ASTM A53ʻO ke kūlana maʻamau ʻo ia ka American Society for Testing and Materials. Uhi ke kūlana i nā ʻano nui a me nā mānoanoa o nā paipu a pili i nā ʻōnaehana paipu i hoʻohana ʻia no ka lawe ʻana i nā kinoea, nā wai a me nā wai ʻē aʻe. Hoʻohana pinepine ʻia nā paipu maʻamau ASTM A53 ma nā wahi ʻoihana a me nā wahi mīkini, a me ka ʻoihana kūkulu hale no ka hoʻolako wai, ka hoʻomehana a me nā ʻōnaehana ea.

Wahi aASTM A53maʻamau, hiki ke hoʻokaʻawale ʻia nā paipu i ʻelua ʻano: ʻAno F a me ʻAno E. ʻO ke ʻano F he paipu seamless a ʻo ke ʻano E he paipu wili uila. Pono nā ʻano paipu ʻelua i ka mālama wela e hōʻoia i ka hoʻokō ʻana o ko lākou mau waiwai mechanical a me ke ʻano kemika i nā koi maʻamau. Eia kekahi, pono e kūlike nā koi o ka ʻili o ka paipu me nā ʻōlelo o ke kūlana ASTM A530/A530M e hōʻoia i kona ʻano maikaʻi.

ʻO nā koi hoʻohuihui kemika o nā paipu maʻamau ASTM A53 penei: ʻaʻole ʻoi aku ka nui o ke kalapona ma mua o 0.30%, ʻaʻole ʻoi aku ka nui o ka manganese ma mua o 1.20%, ʻaʻole ʻoi aku ka nui o ka phosphorus ma mua o 0.05%, ʻaʻole ʻoi aku ka nui o ka sulfur ma mua o 0.045%, ʻaʻole ʻoi aku ka nui o ka chromium ma mua o 0.40%, a ʻaʻole ʻoi aku ka nui o ka nickel ma mua o 0.40%, ʻaʻole ʻoi aku ka nui o ke keleawe ma mua o 0.40%. Hōʻoia kēia mau kapu hoʻohuihui kemika i ka ikaika, ka paʻakikī a me ke kūpaʻa i ka pala o ka pipeline.

Ma ke ʻano o nā waiwai mechanical, koi ke kūlana ASTM A53 i ka ikaika tensile a me ka ikaika yield o nā paipu ʻaʻole emi ma mua o 330MPa a me 205MPa. Eia kekahi, aia kekahi mau koi i ka elongation rate o ka paipu e hōʻoia i ʻole e haki a deform paha i ka wā e hoʻohana ai.

Ma waho aʻe o ka hoʻohuihui kemika a me nā waiwai mechanical, hāʻawi pū ka maʻamau ASTM A53 i nā lula kikoʻī e pili ana i ka nui a me ke ʻano o nā paipu. Loaʻa nā nui o nā paipu mai 1/8 ʻīniha a 26 ʻīniha, me nā koho mānoanoa o ka paia. Pono ke ʻano o ka pipeline i kahi ʻili laumania me ka ʻole o ka oxidation maopopo, nā māwae a me nā kīnā e hōʻoia ʻaʻole ia e liki a hōʻino ʻia i ka wā o ke kau ʻana a me ka hoʻohana ʻana.

Ma keʻano laulā, he kūlana koʻikoʻi ke kūlana ASTM A53 no nā paipu kila kalapona. Uhi ia i nā koi no ka haku mele kemika, nā waiwai mechanical, nā ana a me ke ʻano o nā paipu. Hiki i nā paipu i hana ʻia e like me kēia kūlana ke hōʻoia i ka maikaʻi paʻa a me ka hana hilinaʻi, a kūpono hoʻi no nā ʻōnaehana paipu ma nā ʻano ʻoihana like ʻole a me ke kūkulu ʻana. He mea nui ka hoʻokumu ʻana a me ka hoʻokō ʻana i nā kūlana ASTM A53 no ka hōʻoia ʻana i ka hana palekana o nā paipu a me ka hoʻolaha ʻana i ka maikaʻi o ke kūkulu ʻana i ka papahana.