Payipu y’ekyuma ekitali kizimbulukuse

Payipu ya kyuma ekitali kizimbulukuseye kintu ekiziyiza okukulukuta-ekyuma ekiziyiza okukulukuta-ekirungo kya tubular ekikoleddwa okwetoloolaemikutu gy’obuweereza, omutindo gwa chloride, ebbugumu, puleesa, n’enkola y’okukola(okuweta, okufukamira, okusiika/okutabula). Payipu "entuufu" telondebwa linnya lya grade lyokka-abaguzi batera okusiba...omutindo (ASTM/EN/ISO), ffoomu y’ebintu (etaliiko musonno oba ewereddwa), n’obunene bw’okukebera/ebiwandiikookusooka, olwo okakasizza embeera ya grade n'okungulu ezeetaagisa olw'okwesigamizibwa okw'ekiseera ekiwanvu-.

Payipu y’ekyuma ekitali kizimbulukuse y’emu ku nkola ezisinga okukozesebwa mu payipu za aloy mu mazzi agakulukuta, empeereza ya puleesa eya waggulu-, n’okukozesa ebbugumu eringi. Mu mutindo gwa ASTM A312 / ASME SA312 ogumanyiddwa mu nsi yonna, payipu z’ekyuma ekitali kizimbulukuse zikolebwa mu ngeri ezitaliiko buzibu, eziweereddwa, era ezikoleddwa mu ngeri ennyogovu ennyo-okutuukiriza ebisaanyizo ebisinga obukakali eby’amakolero nga amafuta ne ggaasi, eddagala ly’amafuta, okukola amasannyalaze, okulongoosa amazzi, emmere n’ebyokunywa, n’okuzimba.

Nga aomukozi wa payipu z’ekyuma ekitali kizimbulukusene export-oriented supply partner mupayipu ya kyuma ekitali kizimbulukuse China, Octal Pipe egaba payipu ez’ekyuma ekitali kizimbulukuse nga zirina okubikka kwa ddaala okujjuvu, okufuga ebipimo ebituufu, n’okukakasa omutindo mu ngeri enkakali. Ebintu byaffe bikakasiddwa okutuuka ku mutindo gw’ensi yonna omukulu (ASTM, ASME, EN, DIN) era nga bikoleddwa okutuukana n’obwetaavu bwa bakasitoma obw’enjawulo mu nkola zombi ez’enkola enkulu n’okukozesa enzimba.

Octal Pipe egaba payipu ez’ekyuma ekitali kizimbulukuse ezikoleddwa nga zigoberera ASTM A312 / ASME SA312 n’omutindo omulala ogw’ensi yonna. Payipu zino zisangibwa mu ngeri ezitaliiko musonno, eziweereddwa (ERW/EFW), n’ezikolebwa mu nnyonta (HCW), nga zikola okuziyiza okukulukuta okulungi ennyo, amaanyi g’ebbugumu eringi, n’obutuufu bw’ebipimo.
Nga tulina ebika ebikwata ku TP304/304L, TP316/316L, TP321, TP347, TP310S, Duplex 2205, ne Super Duplex 2507, payipu zaffe ez’ekyuma ekitali kizimbulukuse ziweereza amakolero ag’enjawulo omuli amafuta & ggaasi, eddagala ly’amafuta, okulongoosa eddagala, okukola amasannyalaze, okulongoosa amazzi, emmere n’ebyokunywa, n’okuzimba.

1.Scope & Omutindo gw'omusingi

• ASTM A312 / ASME SA312 – Payipu y’ekyuma ekitali kizimbulukuse ekya Autenitic okusobola okukulukuta okwa bulijjo n’okuweereza ebbugumu eringi-; ekwata ku Seamless (SMLS), Welded (nga/etalina filler), ne Heavily Cold Worked (HCW).
• Ebipimo ebijuliziddwa: ASME B36.19M (sayizi/obuzito bwa payipu ezitaliiko buzibu) ne ASME B36.10M (bwe kiba kituufu).
• Okukebera & ebiwandiiko: EN 10204 3.1/3.2 satifikeeti z'okugezesa; Okwesalirawo kasitoma ITP/omujulizi.

2.Emitendera egyekuusa ku nsonga eno

• ASTM A213 / SA213 nga bwe kiri– Tubu za bboyiyira ne superheater.
• ASTM A269 – Empeereza eya bulijjo / ttanka y’ebikozesebwa.
• ASTM A358 – Payipu ennene-diameter amasannyalaze-fusion-welded (EFW) austenitic payipu.
• ASTM A789 / A790 – Payipu ezitali za kikuta kya Duplex ne Super Duplex.
• EN 10216-5 / EN 10217-7 – Tubu ezitaliiko musonno / ezikoleddwa mu bbugumu ezitali za bbugumu olw’ebigendererwa bya puleesa.
• Empeereza enkaawa ey’okwesalirawo: NACE MR0175 / ISO 15156.

3.Grade Amaka agaweereddwa

• TP304 / TP304L – 18Cr-8Ni, eddagala eriyitibwa 18Cr-8Ni; ekigendererwa eky’awamu, weldable era formable.
• TP316 / TP316L – Mo-bearing, nnungi nnyo mu mpeereza ya chloride.
• TP321 / TP347 – Ti/Nb etebenkedde, eziyiza okukulukuta wakati w’obutundutundu oluvannyuma lw’okuweta.
• TP310S – Cr-Ni enkulu, egumira oxidation ku bbugumu eriri waggulu.
• Duplex 2205 / Super Duplex 2507 – Amaanyi amangi, okuziyiza SCC okw’ekitalo.

4.Okuwandiika & Okulondoola

• MTRs nga zirina okwekenneenya eddagala, ebivudde mu byuma, ebiwandiiko bya NDT, ebiwandiiko ebikwata ku kulongoosa ebbugumu.
• Okusiba ennamba y’ebbugumu okusobola okulondoola mu bujjuvu.
• Okugezesebwa kwa PMI kuliwo nga osabye.
• Okukebera okukulukuta n’okukebera kwa IGC okw’okwesalirawo (ASTM A262, G48).

316L Payipu y’ekyuma ekitali kizimbulukuse

Payipu ya 316L ey’ekyuma ekitali kizimbulukusekitera okulagibwa ku mazzi agalimu chloride-, empeereza y'eddagala erigonvu, n'ebikozesebwa ebiriraanye eby'ennyanja- kubanga kemiko ya Mo-erimu erongoosa okuziyiza ebinnya okusinziira ku 304/304L, ate nga "L" grade ewagira okukola obukuumi nga ekendeeza ku bulabe bw'okuwunyiriza oluvannyuma lw'okuweta.

Mu kugula ebintu, .Payipu ya 316L ey’ekyuma ekitali kizimbulukuseerina okunnyonnyolwa nga: (1) omutindo ogufuga (okugeza, ASTM A312 TP316L), (2) obunene n’enteekateeka, (3) embeera y’okungulu (pickled/passivated bwe kiba kyetaagisa), ne (4) okukebera n’ebiwandiiko obuwanvu-kale payipu etuusiddwa ekwatagana n’emisingi gyombi egy’omulimu gw’obuweereza n’okukkiriza ekyuma.

Payipu y’ekyuma ekitali kizimbulukuse okutwalira awamu eweebwa ngaseamlessobawelded, era okulonda okutuufu kutera okusalibwawoomulimu (puleesa/ebbugumu/okutikka okw’enzirukanya), enkola y’okukola, n’obunene bw’okukebera obwetaagisa pulojekiti ITP. Mu kugula, "seamless vs welded" kitono ku kwettanira ate kisinga ku oba empeereza ekkiriza omusono gwa weld-n'engeri omusono ogwo gye gunaakkirizibwamu n'okuwandiikibwa. Eno y'engeri Octal Pipe gy'ekola fuleemu y'okulonda nga ejuliza ebipapula ebitali bimenyamenya ebya sayizi ezitabuliddwa-.

Payipu ya kyuma ekitali kizimbulukuse etaliiko musonnoetera okulondebwa ng’omulimu gunywevu-puleesa eya waggulu, ebbugumu erya waggulu, oba okutambula kw’ebbugumu okusaba ennyo-era ng’abaguzi baagala omubiri gwa payipu ogw’ekimu ku layini z’enkola enkulu. Era kkubo lya mugaso eri dayamita nnyingi entono nga okubeerawo okutaliimu buzibu kunywevu era weld-seam review kwongera ku buzibu obuteetaagisa ku kufuna. Ebikulu ebivaako okulonda mulimu:

• Spec/code mu bulambulukufu yeetaaga seamless
• Empeereza ya bbugumu eringi- oba ey'enzirukanya nga dizayini ey'okukuuma y'esinga okwettanirwa
• Tight tolerance fit-up ku spools ezikoleddwa nga tezinnabaawo

Payipu ya kyuma ekitali kizimbulukuse eriko welded(ERW/EFW) etera okulondebwa ku dayamita ennene, emisinde emiwanvu egy’obugolokofu, n’ebipapula ebikekkereza ssente-nga ensengeka ekkiriza okuzimba okuweerezeddwa. Wano essira ly’okugula likyuka ne lidda ku kukkiriza omusono-okufuga enkola ya weld, NDT scope (UT/RT we kisoboka), n’ebyetaago by’embeera y’okungulu (pickling/passivation) ebikosa obuyonjo bw’okutandika okukola. Ku bipapula ebiweereddwa, Octal Pipe etera okukwataganya obuwanvu bw’okukebera omusono n’ebiwandiiko n’ekkubo ly’okukkiriza pulojekiti kale okufulumya ekifo ne kitasibira ku kutaputa.

Emitendera egya bulijjo egyakozesebwa ku pulojekiti mulimuASTM A312(payipu etali ya austenitic), .ASTM A790(payipu etali ya kizimbulukusa ya duplex), .ASTM A213(bboyiyira/ebiyumba ebiwanyisiganya ebbugumu), .ASTM A269(ebikozesebwa mu ttanka), neASTM A358(ennene-OD welded austenitic payipu).

Bw’oba ​​weetegereza aomukozi wa payipu z’ekyuma ekitali kizimbulukuse, ekituufu ekyawula ensibuko eyesigika okuva ku ya bulabe kwe kuddiŋŋana ku ddaala lya kkolero-:okukakasa omutindo, obulungi bwa weld (ku payipu eweweddwa), okutebenkera kw’ebipimo, embeera y’okungulu, n’okulondoola. Nga aekkolero lya payipu z’ekyuma ekitali kizimbulukuse-omugabi ayambibwako mupayipu ya kyuma ekitali kizimbulukuse China, Octal Pipe etekeddwawo okufulumya payipu etali ya kizimbulukusa ng’erina ebifuga abaguzi bye basobola okubala ku pulojekiti entuufu-naddala ku bipapula eby’omutindo ogutabuliddwamu-nga 304L nePayipu ya 316L ey’ekyuma ekitali kizimbulukusetayinza kukkirizibwa kusomoka.

Ebifo byaffe eby'okufuga ku ludda lw'ekkolero-bitera okubaamu:

• Okukakasa kwa PMI / kemiko (bwe kiba kyetaagisa):eziyiza okutabula kw'ekigero okukyamu-okutabula-, akabi aka bulijjo ak'okufuna ku bintu bya layini 304L/316L.
• Okufuga ebipimo:OD/WT, ovality, straightness-bino bisalawo fit-up speed ku prefabrication spools n'okudduka okuwanvu.
• Okukakasa omusono gwa weld (ku payipu ya welded):Ku runs okufulumya nga 316L stainless steel payipu, tusiba weld parameters (ebbugumu okuyingiza eddirisa, okutambula sipiidi, shielding okubikka) era track seam stability ne in-line okulondoola; weld bead profile efugibwa ku musingi gw’okukkiriza pulojekiti (etera okunnyonnyolwa ng’ekkomo ku buwanvu bw’obululu/okusala wansi n’okukwatagana ng’omulimu gw’obuwanvu bwa bbugwe), era okukwata obululu obw’omunda kuddukanyizibwa we kyetaagisa okukuuma bore nga ekwatagana okusobola okukola n’okutambuza empeereza.
• Empisa y’embeera y’okungulu:pickling/passivation n'ebyetaago by'obuyonjo ebitegeezeddwa okwewala "looks OK, fails in service/commissioning" surprises.
• Okupakinga ebweru w'eggwanga & okukola maapu y'okufulumya:Apayipu ya kyuma ekitali kizimbulukuse Chinaokugabira, obulabe bwa pulojekiti obwa bulijjo bwe butabula bwa grade-up, okwonooneka kungulu, n'okulwawo okufulumya ku kufuna. Octal Pipe ekendeeza kino n'okussaako obubonero obutegeerekeka obulungi, okukuuma enkomerero, enkola z'okupakinga bundle/frame, ne lot-based release pack ekola maapuokussaako obubonero ku payipu → MTC → ebiwandiiko by’okukebera. Ekyavaamu kyangu: okuwoza okutono, enzirukanya y'okuddamu-okukebera entono, n'okufulumya amangu sitoowa-kubanga payipu etuuka ng'enkola efugibwa, so si ntuumu y'ebintu.

Eno y’ensonga lwaki abaguzi bangi banoonyaomukozi wa payipu z’ekyuma ekitali kizimbulukuseobaekkolero lya payipu z’ekyuma ekitali kizimbulukusemupayipu ya kyuma ekitali kizimbulukuse Chinatebafaayo nnyo ku bigambo eby’enjawulo era tebafaayo nnyo oba omugabi asobola okutuusa bulijjo ekivaamu kye kimu: ekigero ekituufu (nga mw’otwaliddePayipu ya 316L ey’ekyuma ekitali kizimbulukuse), ebipimo ebituufu, kungulu okutuufu, n'obujulizi obutuufu obw'okukebera-nga tewali kuddamu kukola ku kufuna.

Nga omukozi wa payipu z’ekyuma ekitali kizimbulukuse, Octal Pipe efulumya payipu ezitali za mubiri nga zirina ebipimo by’okufulumya ebifugibwa, obulungi bw’omusono obukakasibwa (we kiba kituufu), n’ebiwandiiko by’okukebera ebiyinza okulondoolebwa.

1.Etaliiko mugongo (SMLS) .

• Enkola: Okufumbisa billet → Okufumita → Okuyiringisiza → Sizing → Solution Annealing → Pickling → Okugezesa.
• Omugaso: Tewali weld seam, eyesigika ku high-pressure ne critical service.

2.Ekiwaniriddwa (ERW/EFW) .

• Enkola: Okukola strip oba plate → Longitudinal/spiral welding → Solution annealing → Sizing → Okugolola.
• Enkola z’okuweta: ERW/HFI, TIG/GTAW, SAW, EFW okusinziira ku OD/WT.
• Omugaso: Ebisale-ebikendeeza, sayizi engazi eriwo, eby’obuyonjo n’okuggyawo obululu.

3.Ekola ennyo mu nnyonta (HCW) .

• Enkola: Okukendeeza ku bunnyogovu ku payipu welded + annealing.
• Omugaso: Amaanyi geeyongera, okugumiikiriza okunywevu, okumaliriza okugonvu.

4.Okulongoosa mu bbugumu & Surface

• Solution Annealing: 1050–1150 diguli okuzikira amangu.
• Ebintu by’oyinza okulondako ku ngulu: Ebifumbiddwa & ebisiigiddwa, bitangalijja, satin-esiigiddwa, endabirwamu-esiigiddwa.

5.Okulondoola omutindo

• Okugezesa amazzi, Eddy Current/UT, Radiography ku seam & omubiri.
• Okugezesa mu byuma: Okusika, amakungula, okukaluba, okupapajjo/okufuumuuka.
• Ebigezo by’okukulukuta eby’okwesalirawo: ASTM A262 (IGC), ASTM G48 (ebinnya).

Omuguzi bw’afuna ensondapayipu ya kyuma ekitali kizimbulukuse China, akabi akatuufu si "ekyuma kisobola okukola stainless"-kiba oba omugabi asobolaokukwata grade + sayizi + embeera y’okunguluobutakyukakyuka mu kipapula kyonna. Octal Pipe’s stainless program ezimbiddwa okwetoloola ensonga eyo: seamless tubes for tighter OD ranges and controlled surface, plus welded pipe for large diameters, byonna bifulumizibwa okuva mu kkubo ly’ekkolero erigatta okuyiringisibwa/okusika, okulongoosa ebbugumu, okugolola, n’okusiika mu layini emu.

Kino kye kitegeeza ku PO entuufu kyangu. Singa pulojekiti esabaPayipu ya 316L ey’ekyuma ekitali kizimbulukuse(etera okutabulwa ne 304L/321 oba duplex), Octal Pipe esobola okukuuma ekipapula nga kiyonjo nga efulumya munda mu madirisa ga OD aga bulijjo-seamless up toΦ630 mmera ne weldibwa okutuuka kuΦ2620 mm, nga obuwanvu bwa bbugwe butera okubaawo1–35 mm-kale okugerageranya obunene tekukaka "workarounds" mid-quote. Ku ludda lw’okukola, ekkubo livugibwa ebyuma-: a280 ekyuma ekiyiringisibwa + okusekula, awocold rolling/okukuba ekifaananyi ekinyogovu, n’eddirirwaobutonde-okubuguma kwa ggaasineokusiikaolw’okulongoosa kungulu, n’okusembayookugololanga tannayimbulwa. Olujegere lw’enkola olwo lwe luwagira stable fit-up n’enneeyisa y’okufumba eteeberezebwa, so si linnya lya ddaala lyokka ku lupapula.

Emitendera n’ebigezo bikwatibwako engeri EPC gye zigulamu ddala: payipu/ttaabu eza bulijjo okutuukaASTM/ASME (A312/A213/A269; A789/A790) Enkola ya kkampuni eno., nga kwogasseEN (10216-5/10216-2), DIN (17456/17458), JIS (G3459/G3463), GOST (9941/5632), ne G.B.. Okubeerawo kw’eddaala mu ngeri entuufu kuzingiramu amaka ga austenitic (TP304/304L, TP316/316L, TP321, TP347, TP310S, TP317L, 904L), duplex/super duplex (S31803/S32205/S32750), n’alloys za nickel ezirondeddwa (Nnamba 08825/N08904/N08028/N08800). Mu bufunze: aomukozi wa payipu z’ekyuma ekitali kizimbulukuseobusobozi obubikka byombi "ekimera ekitali kizimbulukuse ekya buli lunaku" n'okukulukuta-ebipapula ebikulu, n'ekkubo ly'ekkolero lya payipu z'ekyuma ekitali kizimbulukuse ekiyinza okukuuma ebifulumizibwa nga bikwatagana mu dayamita n'omutindo.

Tuukirira kati

Ebibuuzo ebibuuzibwa

 

 

Q:304 vs 316L payipu y'ekyuma ekitali kizimbulukuse - kiruwa kye nsaanidde okulambika?

A:Singa layini ejja kulabaebirungo ebiyitibwa chlorides(amazzi aganyogoza, okunaaba, empewo y’oku lubalama lw’ennyanja, okufuumuuka kw’omubisi gw’enjuki),316/316Lkitera okulambikibwa kubanga molybdenum alongoosa okuziyiza okulumbibwa kwa localized pitting/crevice bw’ogeraageranya ne 304-series.316Letera okwettanirwa ku spools eziweddwa okukendeeza ku bulabe bw’okuwunyiriza oluvannyuma lw’okuweta.

Q:ASTM A312 vs ASTM A213 vs ASTM A269 - njawulo ki eriwo (payipu vs ttanka)?

A:Lowooza ku "empeereza + ffoomu y'ebintu":ASTM A312terimu kiwujjo (stainless).payipuku bbugumu erya waggulu-n’obuweereza obw’okukosa obw’awamu (obutaliimu buzibu oba obuweerezeddwa).ASTM A213-liseamlessboiler/superheater/ebbugumu-ekiwanyisiganyaebipipa ebiyitibwa tubes, neASTM A269terimu kiwujjo (stainless).tubing (tubing) nga(etaliiko musonno oba welded) olw'okukulukuta okwa bulijjo-okuziyiza, okuweereza okw'ebbugumu erya wansi/erya waggulu-.

Q:Seamless vs welded stainless steel payipu - nnonda ntya nga sisukka -lambika?

A:Londaseamlessnga omulimu oba spec enywevu (puleesa/ebbugumu erya waggulu, okuvuga obugaali obw'amaanyi, oba "seamless required"). Okulondaweldedbwe spec ekkiriza era pulojekiti n'eganyulwa mu OD/WT ennywevu n'okubeerawo-olwo ofuga akabi nga onnyonnyolaomusono NDT obuwanvu(UT/RT/ET buli ITP) n’embeera y’okungulu ezeetaagisa mu PO.

Q:Nkola ntya ebisaanyizo by’omukozi/ekkolero lya payipu z’ekyuma ekitali kizimbulukuse mu China nga sinnateeka PO?

A:Saba ku...EN 10204 3.1satifikeeti esibiddwa ku looti ewereddwa (ebivudde mu kugezesebwa + sitatimenti y’okugoberera), era yeetaaga okulondoola okuvaokussaako obubonero ku payipu → MTC → ebiwandiiko by’okukebera; yongera PMI nga grade-mix risk eri waggulu (okugeza, 304L + 316L packages). Eno y'engeri esinga okwangu okuggya-akabi "stainless steel pipe China" sourcing n'okwewala okufuna-okulwawo okufulumya.

Ebiwandiiko ebikakasa

 

Satifikeeti ya CE

Satifikeeti ya ISO 9001

Ebbaluwa ya API Q1

Satifikeeti ya ABS

Satifikeeti ya AP-5L

Satifikeeti ya API-5CT

 

OD:mm 6 – mm 1200. Obuwanvu bwa mm

Obugumu bwa bbugwe:0.3 – 50 mm (SCH 5S okutuuka ku XXS) .

Obuwanvu:6m, 12m, 20FT, 40FT, esaliddwa ku mutindo

Ebiggwaako:Beveled, plain, nga eriko obuwuzi nga biriko ebiyungo

Okumaliriza ku ngulu:A/P, BA, erongooseddwa, endabirwamu

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