Kwi-ASTM A213, ukongeza kwiimfuno zeepropathi zokuqina kunye nobunzima, iimvavanyo ezilandelayo nazo ziyafuneka: Uvavanyo lwe-Flattening kunye noVavanyo lwe-Bend.
I-ASTM A335 P22(ASME SA335 P22) yinkonzo yobushushu obuphezulu engenamthungo chromium-molybdenum ingxubevange umbhobho wentsimbi, esetyenziswa ngokubanzi kwi.iibhoyila, izifudumezi ezinkulu, kunye nobushushuabatshintshisi.
Iqulethe 1.90%ukuya kwi-2.60% yechromium kunye ne-0.87% ukuya kwi-1.13% ye-molybdenum, inokumelana nobushushu obugqwesileyo, kwaye ifanelekile ukugoba, ukugoba, okanye ukwenza imisebenzi efanayo.
Inombolo ye-UNS: K21590.
I-ASTM A335 luphawu olusemgangathweni lwemibhobho yentsimbi engenamthungo ye-ferritic alloy-steel elungiselelwe inkonzo yobushushu obuphezulu. Isetyenziswa ngokubanzi kwiibhoyili, ii-superheaters, i-heat exchangers, kunye nezinye izicelo ezisebenza phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu. Ukongeza kwiBanga le-P22, amanye amabakala e-alloy aqhelekileyo abandakanyaI-P5 (UNS K41545), I-P9 (UNS K90941), I-P11 (UNS K11597), kwayeI-P91 (UNS P90901).
Umenzi kunye nemeko
Imibhobho yentsimbi ye-ASTM A335 P22 iya kwenziwa ngenkqubo engenamthungo kwaye iyakugqitywa kushushu okanye itsalwe ngokubanda ngonyango lokugqiba.
Imibhobho yentsimbi engenamthungoyimibhobho ngaphandle kwe-welds, enika iipayipi zensimbi ze-P22 ngokuzinza okuphezulu kunye nokuthembeka kwindawo yokushisa ephezulu kunye noxinzelelo oluphezulu.
Unyango lobushushu
Imibhobho yentsimbi ye-P22 iya kufudunyezwa kwakhona kwaye iphathwe ubushushu ngokuthi kufakwe i-annealing epheleleyo, ngokufakwa kwe-isothermal, okanye ukufudumeza okanye ukufudumeza.
| IBanga | Uhlobo lokunyanga ubushushu | I-Subcritical Annealing okanye iqondo lobushushu |
| I-ASTM A335 P22 | i-anneal epheleleyo okanye ye-isothermal | - |
| lungelelanisa kwaye ube nomsindo | 1250 ℉ [675 ℃] imiz |
I-Chromium (i-Cr) kunye ne-molybdenum (i-Mo) zizinto eziphambili ze-alloying kwi-P22 yensimbi, ukuphucula amandla aphezulu okushisa, ukuchasana kwe-oxidation, kunye nokuqina. Ukwakhiwa kweekhemikhali ezithile kuboniswe ngezantsi:
| IBanga | Ukuqamba, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P22 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 ubuninzi | 0.025 ubuninzi | 0.50 ubuninzi | 1.90 ~ 2.60 | 0.87 ~ 1.13 |
Uvavanyo lwepropathi yoomatshini lweP22 luya kwenziwa ngokuhambelana neemfuno ezifanelekileyo ze-ASTM A999.
Iipropati ze-Tensile
| IBanga | I-ASTM A335 P22 | |
| Amandla okuqina, min | 60 ksi [415 MPa] | |
| Amandla esivuno, min | 30 ksi [205 MPa] | |
| Ukwandiswa kwi-2 in. okanye 50 mm (okanye 4D), min | Ixesha elide | Ukunqamleza |
| Ubuncinane bobude obusisiseko kudonga 5/16 ngo [8 mm] nangaphezulu kubukhulu, iimvavanyo zemicu, nakuzo zonke iisayizi ezincinci ezivavanyiweyo kwicandelo elipheleleyo. | 30% | 20% |
| Xa umjikelo oqhelekileyo 2 okanye 50 mm ubude gage okanye ngokomlinganiselo omncinane ubungakanani umboniso kunye nobude gage elilingana 4D (amaxesha 4 ububanzi) kusetyenziswa. | 22% | 14% |
| Kwiimvavanyo zestriphu ukutsalwa kwe-1/32 nganye kwi- [0.8 mm] ukuhla kobunzima bodonga ngaphantsi kwe-1/32 in. | 1.50% | 1.00% |
Iimpawu zokuqina
Umgangatho we-ASTM A335 awucacisi iimfuno ezithile zobunzima kwimibhobho yensimbi ye-P22.
Ezinye izinto zovavanyo
Ukunyamezela kwe-Diameter
Kumbhobho oodolwe yiNPS [DN] okanye idiameter yangaphandle, umahluko kwidayamitha yangaphandle ayisayi kudlula iimfuno eziboniswe kwitheyibhile engezantsi:
| NPS [DN] uMyili | Ukwahluka okuvumelekileyo | |
| kwi. | mm | |
| 1/8 ukuya 1 1/2 [6 ukuya 40], intshi. | ±1/64 [0.015] | ±0.40 |
| Ngaphezulu kwe-1 1/2 ukuya ku-4 [40 ukuya kwi-100], i-intshi. | ±1/32 [0.031] | ±0.79 |
| Ngaphezulu kwe-4 ukuya kwi-8 [100 ukuya kuma-200], i-intshi. | -1/32 - +1/16 [-0.031 - +0.062] | -0,79 - +1,59 |
| Ngaphezulu kwesi-8 ukuya kwi-12 [200 ukuya kuma-300], i-intshi. | -1/32 - +3/32 [-0.031 - 0.093] | -0,79 - +2,38 |
| Ngaphezulu kwe-12 [300] | ±1 % yedayamitha yangaphandle echaziweyo | |
Ngombhobho oyalwe ukuba ungene ngaphakathi, i-diameter yangaphakathi ayiyi kuhluka ngaphezu kwe-1% ukusuka kwi-diameter yangaphakathi echaziweyo.
Unyamezelo lokutyeba kodonga
Ukongeza kwisithintelo esicacileyo sobunzima bodonga lombhobho obekwe sisithintelo sobunzima kwi-ASTM A999, ubukhulu bodonga lombhobho kuyo nayiphi na indawo buya kuba phakathi konyamezelo oluchazwe kwitheyibhile engezantsi:
| NPS [DN] uMyili | Ukunyamezelana |
| I-1/8 ukuya kwi-2 1/2 [6 ukuya ku-65] iquka. yonke imilinganiselo ye-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 % |
| ASME | I-ASTM | EN | I-DIN | I-JIS |
| ASME SA335 P22 | I-ASTM A213 T22 | I-DIN 10216-2 10CrMo9-10 | I-DIN 17175 10CrMo9-10 | JIS G 3458 STPA25 |
Izinto:I-ASTM A335 P22 imibhobho yentsimbi engenamthungo kunye nezixhobo;
Ubungakanani:1/8 "ukuya kuma-24", okanye ilungiselelwe ngokweemfuno zakho;
Ubude:Ubude obungacwangciswanga okanye ukusika ukuze kulandelelwe;
Ukupakishwa:Ukugquma okumnyama, iziphelo ezigudileyo, izikhuseli zokuphela kombhobho, iikhreyithi zokhuni, njl.
Inkxaso:Ukuqinisekiswa kwe-IBR, ukuhlolwa kwe-TPI, i-MTC, ukusika, ukusetyenzwa, kunye nokwenza ngokwezifiso;
MOQ:1 m;
Immimiselo yokuhlawula:T/T okanye L/C;
Ixabiso:Qhagamshelana nathi ngamaxabiso emibhobho yentsimbi yamva nje T11;
