316 kila kuhiliʻole a me 304 kuhiliʻole flange a paipu paha

I ka hoʻohana pono ʻana o nā pipelines lako, nui nā huahana i hana ʻia me ke kila kila a i ʻole komomea kila kila. ʻOiai pili lākou a pau i ke kila kila, aia nā ʻano like ʻole o ke kila kila, e like me nā hiʻohiʻona 304 a me 316. Loaʻa i nā ʻano hoʻohālike like ʻole nā ​​waiwai kino

ʻO ka ʻokoʻa ma waena o 316 stainless steel a me 304 stainless steel

1. Hoʻohui kemika

304 kila kila: loaʻa iā 18% chromium a me 8% nickel, a me kahi mea liʻiliʻi o ke kalapona, manganese, a me ke silika.

316L kila kila: loaʻa iā 16% chromium, 10% nickel, a me 2% molybdenum, a me kahi mea liʻiliʻi o ke kalapona, manganese, a me ke silika.

2. Ke kū'ē i ka corrosion

304 kila kuhiliʻole: He maikaʻi kona pale ʻana i ka corrosion, ʻoi aku hoʻi no ka lewa ākea, ka wai, a me nā mea paʻa kemika me ka paʻa maikaʻi, akā maʻalahi i ka pitting a me ka intergranular corrosion i loko o ka media i loaʻa nā ion chloride.

316L kila kila: ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion ma mua o ka 304 stainless steel, ʻoi aku hoʻi no ka media i loaʻa nā ion chloride, acidic a me ka alkaline, me ka paʻa maikaʻi.

3. Ka ikaika a me ka paakiki

304 kila kila: maikaʻi ka ikaika a me ka paʻakikī, akā haʻahaʻa iki ma mua o 316L kila kila.

316L kila kila: Hoʻohālikelike ʻia me 304 kila kila, ʻoi aku ka ikaika a me ka paʻakikī.

4. Hana kuʻihao

304 kila kila: Loaʻa iā ia ka weldability maikaʻi a hiki ke hoʻohana ʻia no ka hapa nui o nā ʻano hana kuʻi, akā maʻalahi ia i ka corrosion intergranular ma lalo o nā kūlana wela.

316L stainless steel: Hoʻohālikelike ʻia me 304 stainless steel, paʻakikī ke wili, akā maikaʻi ka hana kuʻi ʻana ma lalo o nā kūlana wela kiʻekiʻe a ʻoi aku ka liʻiliʻi o ka corrosion intergranular.

5. Kūʻai like ʻole

Ke hoʻohālikelike ʻia me ke kila kalapona, ʻoi aku ka maikaʻi o ke kila kila, ʻoiai ma ke kila kila, ʻoi aku ka maikaʻi o ka 316 stainless steel, ʻoi aku ka nui ma muli o ke kumukūʻai kiʻekiʻe o ka hana a me ka lōʻihi o ke ola lawelawe, no laila e ʻoi aku ke kumukūʻai.

6. Ka laulā o ka hoʻohana

ʻO ke kila kila 316 ka nui o nā noi i hoʻohālikelikeʻia me ke kila kila 304. No ka laʻana, hiki ke hoʻohanaʻia nā mea kila kila 316 i kaʻoihana meaʻai, me nā mea lapaʻau, a hiki ke hana i kahi hana nui.

ʻO nā papa hana o 304 stainless steel

Ke kila kila 304, ma ke ʻano he kila maʻamau, hoʻohana nui ʻia i nā ʻano he nui ma muli o kona kūpaʻa kiʻekiʻe o ka wela a me ke kūpaʻa corrosion. No laila, ma kekahi mau wahi pulu, ke koho ʻana i ka 304 stainless steel hiki ke hōʻoia i ka pale ʻana i ka ʻōpala lōʻihi, no ka mea hiki ke hoʻohana ʻia e hana i nā paipu kila me ke kūpaʻa ikaika. ʻO kēia ke kumu i koho ʻia ai nā paipu kila kila 304 no ka lawe ʻana i ka pipeline.

Ma waena o nā huahana o kā mākou hui, ʻo nā mea maʻamaunā lepa kila kila, paipu kila kila, a mepaipu kila kila.