I-Super Duplex Steel S32750 Tube, Ukufakwa, Amabha, Amashidi, Ama-Forgings
Imikhiqizo Etholakalayo
Ishubhu elingenamthungo, Ipuleti, Induku, Iziqashi, Izixhumi, Izifakelo zamapayipi.
Amazinga Okukhiqiza
| Amazinga okukhiqiza | |
| Umkhiqizo | I-ASTM |
| Amabha, amapheshana namaphrofayili | A276, A484 |
| Ipuleti, Ishidi kanye Nomdweshu | A240, A480 |
| Amapayipi Angenamthungo futhi Ashiselwe | A 790, A 999 |
| Ukufakwa Kwepayipi Elingenamthungo futhi Elishiselwe | A 789, A 1016 |
| Ukufakwa | A815, A960 |
| Ama-flange amapayipi afojiwe noma agingqelwe kanye nokufakwa komgunyathi | A182, A961 |
| Ukuqamba amabhilidi namabhilidi | A314, A484 |
Ukwakheka Kwamakhemikhali
| % | Fe | Cr | Ni | Mo | C | Mn | Si | P | S | Cu | N |
| Okuncane | olinganiselayo | 24.0 | 6.0 | 3.0 | 0.24 | ||||||
| Ubukhulu | 26.0 | 8.0 | 5.0 | 0.030 | 1.20 | 0.80 | 0.035 | 0.020 | 0.50 | 0.32 |
Izakhiwo Zomzimba
| Ukuminyana | 7.75 g/cm3 |
| Iyancibilika | 1396-1450 ℃ |
Izinto ezibonakalayo ze-S32750
I-2507 iyinsimbi engagqwali eyi-super duplex enokumelana nokugqwala okungcono namandla kuno-2205. Ihlanganisa izici ezizuzisa kakhulu zezinsimbi eziningi ze-ferritic ne-austenitic futhi, ngenxa yokuqukethwe kwayo okuphezulu kwe-chromium ne-molybdenum, inokumelana okuhle kakhulu nokugqwala okufanayo, umgodi kanye nokugqwala.Isakhiwo esinezigaba ezimbili siqinisekisa ukuthi insimbi inokumelana okuphezulu nokucindezeleka kokuqhekeka kokugqwala kanye namandla aphezulu emishini.
Okuqukethwe okuphezulu kwe-chromium ne-molybdenum kuyenza ibe nokumelana okuqinile nokugqwala sekukonke kwama-asidi ephilayo njenge-formic acid, i-acetic acid, njll., futhi inokumelana nokugqwala okuqinile kuma-asidi angaphili, ikakhulukazi lawo aqukethe ama-chloride.Uma kuqhathaniswa ne-904L, eklanyelwe ngokukhethekile ukumelana ne-sulfuric acid ehlanzekile, i-2507 inokumelana nokugqwala okunamandla ku-sulfuric acid exutshwe nama-ion e-chloride.
Ibanga elingu-316L alikwazi ukusetshenziswa endaweni ye-hydrochloric acid, lingase libe ngaphansi kokugqwala kwendawo noma ukugqwala okuphelele, kuyilapho i-2507 ingasetshenziswa endaweni ehlanjululwe ye-hydrochloric acid, enekhono eliqinile lokulwa nendawo kanye nekhono lokunqanda ukubola.Okuqukethwe kwekhabhoni ephansi kwe-2507 kunciphisa kakhulu ingozi yemvula ye-carbide ku-intergranular ngesikhathi sokwelashwa kokushisa futhi, ngakho-ke, imelana kakhulu ne-carbide-intergranular corrosion ehlobene.
I-2507 inamandla acindezelayo aphezulu, amandla omthelela kanye ne-coefficient ephansi yokwandisa okushisayo kanye ne-thermal conductivity ephezulu, lezi zici zifanele izingxenye eziningi zesakhiwo nezingxenye zemishini.
I-2507 akufanele ibekwe endaweni yokushisa engaphezu kuka-300 ℃ isikhathi eside, engase yenze buthaka ukuqina kwayo.
I-Corrosion Resistance Yezinto Ze-S32750
1. Ukumelana nokugqwala
Okuqukethwe okuphezulu kwe-chromium ne-molybdenum kwe-SAF 2507 kuyenza imelane kakhulu nokugqwala kwenqwaba yama-organic acid afana ne-formic acid ne-acetic acid.Ingxubevange ye-SAF 2507 nayo inokumelana okuqinile nama-acids angaphili, ikakhulukazi lawo aqukethe ama-chloride.ukumelana nokugqwala.
Uma kuqhathaniswa ne-904L, i-SAF2507 inokumelana nokugqwala okuqinile ku-diluted sulfuric acid exutshwe nama-ion e-chloride.I-904L iyingxubevange esesimweni se-austenitic, eklanyelwe ngokukhethekile ukumelana nokugqwala okuhlanzekile kwe-sulfuric acid.
Ibanga elingu-316L alikwazi ukusetshenziswa endaweni ye-hydrochloric acid, lingase libe ngaphansi kokugqwala kwendawo noma ukugqwala sekukonke.I-SAF2507 ingasetshenziswa endaweni ye-dilute hydrochloric acid, enekhono eliqinile lokulwa nendawo kanye nekhono lokunqanda ukubola.
2. Ukugqwala kwe-Intergranular
Okuqukethwe kwekhabhoni ephansi kwe-SAF 2507 kunciphisa kakhulu ubungozi bemvula ye-intergranular carbide ngesikhathi sokwelashwa kokushisa, ngakho-ke, le alloy imelana kakhulu ne-carbide-intergranular corrosion.
3. Ukuqhekeka kokugqwala kwengcindezi
Isakhiwo esiyiduplex se-SAF 2507 siyenza imelane kakhulu nokucindezeleka kokuqhekeka kokugqwala.Ngenxa yokuqukethwe kwayo okuphezulu kwe-alloy, ukumelana nokugqwala namandla e-SAF 2507 kungcono kune-2205.
Imifantu cishe ayinakugwenywa ekwakhiweni, njll., okwenza insimbi engagqwali ibe lula ukugqwala ezindaweni ezine-chloride.I-SAF 2507 inamandla aqinile okumelana nokugqwala kwe-crack.Ijika le-isocorrosion le-SAF 2507 ku-sulfuric acid equkethe i-2000ppm chloride ion 0.1 mm/ngonyaka;Ijika le-isocorrosion ku-hydrochloric acid engu-0.1 mm/ngonyaka.
I-S32205 Material Application Areas
2507 insimbi engagqwali isetshenziswa embonini kawoyela negesi;amapulatifomu kawoyela we-Shipotian angaphesheya kwezilwandle (amashubhu okushintshanisa ukushisa, ukuhlanzwa kwamanzi kanye nezinhlelo zokuphakelwa kwamanzi, izinhlelo zokuvikela umlilo, amasistimu wokufuthwa kwamanzi, izinhlelo zokusimamisa amanzi; imishini ye-petrochemical; imishini yokukhipha usawoti emanzini (ukukhipha usawoti emanzini) (kanye nemishini emapayipini anomfutho ophezulu, amapayipi amanzi olwandle); kanye nezingxenye zesakhiwo ezidinga kokubili amandla aphezulu kanye nokumelana nokugqwala okuphezulu, ukusha (ukuqeda) okokusebenza kokuhlanza igesi.
Amapayipi embonini yamakhemikhali, iziqukathi, izinto ezishintsha ukushisa, amapayipi amanzi olwandle ezimbonini ezikhipha usawoti emanzini, okokusebenza embonini kawoyela negesi, izinhlelo zokususa igesi ye-flue flue desulfurization, okokugeza, imibhoshongo yokumuncwa, amathangi oketshezi amakhemikhali.
