ʻO ASTM A335 P92 (ASME SA335 P92) he paipu kila ferritic seamless i manaʻo ʻia no ka lawelawe wela kiʻekiʻe.ʻO ka inoa UNS ʻo K92460.
ʻO P92 kahi kila kila martensitic kiʻekiʻe-chromium kūpaʻa wela i loaʻa he 8.50–9.50% chromium a ua hoʻohui ʻia me Mo, W, V, a me Nb, ka mea e hāʻawi ana i ka ikaika kolo wela kiʻekiʻe maikaʻi loa, ke kūpaʻa ʻana i ka oxidation, a me ke kūpaʻa ʻana i ka luhi thermal.
Hoʻohana nui ʻia ia i nā laina mahu nui, nā laina mahu hoʻomehana hou, nā ʻōmole superheater a me nā ʻōmole reheater o nā paila mana supercritical a me ultra-supercritical, a me nā paipu hana wela kiʻekiʻe, kaomi kiʻekiʻe a me nā ʻāpana paʻa kaomi koʻikoʻi i nā hale hana petrochemical a me ka hoʻomaʻemaʻe ʻana.
He mea kūʻai aku a kūʻai nui ʻo Botop Steel i nā paipu kila kila kila a ʻoihana hoʻi ma Kina, hiki ke hoʻolako koke i kāu mau papahana me nā ʻano paipu kila kila like ʻole, me nāP5 (K41545), P9 (K90941), P11 (K11597), P12 (K11562), P22 (K21590), a meP91 (K90901).
He kūlana hilinaʻi ko kā mākou huahana, he kumukūʻai hoʻokūkū, a kākoʻo i ka nānā ʻana mai nā ʻaoʻao ʻekolu.
| Ka Hoʻohui Kemika, % | |||
| C | 0.07 ~ 0.13 | N | 0.03 ~ 0.07 |
| Mn | 0.30 ~ 0.60 | Ni | 0.40 kiʻekiʻe loa |
| P | 0.020 kiʻekiʻe loa | Al | 0.02 kiʻekiʻe |
| S | 0.010 kiʻekiʻe loa | Nb | 0.04 ~ 0.09 |
| Si | 0.50 ka palena kiʻekiʻe | W | 1.5 ~ 2.0 |
| Cr | 8.50 ~ 9.50 | B | 0.001 ~ 0.006 |
| Mo | 0.30 ~ 0.60 | Ti | 0.01 ka palena kiʻekiʻe |
| V | 0.15 ~ 0.25 | Zr | 0.01 ka palena kiʻekiʻe |
ʻO nā huaʻōlelo Nb (Niobium) a me Cb (Columbium) he mau inoa ʻē aʻe no ka mea like.
Nā Waiwai Uʻi
| Papa | Nā Waiwai Uʻi | ||
| Ikaika Hoʻopaʻa | Ikaika Hāʻawi | Hoʻolōʻihi | |
| ASTM A335 P92 | 90 ksi [620 MPa] min | 64 ksi [440 MPa] min | 20% min (Longitudinal) |
Hoʻākāka ʻo ASTM A335 i nā waiwai elongation liʻiliʻi loa i helu ʻia no P92 no kēlā me kēia emi ʻana o ka mānoanoa o ka paia he 1/32 ʻīniha [0.8 mm].
| Mānoanoa o ka paia | P92 Elongation i 2 ʻīniha a i ʻole 50 mm | |
| in | mm | ʻO ka lōʻihi |
| 0.312 | 8 | 20% minuke |
| 0.281 | 7.2 | 19% minuke |
| 0.250 | 6.4 | 18% minuke |
| 0.219 | 5.6 | 17% minuke |
| 0.188 | 4.8 | 16% minuke |
| 0.156 | 4 | 15% minuke |
| 0.125 | 3.2 | 14% minuke |
| 0.094 | 2.4 | 13% minuke |
| 0.062 | 1.6 | 12% minuke |
Ma kahi e waiho ai ka mānoanoa o ka paia ma waena o nā waiwai ʻelua ma luna, ua hoʻoholo ʻia ka waiwai elongation liʻiliʻi loa e ka haʻilula penei:
E = 32t + 10.00 [E = 1.25t + 10.00]
Ma hea:
E = elongation ma 2 ʻīniha a i ʻole 50 mm, %, a me
t = ka mānoanoa maoli o nā hāpana, ʻīniha [mm].
Nā Koina Paʻakikī
| Papa | Nā Waiwai Uʻi | ||
| ʻO Brinell | ʻO Vickers | Rockwell | |
| ASTM A335 P92 | 250 HBW kiʻekiʻe | 265 HV kiʻekiʻe | 25 HRC kiʻekiʻe |
No nā paipu me ka mānoanoa o ka paia he 0.200 ʻīniha [5.1 mm] a ʻoi aku paha, e hoʻohana ʻia ka hoʻāʻo paʻakikī Brinell a i ʻole Rockwell.
Pono e hana ʻia ka hoʻāʻo paʻakikī Vickers e like me ke ʻano hoʻāʻo E92.
Hoʻāʻo Hoʻopālahalaha
Pono e hana ʻia nā hoʻāʻo ma nā hāpana i lawe ʻia mai kekahi ʻaoʻao o ka paipu e like me nā koi o ka Paukū 20 o ASTM A999.
Hoʻāʻo Kūlou
No ka paipu nona ke anawaena ma mua o NPS 25 a ʻo ka lakio o ke anawaena i ka mānoanoa o ka paia he 7.0 a emi mai paha, e hoʻokau ʻia i ka hoʻāʻo kūlou ma kahi o ka hoʻāʻo pālahalaha.
Pono e pelu ʻia nā hāpana hoʻāʻo kūlou ma ka mahana o ka lumi a hiki i 180° me ka ʻole o ka māwae ma waho o ka ʻāpana i kūlou ʻia.
Mea Hana a me ke Kūlana
E hana ʻia nā paipu kila ASTM A335 P92 e kakaʻina hana maʻalahia e hoʻopau wela ʻia a i ʻole e huki anu ʻia, e like me ka mea i kuhikuhi ʻia.
He paipu wili ʻole kahi paipu me ka ʻole o nā wili. I nā wahi wela kiʻekiʻe a me ke kaomi kiʻekiʻe, hiki i nā paipu wili ʻole ke kū i nā kaomi a me nā mahana kūloko kiʻekiʻe, hāʻawi i ka pono kūkulu maikaʻi a me nā waiwai mechanical, a pale i nā hemahema hiki ke loaʻa ma nā wili wili.
Ka Lapaʻau Wela
E hoʻomehana hou ʻia ka paipu P92 no ka mālama ʻana i ka wela a mālama ʻia e like me nā koi.
| Papa | ASTM A335 P92 |
| ʻAno Hoʻomehana | hoʻomaʻamaʻa a hoʻonāukiuki |
| Ke hoʻomaʻamaʻa ʻana i ka mahana | 1900 ~ 1975 ℉ [1040 ~ 1080 ℃] |
| Mahana Hoʻomehana | 1350 ~ 1470 ℉ [730 ~ 800 ℃] |
E paʻakikī kekahi o nā kila ferritic i uhi ʻia e kēia kikoʻī inā e hoʻomaʻalili koke ʻia mai luna o ko lākou mahana koʻikoʻi. E paʻakikī kekahi i ka ea, ʻo ia hoʻi, e lilo i paʻakikī i kahi kekelē i makemake ʻole ʻia ke hoʻomaʻalili ʻia i ka ea mai nā mahana kiʻekiʻe.
No laila, ʻo nā hana e pili ana i ka hoʻomehana ʻana i kēlā mau kila ma luna o ko lākou mau mahana koʻikoʻi, e like me ka kuʻihao, ka flanging, a me ke kulou wela, pono e ukali ʻia e ka mālama wela kūpono.
| ASME | ASTM | EN | GB |
| ASME SA335 P92 | ASTM A213 T92 | EN 10216-2 X10CrWMoVNb9-2 | GB/T 5310 10Cr9MoW2VNbBN |
Mea Hana:ʻO nā paipu kila humuhumu ASTM A335 P92 a me nā mea hoʻohui;
Nui:1/8" a 24", a i ʻole i hoʻopilikino ʻia e like me kāu mau koi;
Lōʻihi:Ka lōʻihi kaulele a ʻokiʻoki paha e kauoha;
Pūʻolo:Uhi ʻeleʻele, nā wēlau beveled, nā pale welau paipu, nā pahu lāʻau, a pēlā aku.
Kākoʻo:Palapala hōʻoia IBR, nānā TPI, MTC, ʻoki ʻana, hana ʻana, a me ka hoʻopilikino ʻana;
MOQ:1 mika;
Nā Kūlana Uku:T/T a i ʻole L/C;
Kumukūʻai:E leka uila mai iā mākou no nā kumukūʻai paipu kila P92 hou loa.
