SMA400BW thiab ASTM A588 Qib B yog ob qib siv Corten Steel, ntseeg siab rau cov haujlwm sab nraum zoov thoob ntiaj teb. Txawm li cas los xij cov pab pawg ua haujlwm feem ntau nyuaj los xaiv ntawm lawv- ib qho tau lees paub rau Nyij Pooj JIS G 3114: 2022, lwm qhov rau Asmeskas tus qauv ASTM A588 / A588M. Thaum ob qho tib si muaj kev tiv thaiv zoo heev atmospheric corrosion, lawv qhov sib txawv me me hauv kev sib xyaw, cov khoom siv kho tshuab, thiab kev tsim qauv ua rau ib qho zoo dua rau cov haujlwm tshwj xeeb. Kev nkag siab txog cov kev sib txawv no yog qhov tseem ceeb ntawm kev xaiv cov qib zoo, zam dhau -cov lus qhia tshwj xeeb, thiab ua kom muaj kev ua haujlwm ntev -.
Hauv qab no yog qhov pom tseeb, sib piv sib piv ntawm SMA400BW thiab ASTM A588 Qib B, hauv paus hauv lawv cov qauv, nrog rau cov lus qhia siv tau los pab koj xaiv txoj cai.
Kev sib piv Core: Kev sib xyaw & cov cuab yeej cuab tam
Qhov sib txawv loj tshaj plaws nyob rau hauv lawv cov pleev xim hlau thiab cov khoom siv kho tshuab-ob leeg ua raws li lawv cov qauv hauv ib txwm muaj, tab sis haum rau cov kev xav tau hauv cheeb tsam sib txawv:
Tshuaj muaj pes tsawg leeg:
SMA400BW (JIS G 3114: 2022): Muaj Tsawg dua lossis sib npaug ntawm 0.18% carbon, 0.45–0.75% chromium, 0.30–0.90% tooj liab, thiab 0.05–0.30% npib tsib xee, nrog nruj impurity txwv tsis pub tshaj 5 los yog sib npaug li 0. 0.035%). Nws tsis muaj vanadium xav tau.
ASTM A588 Qib B: Muaj cov pa roj carbon ntau dua me ntsis (tsawg dua lossis sib npaug li 0.20%), 0.30-0.50% chromium, 0.20-0.50% tooj liab, 0.25-0.50% nickel, thiab 0.01-0.10% vanadium impurity 0%, nrog xoob 0. S Tsawg dua lossis sib npaug li 0.05%).
Mechanical Properties:
Yield Strength: Ob leeg muaj qhov tsawg kawg nkaus ntawm 345 MPa rau cov seem thinner (tsawg dua lossis sib npaug rau 16 hli rau SMA400BW, Tsawg dua lossis sib npaug li 100 hli rau A588 Qib B).
Tensile Strength: SMA400BW thaj tsam ntawm 400-540 MPa, thaum A588 Qib B muaj qhov tsawg kawg nkaus ntawm 485 MPa (tsis muaj kev txwv siab).
Elongation: SMA400BW yuav tsum muaj ntau dua lossis sib npaug rau 23%, me ntsis siab dua A588 Qib B's Ntau dua lossis sib npaug li 21% (rau 200mm cov qauv).
Corrosion Resistance: Lawv ua li cas hauv ib puag ncig tiag
Ob qib tsim kev tiv thaiv patinas, tab sis lawv qhov kev ua tau zoo sib txawv me ntsis los ntawm ib puag ncig- tsav los ntawm lawv cov alloy sib txawv:
SMA400BW: Nws cov tooj liab ntau dua (0.30–0.90%) thiab tswj cov ntsiab lus nickel txhim kho patina stability, ua rau nws zoo tagnrho rau me me - rau - muaj kuab paug nruab nrab thiab qis - raug cov ntug hiav txwv dej. Txhua xyoo corrosion tus nqi yog 0.01-0.05 hli / xyoo nyob rau hauv qhov chaw nyob deb nroog / suburban.
ASTM A588 Qib B: Tsim los rau North American huab cua, nws ua tau raws li ASTM G101 corrosion resistance index (Ntau dua los yog sib npaug rau 6.0) thiab ua tau zoo nyob rau hauv nroog, nyob deb nroog, thiab lub teeb ntug ntug dej hiav txwv ib puag ncig. Nws cov ntsiab lus vanadium boosts lub zog tab sis tsis zoo txhim kho corrosion kuj piv rau SMA400BW.
Phau Ntawv Qhia Xaiv Tswv Yim (Qhov Tseem Ceeb Tshaj Plaws)
Xaiv cov qib raws li koj qhov project qhov chaw, cov cai, thiab cov kev xav tau ntawm kev ua haujlwm:
Xaiv SMA400BW yog:
Koj qhov project ua raws li JIS cov qauv (feem ntau nyob rau hauv Asia, cov haujlwm thoob ntiaj teb nrog Japanese tsim kev cuam tshuam).
Koj xav tau zoo dua patina stability nyob rau hauv cov av noo los yog lub teeb muaj ib puag ncig.
Fabrication yooj yooj yim yog qhov tseem ceeb- nws cov elongation siab dua ua rau nws yooj yim rau txias rau hauv cov duab nyuaj.
Xaiv ASTM A588 Qib B yog:
Koj qhov project ua raws li cov qauv ASTM (ntau ntau hauv North America, cov haujlwm thoob ntiaj teb nrog US / Canadian tsim cuam tshuam).
Koj xav tau lub zog tensile siab dua (min 485 MPa) rau hnyav dua - cov qauv thauj khoom (piv txwv li, cov choj loj, cov cav ntoo hnyav).
Koj tab tom nrhiav cov ntaub ntawv hauv zos hauv North America (feem ntau tus nqi ntau dua - zoo dua li kev xa tawm SMA400BW).
Qhov Tseem Ceeb Zoo sib xws rau Ceeb Toom
Txawm hais tias lawv qhov sib txawv, ob qib sib qhia cov txiaj ntsig tseem ceeb uas ua rau lawv ntseeg tau Corten Steel xaiv:
Kev saib xyuas tsawg kawg nkaus: Ob qho tib si tiv thaiv patinas, tshem tawm qhov xav tau ntau zaus repainting.
Zoo weldability: Ob leeg ua haujlwm nrog cov txheej txheem vuam (SMAW, GMAW) uas tsis muaj kev tshwj xeeb ua ntej- cua sov rau feem ntau thicknesses.
Lub neej ua haujlwm ntev: 25-35 xyoo nyob rau hauv ib puag ncig me me, ntev dua li cov pa roj carbon zoo tib yam.
Hauv luv luv, SMA400BW thiab ASTM A588 Qib B yog ob qho tib si siab - qib Corten Steel, tab sis lawv cov qauv thiab cov khoom sib xyaw ua kom haum rau cov cheeb tsam sib txawv thiab xav tau. Los ntawm kev ua raws li koj qhov kev xaiv nrog koj qhov project tus qauv tsim thiab ib puag ncig, koj yuav ua kom pom kev ua tau zoo thiab ntev - nqi.
