272 Brass yog dab tsi?
ASTM B36yog ib qho tseem ceeb ntawm cov tooj dag uas tau siv dav hauv kev tsim khoom thiab engineering sectors. Feem ntau ua los ntawm zinc, tooj liab, thiab tin,Brass alloy 272muab ntau yam txiaj ntsig zoo rau cov neeg tsim khoom lag luam. Nws muaj superior tiv thaiv corrosion thiab puas, yog heev malleable rau ntau yam kev siv thiab cov txheej txheem, thiab nws lub zog tseem nyob rau hauv lub sij hawm. Nyob rau sab saum toj ntawm qhov ntawd, Brass 272 yog qhov pheej yig dua li lwm cov hlau alloys. Qhov no ua rau nws zoo tagnrho rau kev lag luam nrhiav txoj hauv kev los txo cov nqi thaum tseem txhawb nqa cov qauv zoo. Yog li ntawd, nws tsis xav tsis thoob vim li cas tooj dag 272 tau dhau los ua cov khoom tseem ceeb hauv kev tsim cov khoom ntawm txhua daim duab thiab qhov ntau thiab tsawg hauv ntau qhov kev lag luam thoob ntiaj teb.
Daim ntawv twg yog 272 Brass Muaj nyob ntawm Piping Mart?
Brass 272 Tubing
Brass 272 Bolts
Brass 272 Fasteners
Brass 272 Ceev
Brass 272 Screw
Brass 272 Washer
Brass 272 Stud Bolts
Brass 272 Coil
Brass 272 Foil
272 Brass Composition
tooj 272yog alpha-beta tooj dag uas muaj 72% tooj liab thiab 28% zinc. Nws tseem muaj cov lej ntawm cov hlau lead (<0.2%), iron (<0.3%), arsenic (<0.01%), manganese (<0.3%), and phosphorus (<0.04%). Together these elements give it superior malleability compared to other alloys with similar compositions, such as 70/30 brass or 60/40 brass.
| Cov ntsiab lus | ||||
|---|---|---|---|---|
| Cu(1) | Pb | Zn | Fe | |
| (1) Cu + Sum of Named Elements 99.7% min. | ||||
| Min (%) | 62.0 | |||
| Max (%) | 65.0 | 0.07 | Rem | 0.07 |
UNS C27200 Brass 272 Chemical Properties
ASTM B36 tooj dagmuaj kev tiv thaiv corrosion zoo heev thaum raug rau ntau hom corrosive ib puag ncig xws li dej ntsev, sulfuric acid, hydrochloric acid, thiab lwm yam, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau ntau daim ntawv thov uas muaj kev tiv thaiv corrosion yog qhov tseem ceeb. Cov hlau tseem muaj hluav taws xob zoo, ua rau nws muaj txiaj ntsig zoo rau kev siv hluav taws xob thaiv.
Brass 272 Lub cev muaj zog
C27200 tooj dagyog ib qho alloy ntawm tooj liab thiab zinc nrog lub cev zoo heev. Nws muaj hluav taws xob conductivity, corrosion kuj, txias formability, thiab ib tug nruab nrab mus rau ib tug me ntsis yellowish tint. Tshwj xeeb, nws muab kev ua haujlwm zoo tshaj plaws ntawm kev ua kom sov, tso cai rau nws siv rau ntau yam kev siv thoob plaws ntau qhov kev lag luam. Los ntawm kev sib txuas cov khoom ntawm tooj liab thiab zinc ua ke rau hauv ib qho alloy, Brass 272 muab ob qho tib si lub zog thiab kav ntev thaum tseem tshuav nqi. Nws txoj kev ua haujlwm ua rau nws muaj peev xwm ua tiav cov qauv tsim sib txawv hauv cov khoom uas tau txais txiaj ntsig los ntawm nws cov yam ntxwv zoo dua. Yog li ntawd, engineers thiab designers feem ntau qhia cov alloy no rau cov kev siv nyuaj uas yuav tsum tau superior kev ua tau zoo ua ke nrog kev them taus.
| Melting Point – Liquidus degree F | 1680 |
|---|---|
| Densitylb/cu in. ntawm 68 degree F | 0.305 |
| Specific Gravity | 8.44 |
| Hluav taws xob conductivity% IACS ntawm 68 degree F | 27.6 |
| Thermal ConductivityBtu / sq ft / ft hr / degree F ntawm 68 degree F | 67 |
| Coefficient ntawm Thermal Expansion 68-57210 rau -6 fais fab ib degree F (68 - 572 degree F) | 11.4 |
| Tshwj xeeb Thaum tshav kub kub CapacityBtu / lb / degree F ntawm 68 degree F | 0.09 |
| Modulus ntawm Elasticity hauv Tensionksi | 15000 |
| Modulus ntawm Rigidityksi | 5600 |
272 Brass Mechanical Properties
Cov khoom siv dag zog ntawm tooj dag 272 nyob ntawm qhov kev xaiv kho cua sov siv thaum ua haujlwm. Cov kev kho cua sov uas feem ntau siv yog kev ntxhov siab (annealing) thiab kev laus (aging). Kev ntxhov siab ua rau cov khoom siv ntau dua, thaum laus nce hardness thiab lub zog tsis muaj kev cuam tshuam ductility lossis malleability ntau dhau. Lub hnub nyoog hardening tuaj yeem ua tiav ntawm qhov kub ntawm 400 degree F txog 600 degree F (204 degree txog 315 degree). Machining yog ua tau ntawm Brass 272 nrog cov cuab yeej txheem, tab sis kev txiav ceev yuav tsum tau ceev kom qis kom tsis txhob ua kom lub ntsej muag tiav lossis ua rau hnav ntau dhau ntawm cov cuab yeej lawv tus kheej.
| Daim ntawv | Kub | Temper Code | Tensile zog (ksi) |
YS-0.5% Ext (ksi) |
Elongation (%) |
Rockwell F nplai | Tshooj Loj (hauv) |
|---|---|---|---|---|---|---|---|
| * Ntsuas ntawm chav tsev kub, 68 degree F (20 degree). | |||||||
| Tube | Hard Drawn | H80 | 74 Typ | 55 Typ | 10 Typ | 80 Typ | 0.065 |
| Nominal Grain Loj 0.025 mm | OS 025 | 56 Typ | 23 Typ | 50 Typ | 82 Typ | 0.065 | |
