ASTM A213 T91Ko te (ASME SA213 T91) he paipa maitai kore hononga, he mea hanga ki te koranu ferritic, kei roto ko te 8.0% ki te 9.5% Cr, 0.85% ki te 1.05% Mo, me ētahi atu huānga koranu moroiti.
Mā ēnei tāpiritanga koranu ka whakaratohia he kaha pāmahana teitei, he ātete ngokingoki, he ātete waikura pai rawa atu ki ngā ngongo maitai T91, ā, ka whakamahia whānuitia i roto i ngā kohua, ngā whakamahana nui, me ngā whakawhiti wera e mahi ana i raro i ngā āhuatanga pāmahana teitei me te pēhanga teitei.
Nama UNS: K90901.
Ka taea te whakarōpū i ngā paipa maitai T91 kiMomo 1meMomo 2, ko te rerekētanga matua ko ngā whakarerekētanga iti o te hanganga matū.
He tino kaha ake ngā whakaritenga mō ngā huānga matū o te Momo 2; hei tauira, ka whakaitihia te ihirangi S mai i te mōrahi o te 0.010% i te Momo 1 ki te mōrahi o te 0.005%, ā, ka whakatikatikaina hoki ngā rohe o runga me raro o ētahi atu huānga.
Ko te Momo 2 e hangaia ana mō ngā taiao pāmahana teitei, taiao waikura rānei, ā, e whakarato ana i te pakari me te ātete ngoki.
Muri iho, me titiro matatau tātou ki ngā whakaritenga hanganga matū mō te Momo 1 me te Momo 2 i roto i te tātaritanga hua.
| Te hanganga, % | ASTM A213 T91 Momo 1 | ASTM A213 T91 Momo 2 |
| C | 0.07 ~ 0.14 | 0.07 ~ 0.13 |
| Mn | 0.30 ~ 0.60 | 0.30 ~ 0.50 |
| P | 0.020 mōrahi | |
| S | 0.010 mōrahi | 0.005 mōrahi |
| Si | 0.20 ~ 0.50 | 0.20 ~ 0.40 |
| Ni | 0.40 mōrahi | 0.20 mōrahi |
| 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 mōrahi |
| Nb | 0.06 ~ 0.10 | 0.05 ~ 0.11 |
| N | 0.030 ~ 0.070 | 0.035 ~ 0.070 |
| Al | 0.02 mōrahi | 0.020 mōrahi |
| W | — | 0.05 mōrahi |
| Ti | 0.01 mōrahi | |
| Zr | 0.01 mōrahi | |
| Ngā Huānga Kē | — | Cu: 0.10 mōrahi Sb: 0.003 mōrahi Sn: 0.010 mōrahi Hei: 0.010 mōrahi Kore/Ārai: 4.0 meneti |
He iti noa ngā rerekētanga matū o te Momo T91 1 me te Momo T91 2, engari he rite tonu ngā whakaritenga mō ngā āhuatanga hangarau me te maimoatanga wera.
Ngā Āhuatanga Kume
| Tau | Kaha Kume | Te Kaha o te Hua | Te whakaroa i roto i te 2 inihi, 50 mm rānei |
| Momo T91 1 me te 2 | 85 ksi [585 MPa] min | 60 ksi [415 MPa] min | 20% meneti |
Ngā Āhuatanga Pakari
| Tau | Brinell / Vickers | Rockwell |
| Momo T91 1 me te 2 | 190 ki te 250 HBW 196 ki te 265 HV | 90 HRB ki te 25 HRC |
Whakamātautau Whakapapatahi
Me tutuki te tikanga whakamātautau i ngā whakaritenga e tika ana o te Wāhanga 19 o ASTM A1016.
Me mahi tētahi whakamātautau whakatārewatanga ki ngā tauira mai i ia pito o te ngongo kua oti te hanga, kaua ki te mea e whakamahia ana mō te whakamātautau mura, mai i ia rota.
Whakamātautau Mura
Me tutuki te tikanga whakamātautau i ngā whakaritenga e tika ana o te Wāhanga 22 o ASTM A1016.
Me mahi tētahi whakamātautau mura ki ngā tauira mai i ia pito o te ngongo kua oti te hanga, kaua ki te mea e whakamahia ana mō te whakamātautau papatahi, mai i ia puranga.
Kaihanga me te Āhua
Me hanga ngā ngongo ASTM A213 T91 mā te tukanga tuimotu, ā, me whakaoti wera, me whakaoti matao rānei, e ai ki te hiahia.
Ngā paipa maitai kore-tuitui, me tōna hanganga tonu, kāore he whakarewa, ka tohatohahia te ahotea kia ōrite i raro i te pāmahana teitei, te pēhanga teitei, me ngā āhuatanga kawenga uaua, e whakarato ana i te kaha, te pakari, me te ātete ki te ngenge.
Te Maimoatanga Wera
Me whakamahana anō ngā paipa maitai T91 katoa, ā, me whakamahana anō kia rite ki ngā whakaritenga kua tohua i roto i te ripanga.
Me mahi motuhake te maimoatanga wera, me te whakamahana anō hoki mō te hanga wera.
| Tau | Momo maimoatanga wera | Te Whakapūmautanga Austenitizing / Te Maimoatanga Otinga | Te Whakamahana, te Pāmahana rānei i raro i te Hiranga |
| Momo T91 1 me te 2 | whakataurite me te whakangāwari | 1900 - 1975 ℉ [1040 - 1080 ℃] | 1350 - 1470 ℉ [730 - 800 ℃] |
Mō ngā rauemi Momo 2 o te Tau T91, me whakarite te maimoatanga wera kia kaua e puhoi ake te tere o te whakamatao mai i te 900 °C ki te 480 °C i te 9 °F/min [5 °C/min] i muri i te whakaaustenititanga.
Ko ngā rahi o ngā ngongo T91 me ngā matotoru o te pakitara he mea whakarite kia rerekē ngā diameter o roto mai i te 3.2 mm ki te diameter o waho o te 127 mm, ā, ko te matotoru iti rawa o te pakitara mai i te 0.4 mm ki te 12.7 mm.
Ka taea hoki te tuku atu i ētahi atu rahi o ngā paipa maitai T91, ki te tutukihia ngā whakaritenga katoa o te ASTM A213.
He rite tonu ngā ātete ā-ahu o T91 ki ērā o T11. Mō ētahi atu kōrero, tirohia teNgā Ahu me ngā Ātete T11.
| UNS | ASME | ASTM | EN | GB |
| K90901 | ASME SA213 T91 | ASTM A335 P91 | EN 10216-2 X10CrMoVNb9-1 | GB/T 5310 10Cr9Mo1VNbN |
Hua:Ngā paipa me ngā hononga maitai koranu tui ASTM A213 T91 Momo 1 me te Momo 2;
Rahi:1/8" ki te 24", ka taea rānei te whakarite kia rite ki ō hiahia;
Roa:Te roa matapōkere, te tapahi rānei kia rite ki te tono;
Tākai:He paninga pango, he pito whakarara, he parenga pito paipa, he pouaka rakau, me ētahi atu.
Tautoko:Te tiwhikete IBR, te tirotiro TPI, te MTC, te tapahi, te tukatuka, me te whakaritenga;
MOQ:1 mita;
Ngā Ture Utu:T/T, L/C rānei;
Utu:Whakapā mai ki a mātou mō ngā utu hou mō ngā paipa maitai T91.
