ASTM A335 P5, i kapa ʻia ʻo ASME SA335 P5, he paipu kila liʻiliʻi liʻiliʻi i hoʻolālā ʻia no ka lawelawe wela kiʻekiʻe.
Aia ka P5 i ka 4.00 ~ 6.00 % chromium a me 0.45 ~ 0.65% molybdenum, e hāʻawi ana i ka ikaika maikaʻi loa a me ka hana ma lalo o nā mahana kiʻekiʻe a me nā pilikia. Hoʻohana nui ia i nā lako e like me nā boilers, superheaters, a me nā mea hoʻololi wela.
ʻO K41545 kona inoa UNS.
Mea Hana a me ke Kūlana
ʻO nā paipu kila ASTM A335 P5 e hana ʻia e ke kaʻina hana ʻole a hoʻopau wela a huki ʻia paha, e like me ka mea i kuhikuhi ʻia.
ʻO nā paipu i hoʻopau ʻia i ka wela he mau paipu kila maʻemaʻe i hana ʻia mai nā billet ma o nā kaʻina hana hoʻomehana a me ka ʻōwili ʻana, ʻoiai ʻo nā paipu huki anuanu he mau paipu kila maʻemaʻe i hana ʻia ma ke huki ʻana i nā paipu wela i ka lumi wela.
Inā makemake ʻoe e aʻo hou aʻe e pili ana i nā kaʻina hana o kēia mau ʻano paipu kila ʻole, hiki iā ʻoe ke kaomi“He aha ka paipu kila Seamless?”no nā kikoʻī hou aku.
Hoʻomaʻamaʻa Wela
ʻO nā paipu ASTM A335 P5 e hoʻomaʻamaʻa hou ʻia no ka mālama ʻana i ka wela a mālama ʻia e ka welapiha a isothermal annealing or hana maʻamau a me ka hoʻoulu ʻana.
Hōʻike ʻia nā koi kikoʻī ma ka papa ma lalo:
| Papa | ʻAno mālama wela | Subcritical Annealing a i ʻole Mahana |
| ASTM A335 P5 | piha a isothermal anneal | — |
| maʻamau a huhū | 1250 ℉ [675 ℃] min |
ʻO nā hana e pili ana i ka hoʻomehana ʻana i nā paipu kila ma luna o ko lākou wela koʻikoʻi, e like me ka welding, flanging, a me ka piko wela, pono e ukali ʻia e ka mālama wela kūpono.
ʻO nā ʻano hoʻāʻo no ka hoʻohui kemika a me nā waiwai mechanical o nā paipu kila P5 e hoʻokō me nā ʻōlelo kūpono o ASTM A999.
| Papa | Huina, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 ka nui | 0.30 ~ 0.60 | 0.025 ka nui | 0.025 ka nui | 0.50 ka nui | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Na Waiwai Tensile
| Papa | Ikaika U'i | Ka ikaika hua | ʻO ka lōʻihi i 2 in. a i ʻole 50 mm |
| P5 | 60 ksi [415 MPa] min | 30 ksi [205 MPa] min | 30 % min |
Na waiwai paakiki
ʻAʻole kuhikuhi ka maʻamau ASTM A335 i nā koi paʻakikī no nā paipu kila P5.
Ho'āʻo palahalaha
E mālama ʻia ka hoʻāʻo ʻana a hoʻohālikelike ʻia e like me nā koi kūpono o ASTM A999, a hiki ke hoʻohana ʻia nā hopena paipu i ʻoki ʻia e like me nā specimens.
Hoʻo Piʻo
No ka paipu nona ka anawaena i oi aku i ka NPS 25 a o kona anawaena me ka manoanoa o ka paia he 7.0 a emi mai paha e hoao ia i ka hoao piko ma kahi o ka hoao palahalaha.
E hoʻopiʻi ʻia nā mea hoʻāʻo piʻo ma ka lumi wela a hiki i 180° me ka ʻole o ka haki ʻana ma waho o ka ʻāpana i piʻo. ʻO ke anawaena o loko o ka piko he 1 iniha [25 mm].
Ka nana aku
O ka ili o ka paipu kila, e maalahi a me ka pono, me ka nele i ka pehu, ka humuhumu, ka uha, ka waimaka, a me ka maa.
Inā ʻoi aku ka hohonu o kekahi hemahema ma mua o 12.5% o ka mānoanoa o ka paia i koho ʻia a i ʻole ka mānoanoa o ka pā i koe ma lalo o ka mānoanoa haʻahaʻa i ʻōlelo ʻia, e manaʻo ʻia ka wahi he hemahema.
Ke koe ka mānoanoa o ka pā i loko o nā palena i ʻōlelo ʻia, hiki ke wehe ʻia ke kīnā ma ka wili ʻana.
Inā ʻoi aku ka mānoanoa o ka pā i koe ma lalo o ka palena liʻiliʻi, e hoʻoponopono ʻia ka hemahema ma ka wili a wehe ʻia paha ma ke ʻoki ʻana.
Ka hoʻomanawanui anawaena
No nā paipu i kauoha ʻia e ka NPS [DN] a i ʻole ke anawaena o waho, ʻaʻole e ʻoi aku ke ʻano o ke anawaena o waho ma mua o nā koi i hōʻike ʻia ma ka papa ma lalo nei.
| NPS [DN] Mea koho | ʻAe ʻia nā ʻano like ʻole | |
| i loko. | mm | |
| 1/8 a 1 1/2 [6 a 40], iniha. | ±1/64 [0.015] | ±0.40 |
| Ma luna o 1 1/2 a 4 [40 a 100], ʻīniha. | ±1/32 [0.031] | ±0.79 |
| Ma luna o 4 a 8 [100 a 200], ʻīniha. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Ma luna o 8 a 12 [200 a 300], ʻīniha. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| ʻOi aku ma mua o 12 [300] | ±1 % o ke anawaena waho i hoakakaia | |
No ka paipu i kauoha ʻia i ke anawaena o loko, ʻaʻole e ʻokoʻa ke anawaena o loko ma mua o 1% mai ke anawaena o loko i ʻōlelo ʻia.
Pale mānoanoa o ka pā
Ma waho aʻe o ka palena palena ʻole o ka mānoanoa o ka pā no ka paipu i kau ʻia e ka palena o ke kaumaha ma ASTM A999, ʻo ka mānoanoa o ka pā no ka paipu i kēlā me kēia wahi i loko o nā ʻae i kuhikuhi ʻia ma ka papa ma lalo.
| NPS [DN] Mea koho | Hoʻomanawanui, % puka i ʻōlelo ʻia |
| 1/8 a 2 1/2 [6 a 65] komo. nā lākiō t/D a pau | -12.5 - +20.0 |
| Ma luna o 2 1/2 [65], t/D ≤ 5% | -12.5 - +22.5 |
| Ma luna o 2 1/2, t/D ＞ 5% | -12.5 - +15.0 |
| t = Mānoanoa Pā i ʻōlelo ʻia; D = ʻO ke anawaena waho. | |
Hoʻohana mua ʻia nā paipu kila ASTM A335 P5 i nā ʻōnaehana paipu e hana ana ma lalo o nā kūlana kiʻekiʻe a me nā kūlana kiʻekiʻe.
Ma muli o ko lākou kūpaʻa kiʻekiʻe kiʻekiʻe a me nā waiwai mechanical, hoʻohana nui ʻia lākou i ka ʻoihana petrochemical, mana hana, a me nā ʻoihana refinery.
Loaʻa nā noi kikoʻī:
- Paipu paila
- Nā mea hoʻololi wela
- Nā laina kaʻina hana petrochemical
- Paipu uila
- ʻO nā ipu kaomi paila
| ASME | ASTM | EN | JIS |
| ASME SA335 P5 | ASTM A213 T5 | EN 10216-2 X11CrMo5+I | JIS G 3458 STPA25 |
Material:ʻO ASTM A335 P5 paipu kila ʻole a me nā mea pono;
Nui:1/8 "a 24", a i ʻole e like me kāu mau koi;
Ka lōʻihi:Ka lōʻihi a ʻokiʻoki paha i ke kauoha;
Packaging:ʻO ka uhi ʻeleʻele, nā wēlau beveled, nā pale pale hopena, nā pahu lāʻau, etc.
Kākoʻo:IBR palapala hōʻoia, TPI inspection, MTC, oki, hana, a me ka hana maʻamau;
MOQ:1 m;
Kūkākūkā uku:T / T a iʻole L / C;
Kumukuai:E kelepona mai iā mākou no nā kumukūʻai paipu kila T11 hou loa.
