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