ʻO nā paipu Duplex steel S31803 kekahi o nā mea i kaulana loa a hoʻohana nui ʻia i ka honua. Kaulana ʻia lākou no ko lākou ikaika kiʻekiʻe, kūpaʻa a me ka pale ʻana i ka corrosion. ʻO ke kila Duplex S31803 he kila kila kila i loaʻa iā 25% chromium a me 7% nickel. Loaʻa iā ia ka ikaika kiʻekiʻe i ka ratio paona a me nā waiwai kūpaʻa maikaʻi maikaʻi loa i hoʻohālikelike ʻia me nā kila stainless austenitic e like me 304L a me 316L. Loaʻa i ka Duplex Steel S31803 Tube ke kūpaʻa pitting maikaʻi loa ma muli o kona haʻahaʻa kalapona haʻahaʻa, e kōkua ana i ka pale ʻana i ka pitting corrosion.

Loaʻa nā paipu ma nā ʻano ʻelua, seamless a welded. Hana ʻia nā paipu seamless me ka ʻole o ke kuʻi ʻana, ʻoiai ʻo nā paipu welded he weld ma ka lōʻihi o ka paipu. Loaʻa i nā ʻano ʻelua nā pōmaikaʻi ma muli o kāu koi noi, akā ua hoʻohana nui ʻia nā paipu seamless ma muli o ko lākou ikaika kiʻekiʻe i ka ratio paona a hiki ke kū i nā wela kiʻekiʻe ma mua o nā paipu welded.