Umbhobho weStainless Steel

Umbhobho wensimbi engenasiciyintsimbi{0}}imveliso ye-tubular enganyangekiyo eyilwe ngeenxa zonkeimidiya yenkonzo, inqanaba lekloridi, ubushushu, uxinzelelo, kunye nendlela yokwenza(ukuwelda, ukugoba, ukuchola/ukupasa). Umbhobho "wasekunene" awukhethwa ngegama lobakala kuphela{1}}abathengi bakholisa ukutshixaumgangatho (ASTM/EN/ISO), ifomu yemveliso (ingenamthungo okanye i-welded), kunye nokuhlolwa/uxwebhu lomdakuqala, emva koko qinisekisa umgangatho kunye nemeko yomphezulu efunekayo-ukuthembeka kwexesha elide.

Umbhobho wentsimbi engasebenziyo sesinye sezona zisombululo zemibhobho yealloyi esetyenziswa kakhulu kulwelo oludlekayo,-inkonzo yoxinzelelo oluphezulu, kunye nobushushu obunyusiweyo bezicelo. Phantsi kwemigangatho eyaziwayo kumazwe ngamazwe ye-ASTM A312/ASME SA312, imibhobho yentsimbi etyiwayo yenziwa ngendlela engenamthungo, edityanisiweyo, kwaye ibanda kakhulu{4}}iifomu ezisetyenziweyo ukuze kuhlangatyezwane nezona mfuno zingqongqo kumashishini afana ne-oyile & negesi, i-petrochemical, ukuveliswa kombane, unyango lwamanzi, ukutya & nesiselo, nolwakhiwo.

Njengeumenzi wepayipi yensimbi engenasicikunye nokuthumela ngaphandle-iqabane lonikezelo olujoliswe ngaphakathiumbhobho steel stainless China, Umbhobho we-Octal unikezela ngemibhobho yentsimbi engatyiwayo kunye nomgangatho obanzi wokugubungela, ulawulo oluchanekileyo lomgangatho, kunye nokuqinisekiswa komgangatho ongqongqo. Iimveliso zethu ziqinisekisiwe kwimigangatho emikhulu yamazwe ngamazwe (i-ASTM, i-ASME, i-EN, i-DIN) kwaye ilungiselelwe ukuhlangabezana neemfuno ezithile zabathengi kuzo zombini iinkqubo zenkqubo ebalulekileyo kunye nezicelo zesakhiwo.

I-Octal Pipe inikezela ngemibhobho yentsimbi engenasici eyenziwe ngokuhambelana ne-ASTM A312 / ASME SA312 kunye neminye imigangatho yamazwe ngamazwe. Le mibhobho ifumaneka ngendlela engenamthungo, edityanisiweyo (i-RW/EFW), kunye neefomu ezibanda kakhulu (HCW), ezibonelela ngokumelana nokugqwesa okugqwesileyo, amandla obushushu obuphezulu, kunye nokuchaneka komlinganiselo.
Ngamabakala agubungela i-TP304/304L, TP316/316L, TP321, TP347, TP310S, Duplex 2205, kunye ne-Super Duplex 2507, imibhobho yethu yentsimbi engenastainless ikhonza uluhlu olubanzi lwamashishini kubandakanya i-oyile & negesi, i-petrochemical, unyango lwemichiza, ukwakhiwa kwamanzi, ukwakhiwa kokutya kunye nokuveliswa kokutya.

1.Ububanzi kunye neMigangatho eSiseko

• ASTM A312 / ASME SA312 – umbhobho wentsimbi engatyiwa yi-Austenitic ukwenzela umhlwa jikelele kunye nenkonzo- yobushushu obuphezulu; igubungela i-Seamless (SMLS), i-Welded (nge/ngaphandle kokugcwalisa), kunye ne-Heavily Cold Worked (HCW).
• Izalathisi zomda: ASME B36.19M (ubungakanani bombhobho obungenastainless/ubunzima) kunye ne-ASME B36.10M (xa kufanelekile).
• Uhlolo kunye namaxwebhu: EN 10204 3.1/3.2 izatifikethi zovavanyo; umxhasi ozikhethelayo we-ITP/ingqina.

2.Imigangatho eNxulumeneyo

• I-ASTM A213 / SA213-Iibhubhu zokubilisa kunye ne-superheater.
• I-ASTM A269 - Inkonzo ngokubanzi / iityhubhu yesixhobo.
• I-ASTM A358 – Enkulu-idayamitha yombane-umdibaniso{3}}wewelded (EFW) umbhobho weaustenitic.
• I-ASTM A789 / A790 - Imibhobho ye-Duplex kunye ne-Super Duplex engenasici.
• I-TS EN 10216-5 / EN 10217-7 iityhubhu ezingenamthungo / ezidityanisiweyo ngeenjongo zoxinzelelo.
• Inkonzo emuncu yokuzikhethela: NACE MR0175 / ISO 15156.

3.Iintsapho zeBanga ziyabonelelwa

• TP304 / TP304L – 18Cr-8Ni; injongo jikelele, weldable kunye formable.
• I-TP316 / TP316L – i-Mo-ithwele, igqwesileyo kwinkonzo yekloridi.
• I-TP321 / TP347 - i-Ti/Nb izinzile, inqanda isithuba se-corrosion ye-intergranular{2}}i-welding.
• TP310S – High Cr{1}Ni, oxidation ukumelana kwiqondo lobushushu eliphezulu.
• I-Duplex 2205 / Super Duplex 2507-Amandla aphezulu, ukuxhathisa okuphezulu kwe-SCC.

4.Uxwebhu kunye nokulandelelwa

• Ii-MTR ezinohlalutyo lweekhemikhali, iziphumo zomatshini, iirekhodi ze-NDT, iilogi zokunyanga ukushisa.
• Istampu senani lobushushu ukuze kulandelekeke ngokupheleleyo.
• Uvavanyo lwe-PMI luyafumaneka xa uceliwe.
• I-corrosion yokuzikhethela kunye neemvavanyo ze-IGC (ASTM A262, G48).

316L uMbhobho weNtsimbi engatyiwa

316L umbhobho wensimbi engenasiciicaciswa rhoqo kwikloridi-ukuthwala amanzi, inkonzo yekhemikhali ephakathi, kunye nezixhobo zaselwandle-ezikufuphi kuba i-Mo{2}}i-chemistry ezalanayo iphucula ukuxhathisa kwe-pitting xa ithelekiswa ne-304/304L, ngelixa udidi "L" luxhasa ukwenziwa okukhuselekileyo ngokunciphisa ubungozi bokuvalelwa emva kwe-welding.

Ekuthengeni,316L umbhobho wensimbi engenasicikufuneka ichazwe ngu: (1) umgangatho olawulayo (umz., ASTM A312 TP316L), (2) ubungakanani kunye neshedyuli, (3) imeko yomphezulu (pickled/passivated ukuba kufuneka), kunye (4) nokuhlolwa kunye noxwebhu lomda{8}}ngoko umbhobho ohanjisiweyo uhambelana zombini umsebenzi wenkonzo kunye neendlela zokwamkelwa kweplanti.

Umbhobho wensimbi engenasici unikezelwa ngokubanzi njengeengenamthungookanyewelding, kwaye ukhetho olufanelekileyo ludla ngokumiselwa yiumsebenzi (uxinzelelo / ubushushu / i-cyclic ukulayisha), indlela yokwenza, kunye nomda wokuhlola ofunwa yiprojekthi ye-ITP. Ekuthengeni, "i-seamless vs welded" incinci malunga nokukhethwa kwaye ngaphezulu malunga nokuba inkonzo ivumela i-weld seam{1}}kwaye ukuba loo mthungo uyakwamkelwa kwaye ubhalwe njani. Oku kuqhelekile ukuba i-Octal Pipe yenza isakhelo sokukhetha xa ucaphula umxube-ubungakanani bepakethe ezingenanto.

Umbhobho wentsimbi engenamthungoIhlala ikhethwa xa umsebenzi uqina{{0}uxinzelelo oluphezulu, ubushushu obuphezulu, okanye ifuna ibhayisekile eshushu{1}}naxa abathengi befuna umzimba wombhobho olinganayo kwimigca yenkqubo ebalulekileyo. Ikwayindlela esebenzayo yeedayamitha ezininzi ezincinci apho ubukho obungenamthungo bunamandla kwaye i-weld -uphononongo lomthungo longeza ubunzima obungeyomfuneko ekwamkeleni. Iimpawu eziphambili zokukhetha ziquka:

• I-spec/ikhowudi ifuna ngokucacileyo ingenamthungo
• Ubushushu obuphezulu-okanye inkonzo yomjikelo apho uyilo olulondolozayo lukhethwayo
• Ukunyamezelana okuqinileyo{0}}ukulungelelaniswa nespools esele zenziwe

Umbhobho wentsimbi edityanisiweyo(ERW/EFW) iqhele ukukhethelwa iidayamitha ezinkulu, imitsi emide ethe ngqo, kunye neendleko-iiphakheji ezisebenzayo apho iinkcukacha zivumela ulwakhiwo oludityanisiweyo. Apha ugxininiso lokuthengwa kwempahla lutshintshela ekwamkelweni komthungo{2}}ulawulo lwenkqubo ye-weld, umda we-NDT (UT/RT apho kufanelekileyo), kunye neemfuno zemeko yomphezulu (pickling/passivation) ezichaphazela ucoceko olugunyazisiweyo. Kwiiphakheji ezidityanisiweyo, i-Octal Pipe ilungelelanisa umda wokuhlola umthungo kunye namaxwebhu kwindlela eyamkelekileyo yeprojekthi ukuze ukukhutshwa kwesiza kungabambeki ekutolikweni.

Imigangatho eqhelekileyo esetyenziswa kwiiprojekthi ibandakanyaI-ASTM A312(umbhobho we-austenitic stainless),I-ASTM A790(umbhobho ophindwe kabini),I-ASTM A213(iityhubhu zokutshintsha ubushushu)I-ASTM A269(ityhubhu yesixhobo), kunyeI-ASTM A358(enkulu -OD edityanisiweyo umbhobho austenitic).

Ukuba uvavanya aumenzi wepayipi yensimbi engenasici, eyona nto eyahlula umthombo othembekileyo kumngcipheko ngumzi-mveliso-ukuphinda-phinda kwinqanaba:uqinisekiso lwebakala, weld imfezeko (yombhobho odityanisiweyo), uzinzo dimensional, imeko yomphezulu, kunye nokulandeleka. Njengesteel stainless umbhobho umzi-mveliso-umthengisi oxhaswayo ngaphakathiumbhobho steel stainless China, Umbhobho we-Octal umiselwe ukukhulula umbhobho ongenanto ngolawulo ukuba abathengi banokuphicotha kwiiprojekthi zokwenyani{0}}ingakumbi kwiiphakheji ezixubileyo{1}}zebakala apho 304L kunye316L umbhobho wensimbi engenasiciayinakuvunyelwa ukuwela.

Umzi-mveliso wethu{0}}amacala olawulo aquka:

• I-PMI / isiqinisekiso sekhemistri (xa kufuneka):inqanda okungalunganga -kumxube webakala{1}}, umngcipheko oqhelekileyo wokufumana kwizinto zomgca we-304L/316L.
• Ulawulo lomda:OD/WT, ovality, straightness{0}ezi gqiba ukufaneleka{1}}kwesantya sespools ezenziweyo kunye nemitsi emide.
• Ukuqinisekiswa komthungo we-weld (kumbhobho odityanisiweyo):Kwimveliso eqhuba njenge-316L yombhobho wensimbi engenasici, sitshixa iiparamitha ze-weld (ifestile yokufaka ubushushu, isantya sokuhamba, isikhuselo sokhuselo) kwaye silandele uzinzo lomthungo ngokugada{1}}kumgca; iprofayili ye-weld bead ilawulwa kwisiseko sokwamkelwa kweprojekthi (ngokuqhelekileyo ichazwa njengemida yobude be-bead/undercut kunye nokulungelelaniswa njengomsebenzi wobunzima bodonga), kunye nokuphathwa kwe-bead yangaphakathi kulawulwa apho kufuneka khona ukugcina ibhore ihambelana kwimveliso kunye nenkonzo yokuhamba.
• Uqeqesho lwemeko yomphezulu:pickling / passivation kunye neemfuno zokucoceka ezichazwe ukuphepha "ibukeka ilungile, iyasilela kwinkonzo / ukuthuma" izinto ezimangalisayo.
• Thumela ukupakishwa kunye nokukhupha imephu:Kubaumbhobho steel stainless Chinaunikezelo, umngcipheko weprojekthi eqhelekileyo kukuxutywa komgangatho{0}phezulu, umonakalo womphezulu, kunye nokulibaziseka kokukhululwa ekufumaneni. Umbhobho we-Octal unciphisa oku ngokumakishwa okucacileyo, ukhuseleko lwesiphelo, inyanda/ukhetho lokupakisha isakhelo, kunye nokuninzi-okusekwe kukhupho lwepakethi ebonisa imaphu.uphawu lombhobho → MTC → iirekhodi zokuhlola. Isiphumo silula: amabango ambalwa,-ukuhlola kwakhona imijikelo embalwa, kunye nokukhutshwa ngokukhawuleza kwendawo yokugcina{2}}kuba umbhobho ufika njengenkqubo elawulwayo, hayi imfumba yezinto.

Yiyo loo nto abathengi abaninzi bekhangelaumenzi wepayipi yensimbi engenasiciokanyesteel stainless umbhobho umzi-mvelisokwiumbhobho steel stainless ChinaUngakhathali ngamabango enziwe afana nalawo enziwe afana nalawo enziwe ngabenzi bawo kwaye ngaphezulu malunga nokuba umthengisi angasoloko enikezela ngesiphumo esifanayo: ibakala elifanelekileyo (kubandakanywa316L umbhobho wensimbi engenasici), imilinganiselo elungileyo, umphezulu ochanekileyo, kunye nobungqina obufanelekileyo bokuhlola{0}ngaphandle kokuphinda kuthotywe.

Njengomvelisi weMibhobho yeNsimbi eStainless, i-Octal Pipe ikhupha umbhobho ongenanto kunye nemilinganiselo yemveliso elawulwayo, imthungo eqinisekisiweyo yomthungo (apho kufanelekileyo), kunye neerekhodi zokuhlola ezinokulandeleka.

1.Ingenamthungo (SMLS)

• Inkqubo: Ukufudumeza ibhilethi → Ukugqobhoza → Ukuqengqeleka → Ubungakanani → Ukuqhotyoshwa kwesisombululo → Ukuchola → Uvavanyo.
• Benefit: Akukho mthungo we weld, ithembekile-kuxinzelelo oluphezulu kunye nenkonzo ebalulekileyo.

2.I-Welded (ERW/EFW)

• Inkqubo: Ukwenziwa komcwe okanye ipleyiti → Ukuwelda okude/okungqukuva → Ukufakwa kwesisombululo → Ubungakanani → Ukolula.
• Iindlela ze-Welding: ERW / HFI, TIG / GTAW, SAW, EFW kuxhomekeke kwi-OD / WT.
• Benefit: Ixabiso-elisebenzayo, ukufumaneka kobukhulu obubanzi, ukhetho lococeko ngokususa amaso.

3.Kubanda kakhulu (HCW)

• Inkqubo: Ukuncitshiswa okubandayo kumbhobho odityanisiweyo + ukudibanisa.
• Inzuzo: Ukonyuka kwamandla, ukunyamezelana okuqinileyo, ukugqiba okugudileyo.

4.Unyango lobushushu kunye nomphezulu

• Isisombululo se-Annealing: I-1050-1150℃ukucima ngokukhawuleza.
• Iinketho ZokuMphezulu: I-annelled & pickled, i-annelled eqaqambileyo, i-satin{0}}elungisiweyo, isipili{1}}elungisiweyo.

5.Ulawulo lomgangatho

• Uvavanyo lwe-Hydrostatic, i-Eddy yangoku / i-UT, iRadiography kumthungo kunye nomzimba.
• Uvavanyo lomatshini: Ukuqina, isivuno, ubulukhuni, ukucaba / ukuvutha.
• Iimvavanyo ze-corrosion ezikhethiweyo: i-ASTM A262 (IGC), i-ASTM G48 (i-pitting).

Xa imithombo yomthengiumbhobho steel stainless China, oyena mngcipheko awuyiyo "ingaba isisila singenza i-stainless"{0}}kukuba umthengisi angakwazibamba ibakala + ubungakanani + ubume bomphezulungokuqhubekayo kwiphakheji epheleleyo. Inkqubo ye-Octal Pipe ye-stainless yakhiwe malunga naloo nyaniso: iityhubhu ezingenamthungo zoluhlu olungqongqo lwe-OD kunye nomgangatho olawulwayo, kunye nombhobho odityanisiweyo weedayamitha ezinkulu, zonke zikhutshwe kwindlela yomzi-mveliso edibanisa ukuqengqeleka / umzobo, unyango lobushushu, ukulungiswa, kunye nokuchola kumgca omnye.

Oku kuthetha ntoni kwi-PO yokwenyani ilula. Ukuba iprojekthi ifuna316L umbhobho wensimbi engenasici(ihlala ixutywe ne 304L/321 okanye iduplex), iOctal Pipe ingagcina ipakethe icocekile ngokuvelisa ngaphakathi kwe OD iifestile{2}}ngaphandle komthungo ukuya kuthi ga.Φ630 mmkwaye welding ukuyaΦ2620 mm, nobukhulu bodonga ngokuqhelekileyo1–35 mm-ngoko ke ubungakanani alunyanzeli "iindlela zokusebenza" phakathi-kucaphulo. Kwicala lokwenziwa, indlela{3}iqhutywa zizixhobo: a280 ilitye lokusila + ukuxobula, ngokoukuqengqeleka okubandayo/umzobo obandayo, ilandelwe ngukwendalo-ukukhutshwa kwerhasikwayeukukhaukulungiswa komphezulu, kwaye ekugqibeleniukulungisangaphambi kokukhululwa. Elotsheyina lenkqubo lilo elixhasa ukuzinza{1} phezulu kunye nokuziphatha okuqikelelwayo kokwenziwa, hayi nje igama lebakala ephepheni.

Imigangatho kunye namabakala agutyungelwe ngendlela ii-EPCs ezithenga ngayo: imibhobho eqhelekileyo / iityhubhu ukuyaI-ASTM/ASME (A312/A213/A269; A789/A790), kunyeEN (10216-5/10216-2), DIN (17456/17458), JIS (G3459/G3463), GOST (9941/5632), kunye ne-GB (14975/14976, 13296, 5310, 9948). Ukufumaneka kwebakala ngokuqhelekileyo kubandakanya iintsapho ze-austenitic (TP304/304L, TP316/316L, TP321, TP347, TP310S, TP317L, 904L), i-duplex/super duplex (S31803/S32205/S32750 i-nickel ekhethiweyo), (N08825/N08904/N08028/N08800). Ngokufutshane: aumenzi wepayipi yensimbi engenasiciisakhono esigubungela zombini "isityalo semihla ngemihla esingenasici" kunye nomhlwa{0}}iipakethe ezibalulekileyo, kunye nomzila wefektri wombhobho wentsimbi engatyiwayo onokugcina imveliso ihambelana kwiidayamitha kunye nemigangatho.

Qhagamshelana ngoku

FAQ

 

 

Q:304 vs 316L umbhobho wentsimbi engatyiwayo - yeyiphi endimele ndiyichaze?

A: Ukuba umgca uza kubonaiikloridi(amanzi apholileyo, ukuhlamba, umoya wonxweme, i-brine splash),316/316Liqhele ukucaciswa kuba imolybdenum iphucula ukuxhathisa kwimingxuma yendawo/uhlaselo lokuqhekeka xa kuthelekiswa ne-304-series.316Lidla ngokukhethwa kwi-spools ezidityanisiweyo ukunciphisa umngcipheko wokuvuselela emva kwe-welding.

Q:ASTM A312 vs ASTM A213 vs ASTM A269 - yintoni umahluko (umbhobho vs ityhubhu)?

A:Cinga "inkonzo + ifom yemveliso":I-ASTM A312ayinabalaumbhobhokubaphezulu-ubushushu kunye nenkonzo edlayo jikelele (engenamthungo okanye iweldiwe).I-ASTM A213yiengenamthungoibhoyila/iheater/ishushu-umtshintshisiimibhobho, kwayeI-ASTM A269ayinabalaimibhobho(ingenamthungo okanye iweldiwe) ukwenzela umhlwa jikelele{0}}ukumelana, okusezantsi/phezulu{1}}inkonzo yobushushu.

Q:Ingenamthungo vs i welded umbhobho wentsimbi engenakutyiwa - ndingakhetha njani ngaphandle kokungaphezulu{1}}ukucacisa?

A: Khethaengenamthungoxa umsebenzi okanye i-spec iqina ngakumbi (uxinzelelo oluphezulu/ubushushu, ukukhwela ibhayisekile okuqatha, okanye “kuyimfuneko engenamthungo”. Khethaweldingxa i-spec ivumela kwaye iprojekthi izuza kwi-OD/WT ezinzileyo kunye nokufumaneka{0}}kwaye ulawule umngcipheko ngokuchazaumthungo NDT ububanzi(UT / RT / ET nge-ITP) kunye neemfuno zomgangatho ophezulu kwi-PO.

Umbuzo: Ndingenza njani ukuba ndifanelekele umenzi wepayipi yensimbi engenasici / ifektri e-China ngaphambi kokubeka i-PO?

A: Cela iEN10204 3.1isatifikethi esibotshelelwe kwiqashiso elinikiweyo (iziphumo zovavanyo + ingxelo yothotyelo), kwaye sifuna ukulandeleka ukusukauphawu lombhobho → MTC → iirekhodi zokuhlola; yongeza i-PMI apho ibakala -umngcipheko wokuxuba uphezulu (umz., 304L + 316 iipakethe ze-L). Le yeyona ndlela ikhawulezayo yokususa -umngcipheko "kwimibhobho yentsimbi estainless China" kwaye unqande ukufumana{7}}ukulibaziseka kokukhutshwa.

Iziqinisekiso

 

Isatifikethi seCE

Isatifikethi se-ISO 9001

Isatifikethi se-API Q1

Isatifikethi se-ABS

Isatifikethi se-AP-5L

Isatifikethi se-API-5CT

 

OD:6 mm - 1200 mm

Ukutyeba kweendonga:0.3 – 50 mm (SCH 5S ukuya XXS)

Ubude:6m, 12m, 20FT, 40FT, ukusika ngokwesiko

Iphela:Ibeveled, icacile, ithungelwe ngemisonto

Ukugqitywa komphezulu:A/P, BA, ipolishiwe, isipili

Iifayile ezishisayo: umbhobho wentsimbi, China abenzi imibhobho steel stainless, ababoneleli, umzi-mveliso