ASTM A335 P5, e mōhiotia ana ko ASME SA335 P5, he paipa rino tui-kore i hangaia mō te mahi pāmahana teitei.
Kei roto i te P5 te 4.00 ~ 6.00% chromium me te 0.45 ~ 0.65% molybdenum, e tuku ana i te kaha me te mahi tino pai i raro i ngā pāmahana me ngā pēhanga teitei. He whānuitia te whakamahinga i roto i ngā taputapu pēnei i ngā kohua, ngā whakamahana nui, me ngā whakawhiti wera.
Ko tōna tohu UNS ko K41545.
Kaihanga me te Āhua
Me hanga ngā paipa maitai ASTM A335 P5 mā te tukanga tuimotu, ā, me kume wera, me kume matao rānei, e ai ki te whakaritenga.
Ko ngā paipa wera-oti he paipa rino tui-kore i hangaia mai i ngā pereki mā te whakamahana me te hurihuri, ko ngā paipa kumea matao he paipa rino tui-kore i hangaia mā te kumea wera-oti i te pāmahana rūma.
Mena kei te hiahia koe ki te ako atu mō ngā tukanga hanga o ēnei momo paipa maitai kore hononga e rua, pāwhiritia"He aha te Paipa Rino Kore-Tuitui?"mō ētahi atu kōrero.
Te Maimoatanga Wera
Me whakamahana anō ngā paipa ASTM A335 P5 kia whakamahanahia, ā, me whakamahana anō mā tete whakamahana katoa, te whakamahana isothermal rānei or te whakataurite me te whakamāmā.
Kei te ripanga i raro nei ngā whakaritenga motuhake:
| Tau | Momo maimoatanga wera | Te Whakamahana, te Pāmahana rānei i raro i te Hiranga |
| ASTM A335 P5 | te whakamahana katoa, te whakamahana isothermal rānei | — |
| whakataurite me te whakangāwari | 1250 ℉ [675 ℃] meneti |
Me whai i muri mai ngā mahi e whakamahana ana i ngā paipa rino ki runga ake i tō rātou pāmahana tino nui, pērā i te whakarewa, te whakapiri, me te piko wera, me whakamahi he maimoatanga wera e tika ana.
Me tutuki ngā tikanga whakamātautau mō te hanganga matū me ngā āhuatanga hangarau o ngā paipa maitai P5 ki ngā whakaritenga e tika ana o ASTM A999.
| Tau | Te hanganga, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 mōrahi | 0.30 ~ 0.60 | 0.025 mōrahi | 0.025 mōrahi | 0.50 mōrahi | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Ngā Āhuatanga Kume
| Tau | Kaha Kume | Te Kaha o te Hua | Te whakaroa i roto i te 2 inihi, 50 mm rānei |
| P5 | 60 ksi [415 MPa] min | 30 ksi [205 MPa] min | 30% meneti |
Ngā Āhuatanga Pakari
Kāore te paerewa ASTM A335 e tohu ana i ngā whakaritenga pakeke mō ngā paipa maitai P5.
Whakamātautau Whakapapatahi
Me whakahaere te whakamātautau papatahi, me te tango tauira hoki i runga anō i ngā whakaritenga e tika ana o te ASTM A999, ā, ka taea te whakamahi i ngā pito paipa kua tapahia hei tauira.
Whakamātautau Piko
Mō ngā paipa he nui ake te whānui o te NPS 25, ā, he 7.0, iti iho rānei te ōwehenga o te whānui ki te matotoru o te pakitara, me whakamātautau piko, kaua ki te whakamātautau papatahi.
Me piko ngā tauira whakamātautau piko i te pāmahana rūma tae noa ki te 180°, me te kore e pakaru te taha waho o te wāhanga piko. Ko te whānui o roto o te piko me 25 mm.
Āhua
Me maeneene, kia papatahi te mata o te paipa rino, karekau he papaki, he tuitui, he tapa, he haehae, he maramara rānei.
Mena ka neke atu te hohonutanga o tētahi hapa i te 12.5% o te matotoru o te pakitara ingoa, ki te iti iho rānei te matotoru o te pakitara e toe ana i te matotoru iti rawa kua tohua, ka kiia te wāhi he hapa.
Ina kei roto tonu te matotoru o te pakitara e toe ana i ngā rohe kua tohua, ka taea te tango i te hapa mā te huri.
Mena kei raro iho te matotoru o te pakitara e toe ana i te taumata iti rawa e hiahiatia ana, me whakatika te hapa mā te whakarewa, mā te tapahi rānei.
Te Manawanui Diameter
Mō ngā paipa i tonoa e te NPS [DN] me te diameter o waho rānei, kaua ngā rerekētanga o te diameter o waho e neke ake i ngā whakaritenga e whakaaturia ana i te ripanga i raro nei:
| Kaitohu NPS [DN] | Ngā Huringa Whakaaetia | |
| i roto i | mm | |
| 1/8 ki te 1 1/2 [6 ki te 40], inihi. | ±1/64 [0.015] | ±0.40 |
| Neke atu i te 1 1/2 ki te 4 [40 ki te 100], inihi. | ±1/32 [0.031] | ±0.79 |
| Neke atu i te 4 ki te 8 [100 ki te 200], inihi. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Neke atu i te 8 ki te 12 [200 ki te 300], inihi. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| Neke atu i te 12 [300] | ±1% o te diameter waho kua tohua | |
Mō ngā paipa kua whakaritea kia rite ki te diameter o roto, kaua te diameter o roto e neke atu i te 1% mai i te diameter o roto kua tohua.
Ngā Ātete Matotoru o te Pakitara
Haunga te herenga ā-pūmau o te matotoru o te pakitara mō ngā paipa i whakatakotoria e te herenga taumaha i roto i te ASTM A999, me noho te matotoru o te pakitara mō ngā paipa i tētahi wāhi ki roto i ngā manawanui kua tohua i te ripanga i raro nei:
| Kaitohu NPS [DN] | Manawanui, % āhua kua tohua |
| 1/8 ki te 2 1/2 [6 ki te 65] tae atu ki ngā ōwehenga t/D katoa | -12.5 - +20.0 |
| Neke atu i te 2 1/2 [65], t/D ≤ 5% | -12.5 - +22.5 |
| Neke atu i te 2 1/2, t/D ＞ 5% | -12.5 - +15.0 |
| t = Te Matotoru o te Pakitara kua Tauwhāitihia; D = Te Diameter o Waho kua Tauwhāitihia. | |
Ko ngā paipa maitai ASTM A335 P5 e whakamahia nuitia ana i roto i ngā pūnaha paipa e mahi ana i raro i ngā āhuatanga pāmahana teitei me te pēhanga teitei.
Nā te mea he tino ātete ki te pāmahana teitei me ōna āhuatanga hangarau, he whānuitia te whakamahinga i roto i ngā ahumahi matū hinu, whakaputa hiko, me te whakangao para.
Ko ngā tono motuhake ko:
- Ngā paipa kōhua
- Ngā whakawhiti wera
- Ngā raina tukanga matū
- Ngā paipa tipu hiko
- Ngā oko pēhanga kōhua
| ASME | ASTM | EN | JIS |
| ASME SA335 P5 | ASTM A213 T5 | EN 10216-2 X11CrMo5+I | JIS G 3458 STPA25 |
Rauemi:Ngā paipa me ngā hononga maitai kore hononga ASTM A335 P5;
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 T11.
