Super Duplex Steel S32750 Tube, Zopangira, Mipiringidzo, Mapepala, Zopangira
Zopezeka
Chubu chopanda msoko, mbale, ndodo, zopangira, zomangira, zopangira mapaipi.
Miyezo Yopanga
| Miyezo yopangira | |
| Zogulitsa | Chithunzi cha ASTM |
| Mipiringidzo, mizere ndi mbiri | A276,484 |
| Mbale, Mapepala ndi Mzere | A240, A480 |
| Mapaipi Opanda Msoko ndi Owotcherera | A790, A999 |
| Zosakaniza Zopanda Msoko ndi Welded | A789, A1016 |
| Zosakaniza | A815, A960 |
| Mapaipi opangidwa kapena ogubuduza ndi zopangira zopukutira | A182, A961 |
| Kupanga ma billets ndi ma billets | A314, A484 |
Chemical Composition
| % | Fe | Cr | Ni | Mo | C | Mn | Si | P | S | Cu | N |
| Min | moyenera | 24.0 | 6.0 | 3.0 | 0.24 | ||||||
| Max | 26.0 | 8.0 | 5.0 | 0.030 | 1.20 | 0.80 | 0.035 | 0.020 | 0.50 | 0.32 |
Zakuthupi
| Kuchulukana | 7.75g/cm3 |
| Kusungunuka | 1396-1450 ℃ |
Zithunzi za S32750
2507 ndi super duplex chitsulo chosapanga dzimbiri chokhala ndi kukana bwino kwa dzimbiri ndi mphamvu kuposa 2205. Zimaphatikiza zinthu zopindulitsa kwambiri zazitsulo zambiri za ferritic ndi austenitic ndipo, chifukwa cha chromium yapamwamba ndi molybdenum, zimakhala zotsutsana kwambiri ndi yunifolomu, pitting ndi corrosion.Mapangidwe a magawo awiri amatsimikizira kuti chitsulo chimakhala ndi kukana kwambiri kupsinjika kwa corrosion cracking ndi mphamvu zamakina apamwamba.
Kuchuluka kwa chromium ndi molybdenum kumapangitsa kuti ikhale yolimba kukana kuwonongeka konse kwa ma organic acid monga formic acid, acetic acid, ndi zina zambiri, komanso imakhala ndi kukana kwa dzimbiri kwa ma inorganic acid, makamaka omwe ali ndi ma chloride.Poyerekeza ndi 904L, yomwe idapangidwa mwapadera kuti igonjetse sulfuric acid yoyera, 2507 ili ndi kukana kwa dzimbiri kopanda kuchepetsedwa kwa sulfuric acid wosakanikirana ndi ayoni a chloride.
Gulu la 316L silingagwiritsidwe ntchito m'malo a hydrochloric acid, limatha kuwononga dzimbiri m'deralo kapena kuwonongeka konse, pomwe 2507 ingagwiritsidwe ntchito m'malo osungunuka a hydrochloric acid, okhala ndi mphamvu zotsutsa-wanga komanso zotsutsa-mng'oma.Mpweya wochepa wa carbon 2507 umachepetsa kwambiri chiopsezo cha mpweya wa carbide mu intergranular panthawi ya chithandizo cha kutentha ndipo, chifukwa chake, umagonjetsedwa kwambiri ndi carbide-related intergranular corrosion.
2507 ili ndi mphamvu zopondereza kwambiri, mphamvu zokhuza komanso kukulitsa kwamafuta pang'ono komanso kuwongolera kwamafuta ambiri, izi ndizoyenera magawo ambiri ampangidwe ndi magawo amakina.
2507 sayenera kuyikidwa m'malo otentha kuposa 300 ℃ kwa nthawi yayitali, zomwe zingafooketse kulimba kwake.
Kukaniza Kukaniza Kwa Zinthu za S32750
1. Kukana dzimbiri
Kuchulukira kwa chromium ndi molybdenum mu SAF 2507 kumapangitsa kuti zisawonongeke ndi dzimbiri zambiri za ma organic acid monga formic acid ndi acetic acid.SAF 2507 alloy imakhalanso ndi kukana kwambiri kwa ma inorganic acid, makamaka omwe ali ndi ma chloride.kukana dzimbiri.
Poyerekeza ndi 904L, SAF2507 ili ndi dzimbiri kukana kuchepetsedwa sulfuric asidi wothira chloride ayoni.904L ndi aloyi mu boma austenitic, mwapadera kukana koyera sulfuric acid dzimbiri.
316L kalasi sangathe kugwiritsidwa ntchito mu hydrochloric acid chilengedwe, zikhoza kukhala pansi dzimbiri m'deralo kapena dzimbiri wonse.SAF2507 angagwiritsidwe ntchito kuchepetsedwa hydrochloric acid chilengedwe, ndi amphamvu odana ndi banga ndi odana ndi mpata dzimbiri dzimbiri.
2. Intergranular dzimbiri
The m'munsi mpweya zili SAF 2507 kwambiri amachepetsa chiopsezo intergranular carbide mpweya pa kutentha kutentha, Choncho, aloyi ndi kugonjetsedwa kwambiri ndi carbide zokhudzana intergranular dzimbiri.
3. Stress dzimbiri akulimbana
Kapangidwe ka duplex kwa SAF 2507 kumapangitsa kuti ikhale yolimba kwambiri kupsinjika kusweka kwa dzimbiri.Chifukwa cha kuchuluka kwa aloyi, kukana kwa dzimbiri ndi mphamvu ya SAF 2507 ndizabwino kuposa 2205.
Ming'alu imakhala yosapeŵeka pomanga, ndi zina zotero, zomwe zimapangitsa zitsulo zosapanga dzimbiri kuti ziwonongeke kwambiri m'madera a chloride.SAF 2507 ili ndi kuthekera kolimba kokana kuwononga dzimbiri.The isocorrosion pamapindikira SAF 2507 mu asidi sulfuric munali 2000ppm mankhwala enaake ayoni 0.1 mm/chaka;isocorrosion pamapindikira mu hydrochloric acid 0.1 mm/chaka.
S32205 Zida Zogwiritsa Ntchito Magawo
2507 zitsulo zosapanga dzimbiri zimagwiritsidwa ntchito pamakampani amafuta ndi gasi;nsanja zamafuta akunyanja za Shipotian (machubu osinthanitsa kutentha, machubu opangira madzi ndi njira zoperekera madzi, njira zotetezera moto, makina opopera madzi, makina okhazikika amadzi; zida za petrochemical; zida za desalination (desalination) (ndi zida zamapaipi othamanga kwambiri, mapaipi amadzi am'nyanja); makina ndi zigawo zamapangidwe zomwe zimafuna mphamvu zonse komanso kukana kwa dzimbiri; kuyaka (kutulutsa mpweya) zida zoyeretsera gasi.
Mapaipi amakampani a Chemical, zotengera, zosinthira kutentha, mapaipi amadzi am'nyanja m'mafakitale ochotsa mchere, zida zamafuta ndi gasi, makina opangira magetsi opangira magetsi, makina ochapira, nsanja zomangira, matanki amadzimadzi amadzimadzi.
