Xaiv txoj cai Corten Steel rau cov ncej sab nraum zoov-txawm tias siv hluav taws xob, kev sib kis, lossis txoj kev teeb pom kev zoo -bos mus rau ib lo lus nug tseem ceeb: qib twg sib npaug zog, kav ntev, thiab tus nqi rau koj tus ncej tsim tshwj xeeb? ASTM A871 Qib 60 thiab ASTM A242 Hom 1 yog ob qho tib si kev ntseeg siab ntawm huab cua-cov qauv hlau tsis muaj zog, tab sis lawv tau tsim kho nrog qhov tseem ceeb sib txawv. Ib qho yog lub hom phiaj- ua rau daim ntawv thov tubular ncej, thaum lwm qhov ua tau zoo hauv cov teeb meem sib dua, xav tau tsawg dua. Cia peb tawg lawv qhov sib txawv los txiav txim siab seb qhov twg zoo dua rau koj qhov project ncej sab nraum zoov.
Tsom ntsoov rau Sab Nraud Ncej: Cov Ntsiab Lus Yuav Tsum Ua Li Cas
Cov ncej sab nraum zoov xav tau peb yam uas tsis yog -kev sib tham: muaj zog txaus los txhawb nqa cov khoom thauj (xaim, teeb, cua), corrosion tsis kam rau lub sijhawm ntev- siv tsis tau pleev xim, thiab tsim kom tau dov rau hauv cov duab tubular. Ob qib ua tau raws li cov qauv Corten Steel, tab sis lawv qhov kev ua tau zoo hauv peb qhov chaw ua rau lawv sib nrug -tshwj xeeb tshaj yog rau cov ncej ntawm qhov siab sib txawv thiab qhov xav tau thauj khoom.
Sab-los ntawm-Sab: Lawv Ua Li Cas rau Cov Ncej Sab Nraud
Tsis nco qab cov kev sib piv dav dav-Ntawm no yog yuav ua li cas txhua qib sib tw rau cov kev xav tau tshwj xeeb ntawm cov ncej sab nraum zoov, raws li cov qauv ASTM thiab tiag tiag- ntiaj teb siv:
Mechanical Strength (Qhov tseem ceeb rau ncej Loads)ASTM A871 Qib 60: Yam tsawg kawg nkaus lub zog ntawm 415 MPa (60 ksi), tensile zog 485-620 MPa. Nws lub zog zoo ib yam thoob plaws thicknesses (txog 100mm) yooj yim txhawb nruab nrab - mus rau - hnyav loads, ua rau nws zoo tagnrho rau siab utility los yog kis ncej. ASTM A242 Hom 1: Yam tsawg kawg nkaus yield zog ntawm 345 MPa (50 ksi) rau nyias seem (tsawg dua los yog sib npaug rau 20 hli), xa me nyuam rov mus rau 290 MPa rau cov phaj tuab. Nws lub zog qis dua txwv nws rau luv luv, sib zog ncej (piv txwv li, lub teeb me me) nrog qhov hnyav tsawg.
Thickness & Tubular Formability: ASTM A871 Qib 60: Muab los ua phaj (txog 100mm tuab), tsim tshwj xeeb rau dov rau hauv cov qauv tubular- zoo meej rau cov ncej uas xav tau tuab los txhawb qhov siab thiab thauj khoom. ASTM A242 Hom 1: Muaj nyob rau hauv daim hlau nyias (6.35-19mm), haum rau lub teeb tubular duab tab sis tsis tuab txaus rau siab, hnyav ncej. Nws feem ntau yog siv rau cov ntawv thov me me, qis -load ncej.
Corrosion Resistance (Sab nraum zoov Ntev): Ob leeg ua tau raws li ASTM G101 corrosion resistance index (Ntau dua los yog sib npaug rau 6.0) thiab tsim patinas tiv thaiv. A242 Hom 1 muaj kev tiv thaiv zoo heev nyob rau hauv qhov chaw nyob deb nroog / nroog, tab sis A871 Qib 60's alloy sib xyaw yog ua kom zoo rau lub sijhawm ntev - raug cov ncej siab hauv ntau qhov kev nyab xeeb.
Qib twg los xaiv rau koj tus ncej sab nraum zoov?
Cov lus teb nyob ntawm koj tus ncej qhov siab, load, thiab ib puag ncig-tsis dhau- qhia, tsis muaj kev ua haujlwm tsis zoo:
Xaiv ASTM A871 Qib 60 Yog: Koj tab tom tsim nruab nrab-rau- cov ncej siab sab nraum zoov (piv txwv li, cov ncej hluav taws xob, cov kav xa hluav taws xob, cov phiaj xwm loj) uas xav tau kev txhawb nqa hnyav, cua txias, lossis xav tau cov ntu tuab (tshaj 20mm). Nws yog tus qauv kev lag luam rau tubular ncej qhov twg lub zog thiab ntev - lub sij hawm durability (25-50 xyoo) tsis yog - sib tham.
Xaiv ASTM A242 Hom 1 Yog: Koj ua hauj lwm nrog luv luv, lub teeb sab nraum zoov ncej (xws li, me me txoj kev teeb, vaj ncej) nrog tsawg load thiab nyias seem (tsawg tshaj los yog sib npaug zos rau 19mm). Nws yog tus nqi -zoo rau qis- thov daim ntawv thov tab sis tsis haum rau cov ncej siab lossis hnyav.
Tswv yim Pitfall kom zam
Siv A242 Hom 1 rau siab, thauj khoom -cov kab hluav taws xob siv hluav taws xob muaj kev pheej hmoo ntawm kev ua haujlwm tsis zoo- nws lub zog qis qis tuaj yeem tswj tsis tau cua thiab qhov hnyav. Hloov pauv, siv A871 Qib 60 rau me me, lub teeb ncej nkim nyiaj ntawm qhov tsis muaj zog. Muab cov qib rau koj tus ncej qhov siab thiab thauj khoom, thiab koj yuav tau txais txiaj ntsig zoo tshaj plaws thiab kev ua haujlwm zoo.
Hauv luv luv, ASTM A871 Qib 60 yog qhov zoo dua rau feem ntau cov ncej sab nraum zoov-tshwj xeeb nruab nrab-rau- siab, thauj khoom-cov kabmob-thaum A242 Hom 1 yog txwv rau cov ncej me me. Kev xaiv raws li koj tus ncej cov kev xav tau tshwj xeeb ua kom muaj kev nyab xeeb, kav ntev, thiab tus nqi{10}} ua haujlwm tau zoo.
