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904L saxan bir ah oo aan lahayn

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Sharaxaada

904l birta daxalka ah waa bir aan fiicnayn oo superaustenitic ah oo loo abuuray iska caabbinta daxalka dhexdhexaadka ah ama sare ee deegaan balaadhan oo kala duwan.Isku dhafka chromium iyo nikkel, oo lagu daro molybdenum iyo copper waxay bixisaa iska caabin aad u fiican. ilaa 316L iyo 317L.Waxay u horumartaa si ay u dillaacdo degaannada ay ku jiraan asiidhyada sulfuric ee la milo.904l saxan bir ah oo aan fiicneyn ayaa iska caabin wanaagsan u leh asiidhyada aan noolaha lahayn sida fosfooraska kulul.Si fudud ayaa loo alxan karaa oo loo farsamayn karaa iyadoo la raacayo habka wax-soo-saarka caadiga ah.Saxanka ss 904l aad buu u liidataa oo si fudud ayaa loo samayn karaa.Ku darida molybdenum iyo nitrogen waxay bixisaa qalab farsamayn oo awood badan waxaana laga yaabaa inay lagama maarmaan noqoto marka la barbardhigo heerka 304/304L darajooyinka.astm A240 nooca 904l ayaa iska caabin heer sare ah u leh biyaha badda diiran iyo weerarka chloride.Iska caabbinta sare ee ay ka soo horjeedo dildilaaca daxalka stress iyo waxa sabab u ah joogitaanka xaddi badan oo nikkel in ay ka kooban.Intaa waxaa dheer, ku darida naxaasta waxay kobcisaa caabbinta sulfuric acid iyo wakiilada kale ee yareynaya xaaladaha qallafsan iyo kuwa khafiifka ah.1.4539 qalabka saxanka, waxay bixisaa iska caabin oksaydh ah oo wanaagsan.Si kastaba ha ahaatee, xasiloonida qaab dhismeedka fasalkani wuxuu ku dumaa heerkul sare, gaar ahaan ka sarreeya 400 ° C.ASTM A240 UNS N08904 walxaha waxaa lagu xalin karaa kulaylka 1090 ilaa 1175 ° C iyadoo la raacayo habka qaboojinta degdega ah.Daaweynta kulaylka ayaa ku habboon in la adkeeyo.Codsiyada waaweyn ee xaashida 1.4539 waa qalabka sifaynta saliida, warshadaha saxarada iyo waraaqaha, dhirta xoqida gaaska, iwm.

Sharaxaada

Darajo Darajo Qayb kiimiko %
C Cr Ni Mn P S Mo Si Cu N Mid kale
904L N08904 ≤0.02 19.0-23.0 23.0-28.0 4.0-5.0 ≤0.045 ≤0.035 ≤1.00 0.1 Cu:1.0-2.0
sahayda cabbirka:
3 3*1000*2000 3*1219*2438 3*1500*3000 3*1500*6000
4 4*1000*2000 4*1219*2438 4*1500*3000 4*1500*6000
5 5*1000*2000 5*1219*2438 5*1500*3000 5*1500*6000
6 6*1000*2000 6*1219*2438 6*1500*3000 6*1500*6000
7 7*1000*2000 7*1219*2438 7*1500*3000 7*1500*6000
8 8*1000*2000 8*1219*2438 8*1500*3000 8*1500*6000
9 9*1000*2000 9*1219*2438 9*1500*3000 9*1500*6000
10 10*1000*2000 10*1219*2438 10*1500*3000 10*1500*6000
12 12*1000*2000 12*1219*2438 12*1500*3000 12*1500*6000
14 14*1000*2000 14*1219*2438 14*1500*3000 14*1500*6000
16 16*1000*2000 16*1219*2438 14*1500*3000 14*1500*6000
18 18*1000*2000 18*1219*2438 18*1500*3000 18*1500*6000
20 20*1000*2000 20*1219*2438 20*1500*3000 20*1500*6000

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