlau muaj kev txhim kho lub zog ntawm lub zog, tsis kam mus rau intergranular corrosion, kev nyuaj siab corrosion tawg, corrosion qaug zog, thiab yaig corrosion.

 

GNEE muabASTM A790 S31803 duplex stainless hlau kav, uas yog seamless thiab welded ferritic / austenitic stainless hlau kav siv rau kev corrosion thiab siab - daim ntawv thov kub. Feem ntau hu ua 2205 duplex steel, nws feem ntau yog tsim los ntawm hlau, chromium (22%), npib tsib xee (3%), thiab molybdenum (3%), thiab muaj cov kab nrib pleb zoo heev, oxidation tsis kam, thiab cov khoom siv zoo.
GNEE muab ASTM A790 31803 duplex seamless kav uas tsim nyog rau cov ntawv thov uas xav tau kev ntsuas raug. Txawm li cas los xij, nws cov qauv seamless ua rau qis zog me ntsis piv rau welded UNS S31803 kav. Rau cov ntawv uas tsis yog - tseem ceeb heev uas yuav tsum tau ua kom qis me ntsis, hluav taws xob fusion welded (EFW) duplex S31803 UNS kav kuj siv tau. Daim ntawv thov rau A790 S31803 kuj welded kav muaj xws li seawater thiab marine ib puag ncig, chemical processing industries, food processing plant, heat generators, automotive parts, boiler components, and other high-temperature applications.

Qhov txawv ntawm S32205 thiab S31803 yog dab tsi?

Dab tsi yog qhov txawv ntawm Duplex Steel UNS S31803 & UNS S32205 Fasteners. Qhov sib txawv tseem ceeb yog qhovchromium thiab molybdenum cov ntsiab lus nyob rau hauv lawv cov tshuaj muaj pes tsawg leeg. UNS S31803 muaj 22% -23% chromium thiab 4.5% -6.5% molybdenum, thaum cov ntsiab lus rau UNS S32205 yog 21% -23% chromium thiab 3.0% -4.0% molybdenum.

 

ASTM A 790 31803 duplex seamless kav dej specification

ASTM A790 S31803 / S32205 Duplex Stainless Hlau Yeeb Nkab
Sab nraud txoj kab uas hla	6-203 hli
Phab ntsa Thickness	0.5-25 hli
Ntev	Mus txog 25 m
Txuj	ASTM A789, A790, thiab lwm yam.
Qib	S32304/S31803/S32205/S32750/S31260/S32550/S32760,S32707, thiab lwm yam.
Kev Xa Khoom	Pickled, Polished, Bright Annealed
Cov txheej txheem	Seamless / Welded
Daim ntawv thov	Thaum tshav kub kub Exchanger, rhaub, Condenser, Machining, Bearing Machining, API Service…
Kos npe	LOGO, Standard, Qib, Loj, Kub Number.
Pob	Woven hnab, rooj ntoo, los yog raws li tus neeg yuav tsum tau muaj.
Kev Xav Tau Zoo	Mill Test Certificate (EN 10204/3.1); Kev soj ntsuam thib peb yog qhov lees txais.

 

Tshuaj muaj pes tsawg leeg

Qib	C max	Si max	Mn max	P max	S max	Cr	Ni	Mo	N
UNS S32750	0.030	0.8	1.2	0.030	0.015	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32
UNS S31803	0.030	1.0	2.0	0.020	0.020	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20
UNS S31500	0.030	1.0	1.2-2.0	0.030	0.030	18.0-19.0	4.5-5.5	2.5-3.5	0.05-0.10

Lub cev muaj zog

Qib	YSMPa min	TSMpa min	Elongation%	Hardness HRC
UNS S32750	550	800	15	20
UNS S31803	450	620	25	20
UNS S31500	440	630	30	20

 

Dimensions ntawm ASTM A790 S31803 Yeeb Nkab

 

UNS 31803 Duplex Stainless Hlau Yeeb Nkab Daim Ntawv Thov:

Kev ua tshuaj lom neeg, thauj thiab khaws cia.

Kev tshawb nrhiav roj thiab roj thiab offshore rigs.

Roj thiab roj refining.

Marine ib puag ncig.

Cov khoom siv tswj cov pa phem.

Pulp thiab paper manufacturing

Cov txheej txheem tshuaj Cog

 

S31803 Tube Nqe

Kev piav qhia	ASTM A790 UNS S31803 yeeb nkab Nqe
Uns S3180 Duplex Stainless hlau kav	Min. Order: 10 Tons
Seamless Steel Yeeb Nkab SA790 Uns S31803	US $ 1.9-8.2 / kg
Seamless Duplex Stainless Hlau Yeeb Nkab Uns S31803	US $ 600 / Tuj
1.4462, Uns S31803 Duplex / Super Duplex Stainless Hlau Yeeb	US $ 500-3000 / Tuj
B36.19 ASTM A790 Uns S31803 Hlau Yeeb Nkab	Teb Chaws Asmeskas $4500/Ton
SA789 Uns S31803 Duplex Stainless Hlau Yeeb Nkab Nqe	US $ 1.7-4.1 / kg
Duplex Steel Uns S31803 Rectangular Pipe	US $ 2500 / Tuj
ASTM A790 Uns S31803 Seamless Stainless hlau yeeb nkab	US $ 2.5-3 / kg
ASTM ASME DIN Uns S31803 Seamless / Welded Stainless Hlau Yeeb Nkab	US $ 900-1200 / Tuj
Seamless Duplex Stainless Hlau Yeeb Nkab Uns S31803	US $ 2500 / Tuj

 

Qee qhov kev ntsuam xyuas zoo ua los ntawm peb suav nrog:

Corrosion Test	Ua tsuas yog thaum tshwj xeeb thov los ntawm tus neeg siv khoom
Tshuaj ntsuam xyuas	Kev sim ua tiav raws li tus qauv tsim nyog
Kev puas tsuaj / Mechanical Test	Tensile|Hardness|Flatting|Flare|Flange
Rov qab- khoov thiab Re. kev ntsuam xyuas	Ua raws li cov qauv tsim nyog & ASTM A-450 thiab A-530 cov qauv, uas ua kom tsis muaj teeb meem nthuav dav, vuam & siv ntawm cov neeg siv khoom kawg
Eddy Kev Xeem Tam Sim No	Ua kom pom qhov sib xws hauv subsurface los ntawm kev siv Digital Flaw-mark Testing System
Kev Ntsuas Hydrostatic	100% Hydrostatic Testing tau ua raws li ASTM-A 450 tus qauv rau kev kuaj lub raj xau, thiab lub siab loj tshaj peb tuaj yeem txhawb 20Mpa/7s .
Huab Cua Hauv Kev Ntsuas Siab	Txhawm rau txheeb xyuas cov pov thawj ntawm cov pa tawm
Kev tshuaj xyuas qhov muag	Tom qab passivation, txhua qhov ntev ntawm cov raj & cov kav dej tau raug kuaj pom zoo los ntawm cov neeg ua haujlwm cob qhia txhawm rau txheeb xyuas qhov tsis zoo ntawm qhov chaw & lwm yam tsis zoo.

 

Yog tias koj muaj qhov yuav tsum tau ua rau UNS 31803 stainless hlau kav, peb txais tos koj xaj. GNEE muaj cov khoom muag loj ntawm cov khoom nrov rau koj xaiv. Muaj nyob rau hauv ob qho tib si seamless thiab welded daim ntawv, thov hu rau peb lub Hoobkas tam sim rau cov ncauj lus kom ntxaws tshuaj muaj pes tsawg leeg thiab kuaj dawb. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.Email:sales@gneestainless.com

Cov kav dej tau ntim nrog cov ntawv tsis muaj dej tsis zoo thiab cov hlua hlau, ua tau raws li tus qauv xa tawm hiav txwv freight ntim, haum rau ntau txoj kev thauj mus los, lossis kho raws li cov neeg siv khoom xav tau.