Kuʻekuʻe Pipe Steel

ʻO ka mea o ke kuʻekuʻe wāwae he kila kalapona, ke kila kila, ke kila kila a me nā mea ʻē aʻe.He maʻalahi nā kuʻekuʻe kuʻekuʻe kila carbon a hoʻohana nui ʻia.Hoʻohanaʻia ka kuʻekuʻe kila kila ma kahi kūlana kūikawā.

Kila kohu ʻole
ʻO ka ʻokoʻa nui ma waena o nā kuʻekuʻe kuʻekuʻe kila kila a me nā kuʻekuʻe kila carbon ka ʻokoʻa o nā mea.ʻO ka hui kemika i loko o ka kuʻekuʻe e mālama i ka ʻili o ka kuʻekuʻe mai ka lepo no ka manawa lōʻihi a ʻaʻole maʻalahi ke ʻino.

ʻO ke kila kila he kila me ke kila kila a me ke kū'ēʻana i ka corrosion e like me kona mau hiʻohiʻona nui, me ka chromium maʻiʻo o ka liʻiliʻi he 10.5% a me ka nui o ka carbon content o 1.2%.

ʻO ka austenitic stainless steel matrix ʻo ia ka austenitic structure (γ phase) me kahi ʻano cube i hoʻohālikelike ʻia i ke alo, ʻaʻole ia he magnetic a hoʻoikaika nui ʻia e ka hana anu (a hiki ke alakaʻi i kekahi mau waiwai magnetic).

Austenitic-ferritic (duplex) kila kuhiliʻole
ʻO ka matrix he ʻano hana ʻelua o ka austenite a me ka ferrite (ʻoi aku ka nui o ka maʻiʻo o ka pae liʻiliʻi ma mua o 15%), a he kila kuhili ʻole ia a hiki ke hoʻoikaika ʻia e ka hana anu.

ʻO ka ferritic stainless steel matrix ka mea nui he ferrite structure (α phase) me ke kino-centered cubic crystal structure, he magnetic a maʻamau ʻaʻole hiki ke hoʻopaʻakikī ʻia e ka mālama wela, akā he kila kila hiki ke hoʻoikaika iki ʻia e ke anuanu. hana ana.

ʻO ka matrix o ka martensitic stainless steel he hale martensite, ʻo ia ka magnetic, a hiki ke hoʻoponopono ʻia kona mau waiwai me ka mālama wela.

He kila kuhiliʻole ka paʻakikī o ka ua
He kila kuhili ʻole nona ka matrix austenite a martensite a hiki ke paʻakikī (hoʻoikaika ʻia) e ka paʻakikī o ka ua (ʻike ʻia ʻo ka paʻakikī makahiki).