SS316 simbi dzisina tsvina dzinowanzo shandiswa kune njanji yakaiswa padyo nemadziva kana makungwa.SS304 ndiyo inonyanya kushandiswa mukati kana kunze.
SeAmerican AISI mamakisi ekutanga, musiyano unoshanda pakati pe304 kana 316 uye 304L kana 316L ndiyo kabhoni yemukati.
Makabhoni emhando ye 0.08% yepamusoro ye304 uye 316 uye 0.030% yepamusoro yemhando 304L ne316L.
Mamwe maelementi ese akanyanya kufanana (nickel range ye304 is 8.00-10.50% uye ye304L 8.00-12.00%).
Kune simbi mbiri dzeEurope dze'304L' mhando, 1.4306 uye 1.4307.Iyo 1.4307 ndiyo mutsauko unowanzo kupihwa, kunze kweGermany.Iyo 1.4301 (304) uye 1.4307 (304L) ine carbon range ye 0.07% yepamusoro uye 0.030% yakawanda, zvichiteerana.Iyo chromium uye nickel mitsara yakafanana, nickel yemagiredhi ese ane 8% mashoma.1.4306 igiredhi reGerman uye rine 10% shoma Ni.Izvi zvinoderedza ferrite yemukati yesimbi uye yakaona kuve yakakosha kune mamwe maitiro emakemikari.
Magiredhi eEuropean emhando dze316 ne316L, 1.4401 uye 1.4404, anofananidzwa pazvinhu zvese zvine kabhoni siyana 0.07% inokwana 1.4401 uye 0.030% yepamusoro ye1.4404.Kune zvakare yakakwira Mo shanduro (2.5% shoma Ni) ye316 uye 316L muEN system, 1.4436 uye 1.4432 zvakateerana.Kuti uwedzere kuomesa zvinhu, kune zvakare giredhi 1.4435 iro rakakwirira muMo (2.5% zvishoma) uye muNi (12.5% zvishoma).
Mhedzisiro yecarbon pane corrosion resistance
Iyo yakaderera kabhoni 'variants' (316L) yakagadzwa sedzimwe nzira kune iyo 'standard' (316) carbon range giredhi yekukunda njodzi yeintercrystalline corrosion (weld decay), iyo yakaonekwa sedambudziko mumazuva ekutanga ekushandiswa kwe. simbi idzi.Izvi zvinogona kuguma kana simbi ikabatwa mutembiricha ye450 kusvika 850°C kwenguva yemaminetsi akati wandei, zvichienderana netembiricha uye yozoratidzwa kune hukasha nharaunda dzinoparadza.Corrosion inobva yaitika pedyo nemiganhu yezviyo.
Kana iyo carbon level iri pasi pe 0.030% saka kupera kwekristallline uku hakuitike mushure mekusangana nematembiricha aya, kunyanya kune rudzi rwenguva dzinowanzo itika munzvimbo inobatwa nekupisa kwewelds muzvikamu 'zvakakora' zvesimbi.
Mhedzisiro yekabhoni level pane weldability
Pane maonero ekuti mhando dzekabhoni dzakaderera dziri nyore kupinza kupfuura mhando dzekabhoni.
Ikoko hakuita seine chikonzero chakajeka cheizvi uye misiyano ingangove yakabatana neiyo yakaderera simba rezasi kabhoni mhando.Iyo yakaderera kabhoni mhando inogona kuve nyore kuumba uye kuumba, izvo zvinogona zvakare kukanganisa mazinga ekunetseka kwakasara akasiya simbi mushure mekugadzira uye kuenderana newelding.Izvi zvinogona kukonzera kuti 'standard' kabhoni mhando dzinoda simba rakawanda kuti dzibate panzvimbo kana dzangogadzirirwa-welding, paine tsika yekudzokera kumashure kana isina kunyatsobatwa panzvimbo.
Zvishandiso zvewelding zvemhando mbiri idzi zvinoenderana nekabhoni yakaderera, kudzivirira njodzi yekuora mukati meiyo yakaomeswa weld nugget kana kubva mukupararira kwekabhoni ichipinda mumubereki (yakatenderedza) simbi.
Dual-certification ye low carbon composition steels
Simbi dzakagadzirwa nekutengesa, dzichishandisa nzira dzemazuva ano dzekugadzira simbi, dzinowanzogadzirwa semhando yakaderera kabhoni sechinhu chechokwadi nekuda kwekutonga kwakagadziridzwa mukugadzirwa kwemazuva ano.Nekuda kweizvozvo zvigadzirwa zvesimbi zvakapedzwa zvinowanzopihwa kumusika 'dual certified' kune ese magiredhi mazita sezvo achizogona kushandiswa kugadzira gadzira chero giredhi, mukati meimwe mwero.
304 Mhando
TS EN 10088-2 1.4301 / 1.4307 kune chiyero cheEuropean.
ASTM A240 304 / 304L KANA ASTM A240 / ASME SA240 304 / 304L kuAmerican pressure vessel standards.
316 Types
TS EN 10088-2 1.4401 / 1.4404 kune chiyero cheEuropean.
ASTM A240 316 / 316L OR ASTM A240 / ASME SA240 316 / 316L, kuAmerican pressure vessel standards.
Nguva yekutumira: Aug-19-2020