SUS 444 Stainless Hlau Bar rau Khoom noj khoom haus kev lag luam

GNEE Stainless Steel, raws li tus kws tshaj lij kev lag luam ntawm stainless hlau tuav, muaj cov khoom ruaj khov los ntawm cov tshuab loj hauv tsev xws li Baosteel thiab TISCO, thiab txhawb nqa cov khoom siv tau yooj yim los ntawm cov qauv txiav txim mus rau kev yuav khoom ntau.

 

GNEE muab SUS444 (UNS S44400 / 1.4521) zaub mov- qib stainless hlau tuav raws li ASTM A276 / A479 tus qauv. Cov ntaub ntawv muaj xws li puag ncig bar, square bar, thiab hex tuav, nrog diameters li ntawm 6-200 mm thiab ntev ntawm 2-6 m los yog customized. Cov txheej txheem saum npoo muaj xws li dub, ci, polished, thiab tig tiav, ua tau raws li qhov yuav tsum tau ua ntawm cov khoom siv xws li shafts, agitators, valve stems, thiab cov khoom txhawb nqa siv hauv cov khoom siv ua zaub mov.

 

Peb SUS444 stainless hlau tuav yog tsim los ntawm forging ntawm 1100-1200℃thiab kub dov, ua raws li los ntawm annealing ntawm 850-920 degree, precision straightening, thiab nto tiav. Tom qab ntawd lawv dhau mus dhau qhov kev sim tam sim no thiab ultrasonic, kev tshuaj xyuas tag nrho, thiab kev khaws cia thiab passivation. Zero- txheej txheem tswj kev sib kis tau raug tswj xyuas thoob plaws hauv kev tsim khoom kom ntseeg tau tias cov khoom muaj kev nyab xeeb, tsis yog- tshuaj lom, thiab tsis muaj nag lossis daus, ua raws li FDA thiab EU 1935/2004 cov qauv kev sib cuag zaub mov.

 

 

Hauv cov tshuaj chloride- muaj cov khoom noj ib puag ncig (xws li brine thiab tshuaj ntxuav), SUS444 qhia tias tsis muaj kev ntxhov siab corrosion, nrog rau ntev -lub sij hawm tiv thaiv xeb thiab tsis muaj nag lossis daus hnyav. Nws thermal conductivity yog 130-150% ntawm austenitic stainless hlau, thaum nws thermal expansion coefficient tsuas yog 60-70%. Ua npib tsib xee-dawb, nws muab tus nqi kom zoo dua 15-20% piv rau 316L. Txhua pawg tau muab nrog Daim Ntawv Pov Thawj Mill Test, EN 10204 3.2 ntawv pov thawj, thiab zaub mov-qib soj ntsuam cov ntaub ntawv, nrog rau cov khoom tiav tiav cov txiaj ntsig ntawm Ntau dua lossis sib npaug rau 99.5% thiab muaj peev xwm xa khoom sai.

 

SUS 444 Stainless Hlau Bars Specifications

Yam khoom	Stainless Hlau Bar / Stainless Hlau Qws
Hom	Stainless Hlau Round Bar Qws
Qib	201  304 304L 316 316L 309 310 310S 410 420 430 444 904L 2205 2507
Nto tiav	Polish, Dub, ci, ntxhib tig, sib tsoo, nruab nrab hauv av thiab lwm yam
Txuj	JIS, GB, AISI, ASTM, DIN, EN, SUS, UNS thiab lwm yam
Cov txheej txheem	Txias Rolled; Kub Rolled; Txias Drawn, Forged
Txoj Kev Xeem	Kev kuaj pom tsis pom, Eddy tam sim no kuaj, Hydrostatic kuaj lossis Ultrasonic kev tshuaj xyuas thiab nrog rau kev tshuaj xyuas cov khoom siv tshuaj thiab lub cev
Txoj kab uas hla	3-480 hli
Ntev	3000mm, 4000mm, 5800mm, 6000mm, 12000mm, los yog raws li xav tau.
Lub Sijhawm Lead	7-15 hnub ua haujlwm tom qab tau txais 30% tso nyiaj
Cov nqe lus them nqi	30% TT rau tso nyiaj, 70% TT tshuav nyiaj li cas ua ntej ua zaub mov xa tuaj.
Nqe lus	FOB, EXW, CIF, CFR
Ntim	Standard Seaworthy Pob los yog raws li tus neeg yuav tsum tau muaj

 

Chemical Composition (%)

Element	C	Si	Mn	P	S	Cr	Mo	Ti + Nb
Tus nqi	Tsawg dua lossis sib npaug li 0.025	Tsawg dua lossis sib npaug li 1.00	Tsawg dua lossis sib npaug li 1.00	Tsawg dua lossis sib npaug li 0.040	Tsawg dua lossis sib npaug li 0.030	17.5 - 19.5	1.75 - 2.50	0.2+4(C+N) min

 

Mechanical Properties (ntawm chav tsev kub)

Khoom	Yam tsawg kawg nkaus	Tus nqi
Tensile zog (Rm)	Ntau dua lossis sib npaug li 410 MPa	450 - 580 MPa
Yield zog (Rp0.2)	Ntau dua lossis sib npaug li 245 MPa	310 MPa
Elongation (A%)	Ntau dua lossis sib npaug li 20%	25%
Hardness (Brinell HB)	Tsawg dua lossis sib npaug li 217	180

 

Tsis tas li ntawd, peb muab cov kev pabcuam sib sib zog nqus xws li txiav, tig, sib tsoo, thiab polishing, nrog rau kev xaiv cov khoom siv tswv yim thiab kev taw qhia vuam. SUS444 tuaj yeem welded siv cov qauv stainless hlau vuam txoj kev uas tsis muaj kev pheej hmoo ntawm intergranular corrosion tom qab vuam.

 

 

SUS 444 Stainless Hlau Bars Daim Ntawv Thov

Kev ua zaub mov thiab dej haus: siv hauv tshuab, kav dej, thiab khoom siv mis nyuj.
Cov dej kub cua sov thiab kev cia khoom: dav siv hauv tsev cov dej kub hauv tsev, cov ntim dej, thiab cov dej rhaub dej.
Txheej txheem kev lag luam Cheebtsam: Haum rau boiler qhov chaw, fumed ducts, thiab tshuaj ua khoom siv.

 

 

corrosion kuj: SUS 444 vs SUS 316/304?

SUS 444 qhia tau zoo heev rau kev ntxhov siab corrosion cracking, pitting, thiab crevice corrosion nyob rau hauv chloride - muaj ib puag ncig, xws li brine siv nyob rau hauv kev ua zaub mov, tshuaj ntxuav, thiab acidic media uas muaj chlorides. Kev ntsuam xyuas kev kuaj mob nrawm nrawm tau pom tias nws tseem tsis muaj cov kab nrib pleb tom qab 48 teev hauv cov tshuaj magnesium chloride boiling; nws tsis kam mus rau kev ntxhov siab corrosion cracking yog qhov zoo tshaj ntawm SUS 304 (uas tsim cov kab nrib pleb hauv 2.5 teev) thiab SUS 316L (uas tsim cov kab nrib pleb hauv 9.8 teev). Qhov no ua rau nws tsim nyog siv rau hauv cov khoom siv pickling, seafood processing kab, siab -kub tu tshuab, thiab kev siv dej.

 

SUS 444 Stainless Hlau Bars Chaw tsim tshuaj paus

Ua kom tau raws li cov qauv siab ntawm kev lag luam khoom noj khoom haus, peb cov SUS 444 stainless hlau tuav nruj me ntsis ua raws li JIS G4303 tus qauv, tuav tus nqi PREN (pitting kuj sib npaug) tsis tu ncua ntawm 24 thiab 26. Rau kev ntim khoom, peb siv ib qho - txheej PE tiv thaiv zaj duab xis nrog fiber ntau {{5}.xagonalinforced. Rau qhov tseeb- cov pas nrig hauv av nrog kev ua siab ntev ntawm h8-h9, peb kuj muab cov khoom xa tawm-qib fumigated ntoo crates kom ntseeg tau tias qhov roughness tsawg dua lossis sib npaug li 0.4μm thiab tiv thaiv khawb los ntawm kev thauj mus los.

 

Hais txog lub sijhawm khoom xa tuaj, tus qauv Φ10-Φ120mm tuav hauv Tshuag thiab tuaj yeem xa tuaj tsis pub dhau 48 teev; kev txiav txim uas xav tau kev cai txiav los yog nto sib tsoo muaj lub sijhawm xa khoom ntawm 5-7 hnub ua haujlwm; lub Hoobkas tsim khoom lag luam rau loj- ntim tsis yog- cov ntaub ntawv cog lus tus qauv yog 30-35 hnub, thiab 100% Cov Ntawv Pov Thawj Ua Raws Cai (MTC) tau muab nrog rau txhua qhov khoom xa tuaj, suav nrog tus lej ntsuas hluav taws xob thiab daim ntawv qhia thib peb ntawm cov khoom noj-qib kev sib cuag.