280 Brass Composition
UNS C82000yog cov hlau alloy uas muaj tooj liab ({{{0}}%), zinc (24-30}%), lead (0.2-0.8%), thiab tin ( 0.1%). Qhov no muaj pes tsawg leeg tsim cov hlau malleable nrog zoo heev machinability uas tuaj yeem tiv taus kub thiab tiv taus hnav.
|
Element
|
Feem pua
|
| Cov seem | 0 – 0.3 |
| Fe | 0 – 0.07 |
| Cu | 59 – 63 |
| Zn | 36.3 – 41 |
| Pb | 0 – 0.3 |
280 Brass Chemical Properties
C280 muaj qhov zoo tshaj plaws dezincification thiab atmospheric corrosion kuj vim nws cov ntsiab lus tooj liab siab. Nws kuj tseem tiv taus hydrochloric acid ntawm chav tsev kub siab txog li 5%. Txawm li cas los xij, nws tsis pom zoo siv rau hauv cov tshuaj caustic lossis ib puag ncig nrog cov sulfur compounds vim muaj kev pheej hmoo ntawm sulfide kev nyuaj siab corrosion cracking.
280 Brass C28000 Mechanical Properties
Vim nws txoj kev ua tau zoo thiab ductility,UNS C82000 tooj dagtuaj yeem tsim tau yooj yim rau hauv cov duab uas tsis tau poob lub zog lossis kev ncaj ncees. Nws muaj lub zog tensile ntawm 25-35 ksi (ib txhiab phaus ib square inch) thiab lub zog tawm los ntawm 20-30 ksi, ua rau nws haum rau cov khoom hnyav lossis kev siv uas yuav tsum tau muaj kev ntxhov siab ntau.
280 Brass Physical Properties
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawmtooj dag C28000yog nws lub peev xwm los tiv thaiv oxidation thiab hnav ntawm qhov kub thiab txias. Nws muaj qhov melting point ntawm 937 degree F - 1017 degree F (507 degree - 550 degree), nyob ntawm seb cov khoom siv alloying tam sim no; qhov no ua rau nws tsim nyog rau cov ntawv thov uas muaj cua sov los yog kev sib txhuam xws li cov kabmob lossis cov iav hauv cov tshuab hluav taws xob sab hauv.
280 Kev siv tooj dag
Vim nws cov khoom sib xyaw ua ke-malleability, corrosive kuj, kub tsis kamtooj 280feem ntau yog siv rau hauv cov ntawv thov uas muaj cov kua dej ntws xws li cov kav dej lossis cov twj tso kua mis; li qub; cov khoom siv hluav taws xob; automotive Cheebtsam; cov khoom zoo nkauj; fasteners; fittings; castings; gaskets; txiv ntseej & bolts thiab lwm yam. Nws kuj tseem siv tau rau cov kabmob ntawm qhov chaw vim nws cov coefficient ntawm kev sib txhuam uas tsis tshua muaj kev sib txhuam uas yuav pab txo qhov hnav ntawm qhov txav thaum lub sijhawm ua haujlwm.
280 Brass Corrosion Resistance
tooj dag 280 Alloymuaj kev tiv thaiv corrosion zoo heev ua tsaug rau nws cov ntsiab lus tooj liab siab. Nws tiv thaiv dezincification thaum raug dej los yog lwm yam corrosive thaum lub sij hawm zoo li feem ntau lwm yam alloys uas muaj zinc. Nws kuj tiv thaiv kev tawm tsam los ntawm cov organic acids xws li formic acid, acetic acid, thiab non-oxidizing mineral acids, suav nrog sulfuric acid nyob rau hauv ntau txog 15%.
280 Brass Heat Resistance
C28000yog ib qho ntawm cov khoom siv tau zoo tshaj plaws thiab kev cia siab rau cov khoom siv hauv kev lag luam - tshwj xeeb tshaj yog hais txog kev tiv thaiv tshav kub. Nrog lub melting point ntawm ze li ntawm 1700 degrees Fahrenheit, Brass 280 yog tshwj xeeb tsim los tuav nws lub zog nyob rau hauv huab cua kub, ua rau nws yog ib qho zoo tagnrho cov khoom siv rau kev tsim cov khoom siv high-pressure thiab qhov chaw raug mob hnyav. Nws lub peev xwm zoo tshaj plaws los tiv thaiv oxidation ua rau nws zoo meej alloy rau ntau qhov kev lag luam, nrog rau kev tsim hluav taws xob, kev tsim tshuaj lom neeg thiab kev ua zaub mov. Cov khoom zoo no ua rau Brass 280 yog cov khoom siv hluav taws xob zoo tshaj plaws nyob rau hauv kev ua lag luam niaj hnub no.
280 Brass Thaum tshav kub kub kho
Kev kho cua sov tuaj yeem siv rau ntawm tooj dag 280 yog tias xav tau los txhim kho nws cov tawv tawv lossis ductility tab sis nws yuav tsum tau ua tib zoo vim tias cov cua sov dhau los yuav ua rau muaj kev loj hlob ntawm cov qoob loo uas ua rau cov kab nrib pleb tshwm sim tom qab txias dua sai heev, uas tuaj yeem cuam tshuam cov qauv kev ncaj ncees. ntawm cov khoom yog tias tsis tau kuaj xyuas. Feem ntau hais lus txawm li cas los xij, tsis muaj kev kho cua sov yog qhov tsim nyog vim tias cov khoom twb muaj cov khoom siv zoo yam tsis muaj kev ua haujlwm ntxiv ua ntej siv.
