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A335 P91 paipu kila
A335 P91 paipu kila
A335 P91 paipu kila
A335 P91 paipu kila

ASTM A335 P91 Alloy Steel Paipu

He kūpono nā paipu Alloy Steel P91 no nā noi. ʻO ka mea maʻamau, pili ia i ka ʻoihana mana a me nā mea kanu petrochemical.
Hoʻolauna huahana

Astm A335 kikoʻī maʻamau no ka seamless ferritic alloy-steel paipu no ka lawelawe wela kiʻekiʻe

Hāʻawi ʻia ka maʻamau ASTM A335 ma lalo o ka inoa paʻa A 335/A 335M; ʻo ka helu ma hope koke iho o ka hoʻopaʻa inoa ʻana e hōʻike i ka makahiki o ka hoʻopaʻa ʻia ʻana a i ʻole, inā i hoʻoponopono hou ʻia, ka makahiki o ka hoʻoponopono hope. Hōʻike ka helu i loko o nā pale i ka makahiki o ka ʻae hou ʻana. Hōʻike ka epsilon superscript (ュ) i kahi hoʻololi hoʻoponopono mai ka hoʻoponopono hope a ʻae ʻia paha.

ʻĀpana

1.1Keia kikoo uhi nominal (awelika) paia seamless alloy-steel paipu i manaoia no kiʻekiʻe-mehana lawelawe (Mote 1). ʻO ka paipu i kauoha ʻia e like me kēia kikoʻī e kūpono ia no ke kuʻo ʻana, flanging (vanstoning), a me nā hana hana like, a no ka hui ʻana. E hilinaʻi ke koho i ka hoʻolālā, nā kūlana lawelawe, nā waiwai mechanical, a me nā ʻano wela kiʻekiʻe.

NĀ MEA 1 Α Hoʻopaʻa inoa ʻo Appendix X1 i ka nui a me ka mānoanoa o ka paia o ka paipu i hiki ke loaʻa ma lalo o ka hana kalepa o kēia manawa.

1.2 Ua uhi ʻia kekahi mau māka o nā kila ferritic (Note 2).

Nānā 2

ʻO nā kila Ferritic i loko o kēia kikoʻī ua wehewehe ʻia he mau kila haʻahaʻa a waena waena i loaʻa a hiki i ka 10% chromium.
1.3 Hāʻawi ʻia nā koi hoʻohui (S1 a i S7) o ke ʻano koho. Ke koi nei kēia mau koi hoʻohui i nā hoʻokolohua hou aʻe e hana ʻia, a inā makemake ʻia, e hōʻike ʻia ma ke ʻano me ka helu o ia mau hoʻokolohua e pono ai.
1.4 ʻO nā koina i ʻōlelo ʻia ma nā ʻāpana ʻīniha-paona a i ʻole ʻāpana SI e manaʻo ʻia ma ke ʻano maʻamau. I loko o ka kikokikona, hōʻike ʻia nā ʻāpana SI i nā bracket. ʻAʻole like nā waiwai i ʻōlelo ʻia ma kēlā me kēia ʻōnaehana; no laila, pono e hoʻohana kūʻokoʻa kēlā me kēia ʻōnaehana i kekahi. ʻO ka hoʻohui ʻana i nā waiwai mai nā ʻōnaehana ʻelua hiki ke hopena i ka like ʻole me ka kikoʻī. E hoʻohana ʻia nā ʻāpana ʻīniha-paona ke ʻole ke kuhikuhi ʻia ka "M" o kēia kikoʻī ma ke kauoha.

Nānā 3ΑUa hoʻololi ʻia ka NPS mea hōʻailona ʻole (nominal pipe size) i kēia maʻamau no nā huaʻōlelo kuʻuna e like me "nominal diameter," "size," a me "nominal size."

Mea & Hana

Hiki ke wela a huki ʻia paha ka paipu me ka hoʻoponopono wela i hōʻike ʻia ma lalo nei.


ʻO ka hoʻāʻo ʻana a i ʻole ka hoʻāʻo ʻana i ka hoʻāʻo ʻana a me ka hoʻāʻo ʻana, ka hoʻāʻo paʻakikī, a i ʻole ka Bend Test Nā hoʻāʻo ʻenehana

No nā mea wela i mālama ʻia i loko o ka umu ahi ʻano pū, e hoʻāʻo ʻia ma ka 5% o ka paipu mai kēlā me kēia ʻāpana i mālama ʻia. No nā ʻāpana liʻiliʻi, e hoʻāʻo ʻia ma kahi o hoʻokahi paipu.
No ka wela wela i mālama ʻia e ke kaʻina hana mau, e hana ʻia nā hoʻāʻo ma ka helu kūpono o ka paipu e lilo i 5% o ka hailona, ​​akā ʻaʻole i emi iho ma mua o 2 paipu.

Nā memo no ka ho'āʻo paʻakikī:
ʻAʻole ʻoi aku ka paʻakikī o P91 ma mua o 250 HB / 265 HV [25HRC].

Nā memo no ka ho'āʻo ʻo Bend:
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.
Hiki ke hā'awi 'ia ka paipu 'ē a'e i like ke anawaena a 'oi aku paha ma mua o NPS 10 ma kahi o ka ho'ā'o palahalaha ma muli o ka 'ae o ka mea kū'ai.
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 piʻo.

Hoʻāʻo Hydrostatic

ʻO ke anawaena o loko o ka piko he 1 ʻīniha [25 mm].
E ho'āʻo ʻia kēlā me kēia lōʻihi o ka paipu, ma ke koho o ka hana ʻana i ka hoʻāʻo uila nondestructive hiki ke hoʻohana ʻia.

ʻikepili ʻenehana
Huina Kemika:
Papa C ʻO Mn P S ʻO Si Mo
P1 0.10-0.20 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65
P2 0.10-0.20 0.30-0.61 0.025 0.025 0.10-0.30 0.44-0.65
P5 0.15 ka nui 0.30-0.60 0.025 0.025 0.50 ka nui 0.45-0.65
P5b 0.15 ka nui 0.30-0.60 0.025 0.025 1.00-2.00 0.45-0.65
P5c 0.12 ka nui 0.30-0.60 0.025 0.025 0.50 ka nui 0.45-0.65
P9 0.15 ka nui 0.30-0.60 0.025 0.025 0.25-1.00 0.90-1.10
P11 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 0.44-0.65
P12 0.05-0.15 0.30-0.61 0.025 0.025 0.50 ka nui 0.44-0.65
P15 0.05-0.15 0.30-0.60 0.025 0.025 1.15-1.65 0.44-0.65
P21 0.05-0.15 0.30-0.60 0.025 0.025 0.50 ka nui 0.80-1.06
P22 0.05-0.15 0.30-0.60 0.025 0.025 0.50 ka nui 0.87-1.13
P23 0.04-0.10 0.10-0.60 0.030 ka nui 0.010 ka nui 0.50 ka nui 0.05-1.30

Na Waiwai Mechanical
Nā waiwai mīkini P1,P2 P12 P23 P91 P92,P11 P122
Ka ikaika tensile 380 415 510 585 620 620
Hua ikaika 205 220 400 415 440 400
Nā Koina Lapaʻau Wela
Papa ʻAno Hana Wela
P5, P9, P11, a me P22
Hoʻomaʻamaʻa maʻamau ʻo F [C] Subcritical Annealing or Tempering
Kaulana Mahana F [C]
A335 P5 (b,c) Hoʻopiha piha a i ʻole Isothermal Anneal
Normalize a me ka Mahana ***** 1250 [675]
Hoʻohui Kūʻē (P5c wale nō) ***** 1325 – 1375 [715 - 745]
A335 P9 Hoʻopiha piha a i ʻole Isothermal Anneal
Normalize a me ka Mahana ***** 1250 [675]
A335 P11 Hoʻopiha piha a i ʻole Isothermal Anneal
Normalize a me ka Mahana ***** 1200 [650]
A335 P22 Hoʻopiha piha a i ʻole Isothermal Anneal
Normalize a me ka Mahana ***** 1250 [675]
A335 P91 Normalize a me ka Mahana 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Hoʻopiʻi me ka huhū 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Hoʻomaʻamaʻa Wela A / N+T N+T / Q+T N+T
Ninau
* inoa
* leka uila
Kelepona
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