Alloy	%	Ni	Cr	Mo	Cu	N	C	Mn	Si	P	S
254SMO	Min.	17.5	19.5	6	0.5	0.18
Max.	18.5	20.5	6.5	1	0.22	0.02	1	0.8	0.03	0.01

254SMO mau waiwai kino :

ʻO ka mānoanoa	8.0 g/cm3
Lae hehee	1320-1390 ℃

254SMO ka palena iki ma ka lumi wela:

Kūlana	Ka ikaika tensile Rm N Rm N/mm2	E hāʻawi i ka ikaika RP0.2N/mm2	ʻO ka lōʻihi A5 %
254 SMO	650	300	35

 

ʻano:
ʻO ke kiʻekiʻe kiʻekiʻe o ka molybdenum, chromium a me ka nitrogen i hana ʻia 254SMO he kūpaʻa maikaʻi loa i ka pitting a me ka hana corrosion crevice. Ua hoʻomaikaʻi ʻo Copper i ka pale ʻana i ka corrosion i kekahi o ka waikawa. Eia kekahi, ma muli o kona kiʻekiʻe o ka nickel, chromium a me ka molybdenum, i loaʻa i ka 254SMO kahi hana koʻikoʻi maikaʻi.
1.A hailona o ka laulā huahelu o ka hoʻohana 'ana ua hōʻike mai i ka iin kiʻekiʻe wela, 254SMO i loko o ke kai wai no hoi nui kū'ē i ka corrosion hana āha, wale kekahi mau 'ano o ka kuhiliʻole kila me keia hana.
2.254SMO e like me ka pepa bleach i koi 'ia no ka hana 'ana i ka acidic solution a me ka solution halide oxidative corrosion resistance a me ka corrosion resistance hiki ke hoʻohālikelike i ka mea paʻa loa i loko o ka base alloy o nickel a me titanium alloys.
3.254SMO ma muli o ke kiʻekiʻe o ka nitrogen content, no laila ʻoi aku ka kiʻekiʻe o kona ikaika mechanical ma mua o nā ʻano ʻano ʻē aʻe o ke kila stainless austenitic. Eia kekahi, 254SMO hiki ke hoʻonui nui ʻia a me ka hopena ikaika a me ka weldability maikaʻi.
Hiki i ka 4.254SMO me ka molybdenum kiʻekiʻe ke kiʻekiʻe o ka oxidation i ka annealing, a ma hope o ka hoʻomaʻemaʻe ʻana i ka waika me ka ʻili ʻeleʻele ma mua o ke kila kila maʻamau. Eia naʻe, ʻaʻole i hoʻopilikia maikaʻi ʻia no ka pale ʻana o kēia kila.

 

Hoʻolāʻau metallurgical
ʻO 254SMO ka hoʻolālā kubiko kubiko ma ke alo. No ka loaʻa ʻana o ke ʻano austenitic, 254SMO general annealing i ka 1150-1200 ℃. I kekahi mau hihia, ʻo ka mea paha me nā metala o ka pae waena (χ phase a me α-phase). Eia nō naʻe, ʻaʻole i hoʻopilikia maikaʻi ʻia ko lākou hopena ikaika a me ke kūpaʻa corrosion i nā kūlana maʻamau. Ke kau ʻia i loko o ka laulā o 600-1000 ℃, hiki iā lākou ke kaʻina i ka ua palena o ka palaoa.

 

ʻO ke kūpaʻa ʻino
ʻO 254SMO me ka haʻahaʻa haʻahaʻa haʻahaʻa, ʻo ia hoʻi ka liʻiliʻi loa o ka pōʻino o ka hoʻomehana ʻana o ka ua carbide. ʻOiai i loko o ka 600-1000 ℃ ma hope o hoʻokahi hola sensitization hiki nō iā Strauss ma o ka intergranular corrosion hoʻāʻo (Strauss Test ASTMA262 kauoha E). Akā naʻe, no ka mea o ka mea kila kila kiʻekiʻe. Ma ka pae wela i ʻōlelo ʻia ma luna o ka pae intermetallic me ka hiki ke hoʻoheheʻe ʻia i ka ua palena o ka palaoa. ʻAʻole hiki i kēia mau sediments ke hana i ka corrosion intergranular i loko o nā noi media corrosive, a laila, hiki ke hana ʻia ke kuʻi ʻana me ka ʻole o ka corrosion intergranular. Inā he kila kila maʻamau i loko o ka hoʻonā i loaʻa ka chloride, bromide a iodide paha, e hōʻike ana ia i ka pitting, crevice corrosion a stress corrosion cracking form e localized corrosion. Eia nō naʻe, i kekahi mau hihia, ʻo ka loaʻa ʻana o ka halide e hoʻolalelale i ka corrosion like. ʻOi aku i ka waika non-oxidizing. Ma ka sulfuric acid maʻemaʻe, 254SMO me ka ʻoi aku ka nui o ka corrosion kūʻē ma mua o 316 (maʻamau stainless steel), akā me ka abated corrosion kūpaʻa hoʻohālikelike ʻia me 904L (NO8904) stainless steel i nā kiʻekiʻe kiʻekiʻe. I loko o ka sulfuric acid i loko o chloride ions, 254SMO me ka nui loa corrosion resistance ability.The 316 hiki ole ke hoʻohana no ka kuhiliʻole kila i hydrochloric acid no ka mea e hiki mai localized corrosion a me ka like corrosion, akā, 254SMO hiki ke hoʻohana 'ia i diluted hydrochloric waika ma ka laulā wela. , ma lalo o ka palena ʻāina ʻaʻole pono e hopohopo no ka hiki ʻana o ka corrosion. Eia naʻe, pono mākou e ho'āʻo e pale i nā māwae āpau. I loko o ka fluoride silicate (H2SiF4) a me ka hydrofluoric acid (HF), he palena loa ka pale ʻana o ke kila kila maʻamau, a hiki ke hoʻohana ʻia ʻo 254SMO i kahi ākea ākea a me ka ʻike.

 

kahua noi:
ʻO 254SMO kahi mea nui i hiki ke hoʻohana ʻia i nā noi ʻoihana he nui.
1. ʻO kaʻaila, nā mea hana petrochemical, nā mea hana petro-chemical, e like me ka bellows.
2. ʻO ka pulupulu a me ka pepa bleaching lako, e like me ka pulp kuke, bleaching, holoi holoi i hoʻohana 'ia i loko o ka barela a me ka cylinder kaomi rollers, a pela aku.
3. Power mea kanu flue kinoea desulphurization lako, ka hoʻohana 'ana i nā mea nui: ka absorption hale kiaʻi, flue a me ka hooki ana i ka pā, loko o ka hapa, spray system.
4. Ma ke kai a i ʻole ka ʻōnaehana wai kai, e like me nā mea kanu mana e hoʻohana ana i ka wai kai e hoʻomaʻalili i ka Condenser paʻa lahilahi, desalination o nā mea hana wai kai, hiki ke hoʻohana ʻia ʻoiai ʻaʻole hiki ke kahe ka wai i loko o ka hāmeʻa.
5. ʻO nā ʻoihana desalination, e like me ka paʻakai a i ʻole nā ​​​​mea hana desalination.
6. Heat exchanger, i loko o ka hana o ka chloride ion.