ASTM A213 T91(ASME SA213 T91) ipombi yesimbi isina musono inoshandiswa zvakanyanya ine 8.0% kusvika 9.5% Cr, 0.85% kusvika 1.05% Mo, nezvimwe zvinhu zve microalloying.
Izvi zvinowedzera alloying zvinopa machubhu esimbi eT91 simba rakanaka kwazvo rekupisa kwepamusoro-soro, kuramba kukambaira, uye kuramba kuoxidation, zvichiita kuti ashandiswe zvakanyanya mumaboilers, masuperheaters, uye ma heat exchangers anoshanda mumamiriro ekupisa kwakanyanya uye kumanikidzwa kwakanyanya.
Nhamba yeUNS: K90901.
Mapaipi esimbi eT91 anogona kupatsanurwa kuitaRudzi 1uyeRudzi rwechipiri, musiyano mukuru uri kugadziriswa kudiki mukugadzirwa kwemakemikari.
Rudzi rwechipiri rune zvinodiwa zvakanyanya zvemakemikari; semuenzaniso, huwandu hweS hunoderedzwa kubva pa0.010% muRudzi rwekutanga kusvika pa0.005%, uye miganhu yepamusoro neyepasi yezvimwe zvinhu inogadziriswawo.
Rudzi rwechipiri rwakagadzirirwa zvakanyanya nzvimbo dzinopisa zvakanyanya kana dzinopisa zvakanyanya, zvichiita kuti dzive dzakasimba uye dzisanyanya kukwira.
Tevere, ngatinyatsoongorora zvinodiwa pakuumbwa kwemakemikari emhando yekutanga neyechipiri mukuongorora kwechigadzirwa.
| Kuumbwa, % | ASTM A213 T91 Rudzi 1 | ASTM A213 T91 Rudzi rwechipiri |
| C | 0.07 ~ 0.14 | 0.07 ~ 0.13 |
| Mn | 0.30 ~ 0.60 | 0.30 ~ 0.50 |
| P | 0.020 yakakwira | |
| S | 0.010 yakakwira | 0.005 yepamusoro |
| Si | 0.20 ~ 0.50 | 0.20 ~ 0.40 |
| Ni | 0.40 yakakwira | 0.20 yakakwira |
| Cr | 8.0 ~ 9.5 | |
| Mo | 0.85 ~ 1.05 | 0.80 ~ 1.05 |
| V | 0.18 ~ 0.25 | 0.16 ~ 0.27 |
| B | — | 0.001 yepamusoro |
| Nb | 0.06 ~ 0.10 | 0.05 ~ 0.11 |
| N | 0.030 ~ 0.070 | 0.035 ~ 0.070 |
| Al | 0.02 yakakwira | 0.020 yakakwira |
| W | — | 0.05 yakakwira |
| Ti | 0.01 yepamusoro | |
| Zr | 0.01 yepamusoro | |
| Zvimwe Zvinhu | — | Cu: 0.10 yakakwira Sb: 0.003 yakakwira Sn: 0.010 yakakwira Sezvo: 0.010 max N/Al: 4.0 maminitsi |
Mhando yeT91 Type 1 ne2 dzine musiyano mudiki mukugadzirwa kwemakemikari, asi dzine zvinodiwa zvakafanana zvehunhu hwemakanika uye kurapwa kwekupisa.
Zvivakwa zveKusimba
| Giredhi | Simba reKusimba | Simba reGoho | Kureba mu 2 in. kana 50 mm |
| T91 Rudzi 1 ne2 | 85 ksi [585 MPa] miniti | 60 ksi [415 MPa] miniti | 20% maminiti |
Zvimiro zveKuoma
| Giredhi | Brinell / Vickers | Rockwell |
| T91 Rudzi 1 ne2 | 190 kusvika 250 HBW 196 kusvika 265 HV | 90 HRB kusvika 25 HRC |
Muedzo weKubata-bata
Nzira yekuyedza inofanira kutevedzera zvinodiwa neChikamu 19 cheASTM A1016.
Kuedza kumwe chete kwekutsetseka kunofanira kuitwa pamienzaniso kubva kumagumo ese echubhu imwe yakapedzwa, kwete iyo inoshandiswa pakuedza kupenya, kubva muchikamu chimwe nechimwe.
Muedzo weKupisa
Nzira yekuyedza inofanira kutevedzera zvinodiwa neChikamu 22 cheASTM A1016.
Kuedza kumwe chete kwekupfura kunofanira kuitwa pamienzaniso kubva kumagumo ese echubhu imwe chete yakapedzwa, kwete iyo inoshandiswa pakuedza kupeterera, kubva muchikamu chimwe nechimwe.
Mugadziri uye Mamiriro
Machubhu eASTM A213 T91 anofanira kugadzirwa nenzira isina musono uye anofanira kunge akagadzirwa nekupisa kana kutonhora, sezvinodiwa.
Mapaipi esimbi asina musono, nechimiro chayo chinogara kwenguva refu uye chisina weld, inopa kushushikana zvakaenzana pasi pekupisa kwakanyanya, kumanikidzwa kwakanyanya, uye mamiriro akaomarara ekutakurisa, zvichipa simba rakakwirira, kusimba, uye kuramba kuneta.
Kurapa Kupisa
Mapaipi ese esimbi eT91 anofanira kudziiswazve uye kugadziriswa kupisa zvichienderana nezvinodiwa zvakataurwa mutafura.
Kurapa kupisa kunofanira kuitwa zvakasiyana uye pamwe nekudziisa kuti kuite kupisa.
| Giredhi | Rudzi rwekupisa | Kurapa Kwekusimbisa / Kugadzirisa Mhinduro | Kupisa kana Kupisa Kusina Kukosha |
| T91 Rudzi 1 ne2 | kugadzirisa uye kushatirwa | 1900 - 1975 ℉ [1040 - 1080 ℃] | 1350 - 1470 ℉ [730 - 800 ℃] |
Pazvinhu zvemhando yeGredhi T91 Type 2, kurapwa kwekupisa kunofanira kuita kuti mushure mekusimbiswa, mwero wekutonhora kubva pa1650 °F kusvika 900 °F [900 °C kusvika 480 °C] haunonoke kupfuura 9 °F/min [5 °C/min].
Saizi dzemachubhu eT91 uye ukobvu hwemadziro zvinowanzo shongedzwa nedhayamita dzemukati dzinotangira pa3.2 mm kusvika padhayamita dzekunze dze127 mm, uye ukobvu hwemadziro hushoma kubva pa0.4 mm kusvika pa12.7 mm.
Mamwe mapombi esimbi eT91 anogonawo kupihwa, chero bedzi zvimwe zvese zvinodiwa zveASTM A213 zvazadzikiswa.
Kushivirira kweT91 kwakafanana nekweT11. Kuti uwane rumwe ruzivo, unogona kutarisa kuZviyero zveT11 uye Kushivirira.
| UNS | ASME | ASTM | EN | GB |
| K90901 | ASME SA213 T91 | ASTM A335 P91 | EN 10216-2 X10CrMoVNb9-1 | GB/T 5310 10Cr9Mo1VNbN |
Chigadzirwa:ASTM A213 T91 Mapaipi esimbi asina musono emhando 1 ne2 ane musono uye zvinosungirirwa;
Saizi:1/8" kusvika 24", kana kuti yakagadzirirwa zvinoenderana nezvaunoda;
Kureba:Kureba kusingatarisirwi kana kuchekwa zvichienderana nekuraira;
Kurongedza:Kupfeka kwakasviba, magumo akachekwa, zvidziviriro zvemapombi, mabhokisi emapuranga, nezvimwewo.
Tsigiro:Chitupa cheIBR, kuongororwa kweTPI, MTC, kucheka, kugadzirisa, uye kugadzirisa;
MOQ: (Zvinyorwa zveMOQ):1 m;
Mitemo Yekubhadhara:T/T kana L/C;
Mutengo:Tibatei kuti muwane mitengo yemapaipi esimbi eT91 yazvino.
