ASTM A179 (ASME SA179) he paipu kila liʻiliʻi liʻiliʻi no ka hoʻohana ʻana i nā mea hoʻololi wela tubular, condensers, a me nā noi hoʻoili wela like.
ʻO ASTM A179 a me ASME SA179 ʻelua mau maʻamau i like loa.No ka ʻoluʻolu, hoʻohana ʻia ʻo ASTM A179 ma lalo nei.
He kūpono ʻo ASTM A179 no nā paipu kila me ke anawaena o waho o 1/8 ″ – 3 ″ [3.2mm - 76.2mm].
Ke kila Botophe paipu paipu kila maʻemaʻe ʻole mai Kina, e hāʻawi ana iā ʻoe i kahi koho nui o nā paipu kila ʻole kiʻekiʻe ASTM A179/ASME SA179.
Hoʻolaʻa mākou i ka hāʻawi ʻana i kā mākou mea kūʻai aku i nā huahana kiʻekiʻe loa a me nā lawelawe e hōʻoia i ka holo pono ʻana o kāu mau papahana.E koho i ka Botop Steel, a koho i kahi hoa hilinaʻi.
Ua haʻi mua mākou ua hana ʻia ka A179 me ka hoʻohana ʻana i ke kaʻina hana hana maʻamau.He aha nā kaʻina hana kikoʻī e pili ana i ka hana ʻana i ke anu?E ʻoluʻolu e ʻike i ka papa kuhikuhi kaʻina hana.
Ma ke kūlana ASTM,A556hoʻohana pū i ke kaʻina hana hoʻoheheʻe ʻole i huki ʻia i ke anu akā pili pono no nā mea hoʻomehana wai tubular.Hiki i ka poe hoihoi ke ike hou aku.
Ma hope o ke kaha kiʻi anuanu hope loa, e mālama ʻia nā paipu kila i ka wela o 1200°F [650°C] a i ʻole.
| Kūlana | C | Mn | P | S |
| ASTM A179 | 0.06-0.18% | 0.27-0.63% | 0.035% ka nui | 0.035% ka nui |
ʻAʻole ʻae ʻo ASTM A179 i ka hoʻohui ʻana o nā mea ʻē aʻe i ka haku mele.
ʻAʻole pono ka paʻakikī o ka paipu kila ma mua o 72 HRBW (Rockwell hardness).
| Ka ikaika tensile | Hua ikaika | ʻO ka elongation | Ho'āʻo palahalaha | Hoʻāʻo ʻana i ke ahi | Ho'āʻo Flange |
| min | min | i 2 in. a i ole 50 mm, min | |||
| 47 ksi [325 MPa] | 26 ksi [180 MPa] | 35% | E nānā i ka ASTM A450, Pauku 19 | E nānā i ka ASTM A450, Pauku 21 | E nānā i ka ASTM A450, Pauku 22 |
E ho'āʻo ʻia kēlā me kēia paipu i ka hoʻāʻo ʻana i ke kaomi hydraulic a i ʻole, inā ʻōlelo ka mea kūʻai aku pēlā, hiki ke hoʻohana ʻia kahi hoʻāʻo uila non-destructive ma kahi.
Mālama ka paipu kila i ke kaomi no ka liʻiliʻi loa he 5s me ka ʻole o ka hū.
Ua helu ʻia ke kaomi hoʻāʻo me ka hoʻohana ʻana i kēia ʻano:
ʻīniha - Nā ʻāpana paona: P = 32000 t/D
Nā Mokuna SI: P = 220.6t/D
P = kaomi ho'āʻo hydrostatic, psi a i ʻole MPa;
t = mānoanoa o ka pā i ʻōlelo ʻia, in. a i ʻole mm;
D = i kuhikuhi ʻia ke anawaena waho, i loko a i ʻole mm.
ʻO ka mea aʻe kahi pahu A179 maʻamau, a hiki ke hāʻawi ʻia i ka hoʻopili maʻamau e like me nā koi o ka papahana.
Paipu ʻole, uhi ʻeleʻele ( customized);
6" a ma lalo iho I nā pūʻolo me nā maʻa pulupulu ʻelua, nā nui ʻē aʻe i wehe;
ʻO nā hopena ʻelua me nā mea pale hope;
Plain end, welau bevel;
Hoailona.
