ASTM A276 S30400 1.4301 Flat bar

Mapulogalamu achitsulo osapanga dzimbiri ndi chinthu chosankha chonyamula madzi otchinga kapena udzi, ma slorries ndi mipweya yambiri, kutentha kwambiri kapena matupi obiriwira omwe akukhudzidwa. Chifukwa cha zokongoletsa za chitsulo chosapanga dzimbiri, chitoliro nthawi zambiri chimagwiritsidwa ntchito pogwiritsa ntchito zomangamanga.

Zimawonetsa kukana bwino kusalowerera ndale. Izi za alloy zimapanga mwa khumi ndi chimodzi, filimu yoteteza yomwe siyitalikirapo, koma imasunganso kukana kwa makutina kuposa kutentha.

A789 S31803 ndi S32205 ndi zitsulo ziwiri zosapanga dzimbiri zomwe zimagwiritsidwa ntchito kwambiri pantchito zosiyanasiyana. Mapaipi awa a duplex s31803 osakhala opanda chidwi amadziwika chifukwa chokana kwambiri kuwonongeka, mphamvu zazikulu, komanso kutopa kwambiri. A789 ndi lingaliro lomwe limakwirira osawoneka bwino komanso machubu opangidwa ndi chitsulo chosapanga dzimbiri.

Zitsulo zosapanga dzimbiri ndi chitsulo chomwe chimalimbana ndi dzimbiri. Ili ndi 11% chromium ndipo imatha kukhala ndi zinthu monga kaboni, zina zosakhala ndi zitsulo zina kuti mupeze zomwe akufuna. Kutsutsa kopanda dzimbiri kuti chiwonongeke kumabweretsa chifukwa cha chromium, omwe amapanga kanema wongokhala womwe umatha kuteteza nkhaniyo ndikuchira pamaso pa mpweya.

FSTELOLELOY C2000 Othamanga amaphatikizanso kukana kwa Exadizing Media ya C276 ndi kukana kwabwino kwa malo osakanikirana, kuphatikizapo madzi osokoneza bongo, kuphatikizapo ma inion. Imapangidwa kuti iperekenso zinthu zambiri kuposa protelloy ina. Izi zimakwaniritsidwa powonjezera zomwe zili pachiwonetsero cha chromium ndi molybdenum ndikuwonjezera mkuwa koma wogwira mtengo (1.6%). Kuphatikiza kwa mkuwa kumawonjezera kuchuluka kwa kutentha kwa C2000 kumayesedwe, hydrofluoric, ndi kuchepetsa hydrochloric acids.

Nickel Anoney othamanga
Chitsito chopanda maziko cha 316 chakhala chinthu chofunikira kwambiri kwa gawo la mafakitale. Chitsulo ichi ndi chrome chimadziwika kuti ndikukana kwake kuvunda, komanso kukhazikika kwake. 316 Chitsulo chosapanga dzimbiri chimatha kupangidwa muzosaso komanso machubu owuma kuti akwaniritse zosowa zapadera za kasitomala.

Ma welds omwe amapezeka ndi 304 \ / 304l ali ndi mphamvu yabwino komanso yowuma. Kuthana ndi mwayi woti muimbedwe ndikulimbikitsidwa kukhala ndi kukana kwenikweni. 304 \ / 304l ikhoza kupangidwa pakati pa 21009¡Ã 2350¡2 f.

Incrooy 800h Valnge Tili ndi mbiri yolimba mu malonda popanga mitundu yayikulu ya mitundu yosiyanasiyana ya makasitomala athu. Timakhala ngati infolisoy ma fronges omwe ndi odalirika komanso apamwamba kwambiri. Timagwiritsa ntchito ndalama zotsogola komanso makina apamwamba popanga assowm B564 SIMIL N08800 Stuliloy ma fronges 800.

316l 1.4401 s31603 Chipika chosapanga dzimbiri ndi njira yolimba komanso yolimba yofananira yomwe imagwiritsidwa ntchito pazosiyanasiyana za mafakitale ndi malonda. Izi s31603 chitoliro chimapangidwa kuchokera pazinthu zapamwamba za 316l osapanga dzimbiri mosapanga dzimbiri mosapanga chipongwe, oxidation ndi chomata, zomwe zimapangitsa kuti zikhale zabwino m'malo mwazinthu zovuta kapena zovuta.

Invalsel 718 ndi alloy-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium yomwe imagwiritsidwa ntchito kwambiri pamapulogalamu apamwamba monga Aweslospace ndi majini agalu. Chimodzi mwazinthu zofunika kwambiri pakupanga a Ism B670 Invelve 718 ndiye kuti mbale yogubuduza. Pali mitundu iwiri yayikulu ya mbale za Intery18 zomwe zilipo pamsika: kuwotcha mbale zowombera.

Izi zimathandizira kuthana ndi sulufuric acid. Ilinso ndi mawu apamwamba kwambiri, kuti apititsenso kukana kwake kuti athe kugwiritsa ntchito mankhwala ndi njira zomwe zimapangidwa ndi mitsinje yolimba ndi mpweya wosungunuka.
Illevesel 600 ivel nickel aldows

ASTM A240 Mtundu 2205 Plate ndi duwa losapanga dzimbiri lomwe limagwiritsidwa ntchito kwambiri m'mafakitale, kufufuza kwamafuta ndi mafuta, ndi ukadaulo wamadzi, ndi ukadaulo wamadzi. Mapepala 2205 amapangidwa kuchokera ku kalasi ya SAGIS 2205, chitsulo chosapanga dzimbiri, chomwe chimaphatikizika ndi chitsulo champhamvu.

ASMM A312 TP316 ndi njira yokhazikika ya msoko, komanso kuzizira kwambiri osakhazikika opaleshoni ya chitsulo chosapanga dzimbiri zomwe zimagwiritsidwa ntchito kutentha kwambiri ndi ntchito wamba. Chitoliro chosawoneka bwino mafakitale chimapangidwa kuchokera ku chromium, nickel, ndi molybdenum, omwe amapereka SS Quams Stuam Turnion ku kutukula ndi dzimbiri.

Cholumikizira chopondera chimapangidwa ndi zitatu zolekanitsidwa komanso kudziyimira pawokha ngakhale zigawo zikuluzikulu; Makoma, ma gaskets, ndi oboola; omwe amasonkhana ndi zikopa zina, zoyenera. Zowongolera zapadera zimafunikira pakusankha ndikugwiritsa ntchito zonse zomwe zimakhala ndi cholumikizira, zomwe zili ndi zotayira zotayirira.

FOSTELOLOY C2000 amagwiritsidwa ntchito m'mafakitale ambiri kuphatikizapo mafakitale a petrochemical, makonzedwe a mankhwala opanga mafuta, zophika zamafuta ndi zomera.

Nthambi ya hex ndi timisinkhu wa mbali zisanu ndi chimodzi zomwe zimayenda bwino komanso zomata zokhazikika ndi ma bolts. Ndiwo ma hex othamanga kwambiri ndipo ali ndi ulusi wamkati womwe umayambitsa vuto la bolt kapena hex mutu. Miteyo iyi ya hex imapezeka pamitundu yosiyanasiyana, kuchokera m4 mpaka m30.

Nickel Anoy 400 ndi Monl 400, omwe amadziwikanso kuti ndi N04400 Nictal-Copy-Copy-Copy kukhala makamaka mwa atatu a Nickel ndi chachitatu. Nickel Anoy 400 amadziwika chifukwa chokana kusiyanasiyana, kuphatikiza alkalis (kapena asidi), madzi amchere, ma hydrofluoric acid. Kuyambira monoy 400 kapena Aloy 400 ndi chitsulo chozizira chogwira ntchito, chivomerezichi chimakhala cholimba, kuuma ndi mphamvu. Pogwira ntchito yozizira astm B164 SARD N04400 bar stock, alloy imayang'aniridwa ndi kupsinjika kwamakina, komwe kumapangitsa kusintha kwa micrestructuctuctution ya Alloy.

Pofuna kupondereza kuwotcherera kwa mpweya, 304 \ / 304l mapaipi achitsulo osapanga dzimbiri amatha kujambulidwa ndi njira zolaula. Makina a Marc akuwonjeza, kukula kocheperako kwa osapanga dzimbiri ndi 0,04% -0.06% kaboni angagwiritsidwe ntchito ndi elekisi ya Austria, komwe sikungayambitse kuwonongeka kwa pakati. Kwa olamulira a magawidwe, pewani kukana pambuyo pokana thupi. , iyenera kusintha kukhala pa 304l osapanga dzimbiri kapena chitseko chokhazikika chosapanga dzimbiri.

Matumba a Pika Matumbo
mone400 Anoy Cuti
ASTM A182 F9 ALOR SUREE Steel ikhoza kusinthidwa malinga ndi zofunikira za makasitomala. Amagwiritsidwa ntchito kwambiri komanso magawo ena chifukwa cha ntchito zawo zabwino komanso zosayerekezeka.
Zitsulo zosapanga dzimbiri & ndodo

Nickel 200 Amalongosola Nickel 200 Malawi amakhala olimba, osasunthika, ndipo amaliza bwino. Kuphatikiza apo, Astm B564 SP52200 N02200 Zisoka zakhungu zimalimbana ndi kutengera ndale komanso zotsatsa, zimapangitsa kukhala bwino kugwiritsa ntchito zida zogwirizira.

Chivomerezochi chimatha kugonjetsedwa ndi nickel pansi pakuchepetsa mikhalidwe ndi chopanda chidwi kuposa momwe mungagwiritsire ntchito bwino, zimawonetsanso kukana kwa media.

SA240 1.4436 Plate imapezeka m'matumbo kuchokera ku 0.1875 mainchesi 4 mpaka 101.6 mm (zaka 1219.2 mpaka 3048 mm). Kutalika kwa mbale 1.4401 kumatha kusinthidwa malinga ndi zomwe makasitomala amafuna. Mutha kuyang'ana mtengo wa SS 316 pa chitoliro cha HT!

Chingwe chimakhala chokwera, milomo kapena rim, kunja kwa zakunja kapena mkati, zomwe zimathandiza kuwonjezera mphamvu (monga mtengo wamtambo kapena t-bat); Kuti mulumikizidwe mosavuta \ / kusamutsa kwa kulumikizana ndi chinthu china (monga chowala kumapeto kwa chitoliro, scal cylinder, etc., kapena pamunda wa mandala); kapena pokhazikitsa ndikuwongolera mayendedwe a makina kapena mbali zake (monga tambala mkati mwagalimoto kapena gudumu la tram, zomwe zimapangitsa mawilo kuti asamayendetse njanji). Mawu akuti "Flange" imagwiritsidwanso ntchito ngati chida chogwiritsidwa ntchito chopanga ma flanges.

Pali mitundu yosiyanasiyana yamiyala yokhazikitsidwa ndi dongosolo la muyeso. Pansi pa animer, makalasi omwe amakakamizidwa ndi kalasi 150 kudzera pa kalasi 2500.

904l ma bolts omwe amapangidwa ndi a ISO, ISO, aso, Ansme, UNI, BS ndi Bis Miyezo ndi Kulekerera. Timapanga ma bolts ndi ena othamanga a SS 904l pogwiritsa ntchito zida zapamwamba kwambiri. Makamaka-alloy osapanga dzimbiri 904l ndi austetic austeitic. Chimodzi mwazinthu zowonjezera kugwiritsa ntchito chilonoli ndichabwino kwambiri ku Scc kapena kupsinjika kwa zotsutsana ndi zosapanga dzimbiri za 904l.

Pinda yachisoni ya Titanium yomwe ili ndi mphamvu zowonjezera pa aluminiyamu &? Titanium Asthem B338 chitoliro?

Nilo Anoy 36, w.NR 1.3912, Inciar 36 ® ndi chitsulo chotsika kwambiri chomwe chili ndi 36% Nickel ndipo ali ndi gawo la kufalikira kwa gawo limodzi la chitsulo cha kaboni pafupifupi.

Iswees osawoneka bwino kwambiri a sing'anga osawoneka N06600 ndi Astm B167 ndi omwe amapangidwa kuti apirire kwambiri ndikubwera ndi chitsimikizo chachikulu.

Magalasi okhazikika - omwe adayikapo sayansi-nickel-cobalt matobala, Kovar Smows, ali ndi mzere wowonjezera wowonjezera wofanana ndi galasi lolimba mkati mwa kutentha kwina

Ma coil 625 amadziwika ndi kukana kwake kwabwino kwa oxidation, kutentha kwambiri komanso kutopa. ASTM B443 SANDO N06625 SIVELEILE imagwiritsidwa ntchito kwambiri mu anthospace, mankhwala kutengera ndi mafuta ndi mafakitale chifukwa champhamvu kwambiri.

Kuchulukitsa kwa titanium ndi pafupifupi 60% yomwe ya chitsulo chosapanga dzimbiri ndi nickel polosys, kupulumutsa thupi kumeneku kumapangitsa kuti ikhale chisankho chodziwika bwino pakugwiritsa ntchito monga Arrospace.

Zitsulo zosapanga dzimbiri za kalasi 304 ndiofanana ndi "18 \ / 8" chitsulo chosapanga dzimbiri; Ndiwosinthasintha kwambiri ndipo limagwiritsidwa ntchito ngati chitsulo chosapanga dzimbiri chomwe chimapezeka muzogulitsa zambiri, mitundu ndi zomaliza kuposa zina. Ili ndi mawonekedwe abwino komanso owuma.

Kugonjetsedwa kwa Prososion Fretelloy kumagwiritsidwa ntchito kwambiri ndi mafakitale a mankhwala. Kufunika koyenera kumabweretsa mwayi wovomerezeka ndi mphamvu zawo, thanzi komanso zachilengedwe, mafuta ndi mpweya, mafakitale a mankhwala osokoneza bongo.
Myanmar (Burmese)
Azerbaijani
Vietnamese
A belaruulian
Zopangidwa
ASTM A403 WP321 RAHD
Kukula OD: 1 \ / 2 "~ 48" "
Duptux Steel
\ / 5 kutengera
Itar 36 Nilo Anoy 36 W.NR 1.3912 K93600 ASTM F1684
304L chipika, S3040 chitoliro, chitoliro chachitsulo chopanda dzimbiri

Tikutsogolera a Alloy Steel Asm A182 F22 F22 Flange & Class Class Class 150, kalasi 300, kalasi 400, kalasi ya 900, & Class 1500.

Nthawi zambiri N08367 imatchedwanso Al6xn Al6xn ndi kaboni yotsika, yoyera kwambiri, nulytel-molybdenum yolimbana ndi crevice.
Chitoliro chachitsulo & chubu
Azerbaijani
Vietnamese
A belaruulian
Zopangidwa
ASTM A403 WP321 RAHD
A182 F9 F11 F12 F11 F51 ALOR FLING TLD
Duptux Steel
\ / 5 kutengera

ASTM B564 SIMNA STETNKE SIVEREL 601 ndi a Chromium-chromial alloy omwe amagwiritsidwa ntchito pazogwiritsa ntchito zomwe zimafunikira kukana kuwonongeka ndi kutentha. Alonje a Nickel iyi imayamba chifukwa cha kukana kwake kutentha kwa maxidation, kukhalabe ogwiritsa ntchito maxidation mpaka 2200¡

Alloy 800 ndi a nickeum-chromiam almoy mphamvu ndi mphamvu yayikulu komanso kukana kwa oxidation ndi kutupa kwambiri. ASTM B407 SINE N08800 infoloy 800 WR. 1.4876 Chitoliro chowala bwino chimagwiritsidwa ntchito kwambiri pomanga zida zofuna kukana kuchuluka, kukana kutentha, mphamvu, komanso kukhazikika pakuchita nawo ntchito mpaka 1500 ° C).

Mapaipi 254 amatha kupirira kupsinjika kwa makina opanga masewera olimbitsa thupi komanso aloy 254 osuma amagwira ntchito yopanikizika kwambiri komanso malo okhala.

Aswetse awa amapangidwa ndi akatswiri athu aluso pogwiritsa ntchito zida zapamwamba kwambiri malinga ndi zikhalidwe zokhazikitsidwa. Timapereka Asthem A307 Carbocten mashers osiyanasiyana ndipo amatha kukhala ndi chizolowezi chopangidwira makasitomala omwe atchulidwa. Pothandizidwa ndi gulu lodzipereka la akatswiri, tili odzipereka kupereka mzere wa nyenyezi za Astm A307 A307 Assoni a Carten.

304 Nphwemba zopondapondazikulu zimapangidwa ndi chitsulo chosapanga dzimbiri, zinthu wamba komanso zodziwika bwino muzogwiritsidwa ntchito zambiri zamakampani zomwe zimafunikira kukana kuwonongeka ndi oxidation. Nyansiweli iyi ya S30400 imakonzedwa pogwiritsa ntchito makina apadera ndi njira, zomwe zikuwonetsetsa kuti ndi olondola komanso odalirika.

C2000 Fritelloy Anoy Cund frotelloy C2000 Chipatuli
Gulani mapaipi osapanga dzimbiri 254 osuta osuta ndi ma piche 254
Astm A312 TP316 SMICILARICICICICICT TIPIP SMIP S31600 SMS SMS
ASTM B424 SING LEM8825 Spacer Run Austetic Nickel-Slamium-Cromium Aloya Flange
Din931 M4-M64 1.4539 904l osapanga dzimbiri pang'ono pang'ono theka la helt
Kuimbira 36: Opanda K93600, W.NR 1.3912
Mayina Ogulitsa: Nickel Anoy 36, Inter 36®, Nilo 6®, Pernifar 6 ®
Mapaso opanda pake ndi Astm A312 tp316 tde316 tdedied paipi
Asme B16.47 B16.36 Ndege ya b
S32750 Super Duplex Coil Chech Scannger 1.4410 1.4501 Coil
Astm ASME SB 164 Monil 400 Round Bar Office N04400 Nickel Anoy Bar
Kupanga Rame B36.10 ASME B36.34

FOSTELOLOY X OTHANDIZA A X, amadziwikanso kuti ndi othamanga a n06002, amalimbana bwino kwambiri komanso kulimba kwambiri. Zimakhala zolimbana kwambiri ndi kupsinjika koma kuli ndi malo abwino akakhala kuzunzidwa 16,00 kuzunzidwa mpaka kutentha mpaka 1,600f. Ndizoyeneranso kwa ziweto, zowonda ndi kutentha kwambiri chifukwa ndizosasangalatsa, kutentha koyenera komanso kosavuta kwa makina. Ichi ndichifukwa chake tikuganiza kuti likufuna X Freedines kwenikweni amapereka zabwino kwambiri padziko lonse lapansi - chiwonongeko ndi kukana kutentha.

Aloy 825 (ASTU88825) ndi Austetic Nickel-Sremium-Chromiam Inoy ndi zowonjezera za Molybdenum, mkuwa ndi Titanium.

htsspipe.com
Monl 400 imadziwika bwino chifukwa champhamvu kwambiri komanso mphamvu zosagonjetsedwa. Imagwira ntchito motentha mitundu yambiri, ndipo imapezeka m'njira zingapo pazogulitsa zosiyanasiyana. Monl 400 imagwiritsidwa ntchito kwambiri mu (pazikuto). Kugonjetsedwa ndi madzi otemberera ndi nyanja, kulimba kwake ndi mitundu yotsutsana ndi korona kumapangitsa kuti ikhale yabwino pantchito yogwiritsa ntchito (chitoliro) pokonzanso mafuta.

Zitsulo zosapanga dzimbiri 304 ndi 304l zimadziwikanso kuti zitsulo zosapanga dzimbiri 1.4301 ndi 1.307, motero. Lembani 304 ndichitsulo chosiyanasiyana komanso chosakhazikika chosinthasintha. Amatchulidwabe nthawi zina ndi dzina lake lakale, 18 \ / 8, omwe amachokera ku mtundu wa anthu 184 a Nomium ndi 8% Nickel.

Inter 36 ® ndi chitsulo-chitsulo chotsika kwambiri chomwe chili ndi 36% Nickel, IMPARS 36 ili ndi zochulukirapo pakukula kwa kutentha kwa a Crogenic pafupifupi + 260 ° C).

Montel Anoy K-500 chitoliro cham'mimba ndipo chikhomo chapezeka kuti chikulimbana ndi mpweya wowawasa. Pambuyo masiku 6 akumizidwa mosalekeza (3500ppm) hydrogen sulfade solutions pa acid pa acid ndi oyambira (kuyambira 1.0 mpaka 11.0), zonena za unyinji wa zigawo zosawoneka.

Pofuna kufafanizira mapaipi, ndikofunikira kuchotsa payipi yolunjika pa mapaipi. Mukamagwiritsa ntchito ma piipelines osiyanasiyana, mapaipi osiyanasiyana ayenera kugwiritsidwa ntchito. Pamene mapaipiwo amagwiritsidwa ntchito, chikopa chiyenera kugwiritsidwa ntchito kusintha kukula kwa mapaipi. Mukamacheza, chipika chanjira zitatu chowonekacho chimagwiritsidwa ntchito ngati cholumikizira cholumikizira, kuti chikhazikitse chipani cholumikizirana kapena kukula kwa nthawi yayitali komanso cholumikizira cholumikizira cha mapaipi. , Pakulumikizana ndi zida zosiyanasiyana, palinso zolumikizira ndi mapulagini a gawo la chida.

Astm A182 F5 F9 F11 F12 F22 F91 F91 FAREERES Chreme

FSTEOLLOY C2000 ikupezeka mu mitundu yosiyanasiyana ndi makulidwe amtunduwu, mtundu uwu wa chromium-molybdenum aroyoy amadziwika bwino chifukwa cha mphamvu zake zazikulu komanso kukana.

Mamembala a Aloy amalimbikitsidwa ndi kulumikizana kwa Niobium ndi Molybdenum omwe amapereka mphamvu kwambiri popanda chithandizo chamankhwala chowuma.

Amagwiritsidwa ntchito kwambiri mu zopondaponda m'mafuta ndi mafuta a gasi \ / kupanga ndi kusinthidwa kwa kutentha mu petrochemical \ / mankhwala.

Kugwiritsa ntchito motsutsana ndi Infoy 600 kwayambitsa kugwiritsa ntchito m'njira zosiyanasiyana zokhudzana ndi kutentha kwa Crortologenic kupita pamwamba 2000¡f (1095f).

Zizindikiro za Nickel-Copy-Copy 400 monol 2.4360 molunjika rod ndiyabwino kwambiri opsinjika ku chloride ku chloride movutikira mukakumana ndi zowononga m'matumbo. Monl 400 ndi a Haloy ndi Nickel omwe amadziwika masiku ano chifukwa cha ntchito yake yayitali. Alloy ali ndi kukana bwino acid ndi alkali. Kuphatikiza apo, ili ndi mphamvu zabwino zokhala ndi mphamvu, duckity, kukhala waulimi wabwino kwambiri, ndipo imatha kuumitsidwa ndi ntchito yozizira. Kuphatikiza apo, itha kugwiritsidwa ntchito poizona ndi kutentha kuyambira kuchotsera mpaka 538 digiri Celsius.

S32750 kapena Den W.NR. 1.4410, duplex 2507 ndi chitsulo chosapanga chosapanga cha 25% chremium, 4% Nickel, monga zida zamagetsi, zam'madzi zam'madzi.
Myanmar (Burmese)
Azerbaijani
Vietnamese
A belaruulian
Zopangidwa
ASTM A403 WP321 RAHD
Kukula OD: 1 \ / 2 "~ 48" "
Duptux Steel
\ / 5 kutengera
Itar 36 Nilo Anoy 36 W.NR 1.3912 K93600 ASTM F1684
KOR8367 SUMFY SUBE AL6XN WOPHUNZITSIRA

Imatha kupirira mankhwala osiyanasiyana osakhazikika komanso osasinthasintha, ndikuwonetsa kukana kwakukulu ndikumenya ndi Crevice pamaso pa chlorides ndi ma halides ena.

La Tubiria falofer 800 es Unas Tuber debistectcia que tves alk a ma oxidicion y la carburacion. Por Lo Ponto, Estas Turdias se mailizan en eplicacianies Dorso sessere recrosion y la carbukiya.

Chromium yapamwamba, molybdenum ndi nayitrogeni imapangitsa kuti zikhale bwino kwambiri (zomwe zingachitike) zitsulo zokongoletsera ndi zotupa zosapanga dzimbiri, komanso kutentha kotsika kwambiri kuposa 50¡c.

ASTM A105 (omwe amadziwikanso kuti asme sa 105) amaphimba chisamaso popanda kupatsidwa chitsulo cha kaboni

Ma welds omwe amapezeka ndi 304 \ / 304l ali ndi mphamvu yabwino komanso yowuma. Kuthana ndi mwayi woti muimbedwe ndikulimbikitsidwa kukhala ndi kukana kwenikweni. 304 \ / 304l ikhoza kupangidwa pakati pa 21009. 250¡2ã F.