347/347H intsimbi engatyiwa

I-alloy 347 i-balanced, i-austenitic, i-chromium yensimbi equkethe i-columbium ethatha ingqalelo ekupheleni kwemvula ye-carbide, kwaye ngoko ke i-intergranular corrosion. Ingxubevange engama-347 ilungelelaniswa kukwanda kwechromium kunye netantalum kwaye inika iipropati eziphezulu zokukrazula kunye noxinzelelo kune-alloy 304 kunye ne-304L, enokuthi isetyenziselwe utyhileko apho uvakaliso kunye nokuhlwa kwe-intergranular kuxhalabisa. ukuba nokumelana nokugqwesa okugqwesileyo, ngcono kune-alloy 321. Ingxubevange 347H yeyona ndlela iphezulu yekhabhoni yokwakheka kweAlloy 347 kwaye ibonise ubushushu obuphezulu kunye neempawu ezirhubuluzayo.
Iimpawu

• Uxinzelelo oluphezulu lokunyuka kunye neempawu zokuqhekeka xa kuthelekiswa ne-304
• Ilungele inkonzo yobushushu obuphezulu
• Iyaloyisa uvakalelo kunye neenkxalabo zokubola kwe-intergranular
• Ingasetyenziswa kwizicelo zobushushu obuphakamileyo
• Ngenxa yokuzinzisa imathiriyeli inika ukuxhathisa okungcono xa kuthelekiswa ne-304/304L

• Ukwenziwa kweeKhemikhali
• Izixhobo zokulungisa ukutya kunye nokugcinwa
• I-Petroleum Refining fluid catalytic cracking units, inkonzo ye-polythionic acid
• IMveliso yoShishino
• iNkunkuma yoBuyise ubushushu

I-alloy 347 ipleyiti yensimbi engenasici ibonisa ukuxhathisa kokutya okuqhelekileyo okufana no-304. Yenzelwe ukusetyenziswa kwi-chromium carbide precipitation scope ngu-800 - 1500 ° F (427 - 816 ° C) apho i-alloys engalungelelananga njenge-304 ixhomekeke kwi-intergranular. uhlaselo. Kulo mda weqondo lobushushu, ukuxhathisa kokutya kwe-Alloy 347 ipleyiti yentsimbi engenasici ingcono kune-Alloy 321 ipleyiti yensimbi engenasici. Ingxubevange 347 ukongeza yenza ngandlel ithile iphezulu iAlloy 321 kwiimeko oxidizing ngamandla ukuya 1500 ° F (816 ° C). I-alloy ingasetyenziswa njengenxalenye yezisombululo ze-nitric; uninzi lwee-asidi ze-organic diluted kumaqondo aphakathi kunye nakwi-asidi ye-phosphoric ecocekileyo kumaqondo aphantsi kunye ne-10% yezisombululo ezixutywe kumaqondo aphezulu. I-alloy 347 ipleyiti yensimbi engenasici ixhathisa i-polythionic acid stress corrosion cracking kwinkonzo ye-hydrocarbon. Isenokusetyenziswa kwikloridi okanye kwi-fluoride izisombululo ze-caustic zasimahla kumaqondo obushushu aphakathi. I-alloy 347 ipleyiti yensimbi engenasici ayisebenzi kakuhle kwizisombululo zekloridi, nakwizinto ezincinci, okanye kwi-asidi yesulfuric.