I-ASTM A335 P5, ekwaziwa ngokuba yi-ASME SA335 P5, ngumbhobho wentsimbi engenamthungo ophantsi owenzelwe inkonzo yobushushu obuphezulu.
I-P5 iqulethe i-4.00 ~ 6.00% ye-chromium kunye ne-0.45 ~ 0.65% ye-molybdenum, enika amandla kunye nokusebenza okugqwesileyo phantsi kobushushu obuphezulu kunye noxinzelelo. Isetyenziswa kakhulu kwizixhobo ezifana neebhoyila, ii-superheater, kunye nee-heat exchangers.
Igama layo le-UNS yi-K41545.
Umenzi kunye neMeko
Imibhobho yentsimbi ye-ASTM A335 P5 mayiyenziwe ngenkqubo engenamthungo kwaye mayigqitywe ngobushushu okanye itsalwe kubanda, njengoko kuchaziwe.
Iipayipi ezigqityiweyo zishushu ziipayipi zentsimbi ezingenamthungo ezenziwe ngeebhilethi ngeenkqubo zokufudumeza nokuqengqeleka, ngelixa iipayipi ezitsalwa ngokubandayo ziyipayipi zentsimbi ezingenamthungo eziveliswa ngokutsala iipayipi ezigqityiweyo ezishushu kubushushu begumbi.
Ukuba ungathanda ukufunda okungakumbi malunga neenkqubo zokwenziwa kwezi ntlobo zimbini zemibhobho yentsimbi engenamthungo, ungacofa“Yintoni i-Seamless Steel Pipe?"ukuze ufumane iinkcukacha ezithe vetshe.
Unyango lobushushu
Imibhobho ye-ASTM A335 P5 kufuneka ifudunyezwe ukuze inyangwe ubushushu kwaye inyangwe ubushushu yiukufakelwa kwe-annealing epheleleyo okanye engathathi hlangothi or ukulungisa kunye nokulungisa.
Iimfuno ezithile ziboniswe kwitheyibhile engasezantsi:
| Ibanga | Uhlobo lokunyanga ubushushu | Ubushushu okanye i-Subcritical Annealing |
| I-ASTM A335 P5 | i-anneal epheleleyo okanye engathathi hlangothi | — |
| ukwenza izinto zibe zesiqhelo kunye nobushushu | 1250 ℉ [675 ℃] umzuzu |
Imisebenzi ebandakanya ukufudumeza imibhobho yentsimbi ngaphezu kobushushu bayo obubalulekileyo, njengokuwelda, ukuflanga, kunye nokugoba okushushu, kufuneka ilandelwe lunyango olufanelekileyo lobushushu.
Iindlela zokuvavanya ukwakheka kweekhemikhali kunye neempawu zoomatshini zemibhobho yentsimbi ye-P5 kufuneka zihambelane nemigaqo efanelekileyo ye-ASTM A999.
| Ibanga | Ulwakhiwo, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | Ubuninzi obuyi-0.15 | 0.30 ~ 0.60 | Ubuninzi obuyi-0.025 | Ubuninzi obuyi-0.025 | Ubuninzi obuyi-0.50 | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Iipropati zokuThatha
| Ibanga | Tensile strength | Unikeze Amandla | Ukwandiswa kwiisentimitha ezi-2 okanye ezingama-50 mm |
| P5 | 60 ksi [415 MPa] min | 30 ksi [205 MPa] min | 30% imizuzu |
Iipropati zoBulukhuni
Umgangatho we-ASTM A335 awuchazi naziphi na iimfuno zobunzima kwimibhobho yentsimbi ye-P5.
Uvavanyo lokuTyatya
Uvavanyo lokuthamba kufuneka lwenziwe kwaye luthathwe iisampulu ngokuhambelana neemfuno ezifanelekileyo ze-ASTM A999, kwaye iziphelo zepayipi ezinqunqiweyo zingasetyenziswa njengeesampuli.
Uvavanyo lwe-Bend
Kwipayipi enobubanzi obungaphezulu kwe-NPS 25 kwaye enomlinganiselo wobubanzi bodonga obuyi-7.0 okanye ngaphantsi, kufuneka kuhlolwe ukugoba endaweni yovavanyo lokuthamba.
Iisampulu zovavanyo lokugoba mazigotywe kubushushu begumbi ukuya kuthi ga kwi-180° ngaphandle kokuqhekeka ngaphandle kwenxalenye egobileyo. Ububanzi bangaphakathi bokugoba mabube yi-1 intshi. [25 mm].
Inkangeleko
Umphezulu wombhobho wentsimbi kufuneka uthambe kwaye ulingane, ungabi nazikhwebu, imithungo, imiphetho, ukukrazuka, okanye amaqhekeza.
Ukuba ubunzulu baso nasiphi na isiphene budlula i-12.5% yobukhulu bodonga obuqhelekileyo okanye ukuba ubukhulu bodonga obuseleyo bungaphantsi kobukhulu obumiselweyo, indawo iya kuthathwa njengenesiphene.
Xa ubukhulu bodonga obuseleyo busengaphakathi kwemida echaziweyo, isiphene singasuswa ngokusila.
Ukuba ubukhulu bodonga oluseleyo bungaphantsi kwemfuneko encinci, isiphene kufuneka silungiswe ngokuwelda okanye sisuswe ngokusika.
Ukunyamezelana kobubanzi
Kwimibhobho e-odolwe yi-NPS [DN] okanye ububanzi bangaphandle, utshintsho kububanzi bangaphandle aluyi kudlula iimfuno eziboniswe kwitheyibhile engasezantsi:
| Umyili we-NPS [DN] | Iinguqu Ezivumelekileyo | |
| ngaphakathi. | mm | |
| I-intshi eyi-1/8 ukuya kwi-1 1/2 [6 ukuya kwi-40]. | ±1/64 [0.015] | ± 0.40 |
| Ngaphezulu kwe-1 1/2 ukuya kwi-4 [40 ukuya kwi-100], intshi. | ±1/32 [0.031] | ± 0.79 |
| Ngaphezulu kwe-4 ukuya kwi-8 [100 ukuya kwi-200], intshi. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Ngaphezulu kwe-8 ukuya kwi-12 [200 ukuya kwi-300], intshi. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| Ngaphezulu kwe-12 [300] | ±1 % yobubanzi obungaphandle obuchaziweyo | |
Kwimibhobho ecwangciswe ngobubanzi obungaphakathi, ububanzi obungaphakathi abuyi kwahluka ngaphezu kwe-1% ukusuka kububanzi obungaphakathi obuchaziweyo.
Ukunyamezelana koBungqingqwa bodonga
Ukongeza kumda ongacacanga wobukhulu bodonga lombhobho obubekwe ngumda wobunzima kwi-ASTM A999, ubukhulu bodonga lombhobho nangaliphi na ixesha buya kuba ngaphakathi kokunyamezelana okuchazwe kwitheyibhile engezantsi:
| Umyili we-NPS [DN] | Ukunyamezelana, ifomu % Ichaziwe |
| 1/8 ukuya ku-2 1/2 [6 ukuya ku-65] kubandakanya zonke iireyithi ze-t/D | -12.5 - +20.0 |
| Ngaphezulu kwe-2 1/2 [65], t/D ≤ 5% | -12.5 - +22.5 |
| Ngaphezulu kwe-2 1/2, t/D ＞ 5% | -12.5 - +15.0 |
| t = Ubukhulu Bodonga Oluchaziweyo; D = Ububanzi Bangaphandle Obuchaziweyo. | |
Iipayipi zentsimbi ze-ASTM A335 P5 zisetyenziswa kakhulu kwiinkqubo zepayipi ezisebenza phantsi kweemeko zobushushu obuphezulu kunye noxinzelelo oluphezulu.
Ngenxa yokumelana kwazo nobushushu obuphezulu kunye neempawu zazo zoomatshini, zisetyenziswa kakhulu kumashishini e-petrochemical, ukuveliswa kwamandla, kunye neefektri.
Izicelo ezithile ziquka:
- Imibhobho yebhoyila
- Izitshintshi zobushushu
- Imigca yenkqubo ye-Petrochemical
- Imibhobho yesityalo sombane
- Iinqanawa zoxinzelelo lwebhoyila
| I-ASME | I-ASTM | EN | I-JIS |
| I-ASME SA335 P5 | I-ASTM A213 T5 | EN 10216-2 X11CrMo5+I | I-JIS G 3458 STPA25 |
Izixhobo:imibhobho yentsimbi engenamthungo ye-ASTM A335 P5 kunye nezixhobo;
Ubungakanani:1/8" ukuya kuma-24", okanye wenze ngokwezifiso ngokweemfuno zakho;
Ubude:Ubude obungacwangciswanga okanye obunqunyiweyo ngokwe-odolo;
Ukupakisha:Umbala omnyama, iziphelo ezibengezelayo, izikhuseli zemibhobho, iikreyithi zomthi, njl.njl.
Inkxaso:Isatifikethi se-IBR, ukuhlolwa kwe-TPI, i-MTC, ukusika, ukucubungula, kunye nokwenza ngokwezifiso;
I-MOQ:1 m;
Immimiselo yokuhlawula:I-T/T okanye i-L/C;
Ixabiso:Nxibelelana nathi ukuze ufumane amaxabiso amva nje eepayipi zentsimbi ze-T11.
