China 304 316 Qabow duuban oo ahama birta xariijin gariiradda BA dhame saxan bir aan lahayn Soo saaraha iyo Iibiyaha | Ruiyi
Nooca 304 daawaha birta aan dahsoon waa qayb ka mid ah austenitic birta ah ee taxanaha T-300. Waxay leedahay chromium heerka ugu sarreeya ee 18%, nikkel 8%, iyo carbon at 0.08%. Waxaa sidaas lagu qeexay sida nikkel iyo chromium-ku salaysan austenitic alloy.
Birta aan Lahayn 304Sheetku waxa uu ka samaysan yahay bir aan lahayn austenitic kaas oo ka kooban 18% chromium iyo 8% nikkel ss304 saxan bir ah waa darajada loogu isticmaalka badan yahay dhammaan birta aan-xawaalka ahayn ee adduunka. Waraaqaha ss304 ee aan lahayn waa kuwo adag, khafiif ah u adkaysta daxalka waxayna leeyihiin codsiyo warshado kala duwan.
Fasalka ss316 waa fasalka austenitic kaas oo ah kan labaad ee kaliya ilaa 304 isticmaalka ganacsiga. 316 birta aan daxalka lahayn waxaa ku jira dheeri ah molybdenum taasoo siinaysa iska caabbinta daxalka. Tani waxay si gaar ah ugu muuqataa godadka iyo daxalka dillaaca ee deegaanka chloride. Si kastaba ha ahaatee, kororka maadada nikkelka iyo ku darida molybdenum ee 316 ayaa ka dhigaysa mid ka qaalisan 304. Celcelis ahaan, qiimaha316 bir ah40% ka sarreeya qiimaha ss304 .
316L birta aan la taaban karin waxay ku dhowdahay inay la mid tahay 316. Kala duwanaanshiyaha kaliya ayaa ah waxa ku jira kaarboonka. Kaarboonka hoose ee 316L ayaa siiya xitaa iska caabbinta daxalka ka fiican 316. 316L uma baahna soo saarista alxanka kadib.
birta aan-dhalatada lahayn alaabadu waa mid ka mid ah alaabta ceeriin ee ugu caansan dhismaha iyo wax soo saarka. Iyada oo ay ugu wacan tahay sifooyinkeeda gaarka ah ee makaanikada iyo jirka, gariiradda birta ah ayaa si weyn loogu isticmaalay soo saarista qalabka jikada iyo qalabka warshadaha. Waa kuwa adag, adkaysi u leh daxalka, miisaankoodu yar yahay waxayna u baahan yihiin dayactir hoose. Intaa waxaa dheer, waxaan taageernaa habeynta badeecad kasta. Warshadaha (gaar ahaan wax soo saarka), darajooyin kala duwan ee gariiradda birta ah ayaa laga heli karaa, sida 316, 316L, 304L, 304, 410S, 321, 201, 303, 304n, 2507, 2304, iwm
Xaashiyaha birta ah ama gariiradda ayaa si weyn loogu isticmaalaa heerkulka sare iyo warshadaha korontada, qalabka caafimaadka, dhismaha, kimistari, warshadaha cuntada, beeraha, iyo qaybaha markabka.
Birta aan lahayn waxay sidoo kale khuseysaa baakadaha cuntada iyo cabitaanka, sahayda jikada, tareenada, diyaaradaha, suumanka qaada, baabuurta, boolasha, lowska, ilo, iyo mesh-ka iwm.
Dhumucda:0.3-260
Baaxadda: 1000,1219,1500,2000,2500,3000, iwm.
Dhererka: 1000,1500,2438,3000,5800,6000,9000,12000, iwm.
Alaabooyinka waa la habeyn karaa
Dusha sare: BA,2B,NO.1,NO.4,4K,HL,8K
Heerka:ASTM,AISI,JIS,GB,DIN,EN
Shuruudaha kiimikada caadiga ah | ||||
---|---|---|---|---|
304 | 304L | 316/316L | 321 | |
Kaarboon, ugu badnaan % | 0.07 | 0.03 | 0.03 | 0.08 |
Manganese, ugu badnaan % | 2 | 2 | 2 | 2 |
Fosfooraska, ugu badnaan % | 0.045 | 0.045 | 0.045 | 0.045 |
Baaruud, ugu badnaan % | 0.03 | 0.03 | 0.03 | 0.03 |
Silicon Max | 0.75 | 0.75 | 0.75 | 0.75 |
Kala duwanaanshaha Chromium | 17.5-19.5 | 17.5-19.5 | 16-18 | 17-19 |
Kala duwanaanshaha Nickel | 8.0-10.5 | 80.-12 | 10-14 | 9-12 |
Nitrogen Max | 0.1 | 0.1 | 0.1 | 0.1 |
Guryaha Makaanikada | ||||
Min. Tensile | 75 ksi | 70 ksi | 75 ksi | 75 ksi |
Wax-soosaarka Min | 30 ksi | 25 ksi | 25 ksi | 30 ksi |
Kordhinta Min | 40% | 40% | 40% | 40% |
Hardness Max | 95 HRB | 95 HRB | 95 HRB | 95 HRB |