ʻO ke kūlana paipu ERWpenei:
API 5L, ASTM A53 B, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672

Hoʻohana ʻia ka API 5L Standard i ke kinoea a me ka wai i loko o ka ʻoihana aila a me ke kinoea no ka ʻike ʻana, i hoʻohana ʻia no ka paipu kila maʻemaʻe a me ka paipu kila welded, me ke awa maʻamau a me ke awa, ke awa kumu paipu a me ke kahawai pololei (TFL) a me ke awa no kahi kikoʻī. hoʻoheheʻe paipu pili.

Hoʻolālā ʻia ka paipu ASTM A53 no nā noi mechanical a me ke kaomi a ʻae ʻia no ka hoʻohana maʻamau i ka mahu, ka wai, ke kinoea a me nā laina ea.

ʻO nā kūlana ASTM A178 no nā paipu uila-welded-welded me ka liʻiliʻi-pā-mānoanoa i hana ʻia me ke kila kalapona a me ke kila kalapona-manganese e hoʻohana ʻia i loko o nā paipu paila, nā ʻūhā boiler, nā ʻūhā superheater, a me nā hopena palekana.

Hoʻopili ʻo ASTM A500 i ke kila kalapona i hoʻoheheʻe ʻia i ke anuanu a me ka seamless carbon steel poepoe, square, rectangular, a i ʻole ke ʻano hana kūikawā no ke kūkulu ʻana i nā alahaka a me nā hale, a no nā kumu hana maʻamau.

Uhi ʻo ASTM A691 i ke kalapona a me ka paipu kila kila, ka uila-fusion-welded me ka mea hoʻopiha metala i hoʻohui ʻia, i hana ʻia mai ka pā kaomi-waʻa-maikaʻi o ka nui o nā loiloi a me nā pae ikaika a kūpono no ka lawelawe kiʻekiʻe ma nā wela kiʻekiʻe.

Uhi ʻo ASTM A252 i nā puʻu paipu kila kila i ka paia i hana ʻia ai ka pahu kila ma ke ʻano he lālā lawe ukana mau a i ʻole ma ke ʻano he pūpū e hana ai i nā puʻu paʻa i hoʻolei ʻia.

Uhi ʻo ASTM A672 i ka paipu kila uila-fusion-welded no ka lawelawe puʻe kiʻekiʻe ma nā wela haʻahaʻa.