S355 YOGyog cov txheej txheem khoom siv uas belongs rau cov hlau tsis tshua muaj hlau thiab feem ntau yog siv rau kev tsim cov khoom txias-tsim thiab kub-tsim qauv hollow seem.Cov qauv hlau no yog ua raws li European tus qauv EN 10219 thiab tshwj xeeb tshaj yog tsim rau kev tsim cov welded txias-tsim qauv hollow seem.
S355 YOGtuaj yeem siv rau kev tsim khoom ntawm ntau hom raj, nrog rau cov kav hlau welded (SSAW), seamless raj (SMLS), thiab ncaj seam welded raj (ERW lossis LSAW).
Lub ntsiab lus ntawm S355JOH
"S" sawv cev rau cov qauv hlau;"355" stands rau cov khoom uas muaj qhov tsawg kawg nkaus yield zog ntawm 355 MPa, uas ua kom muaj kev ruaj ntseg zoo;"
J0H" yog hais txog qhov txias-tsim hollow seem nrog lub zog cuam tshuam ntawm 27 J ntawm qhov ntsuas kub ntawm 0 ° C.
S355JOH tshuaj muaj pes tsawg leeg
Cov pa roj carbon (C): 0.20% max.
Silicon (Si): 0.55% max.
Manganese (Mn): siab tshaj 1.60%
Phosphorus (P): 0.035% max.
Sulfur (S): 0.035% max.
Nitrogen (N): 0.009% max.
Aluminium (Al): 0.020% yam tsawg kawg nkaus (qhov kev xav tau no tsis siv yog tias cov hlau muaj cov khoom siv nitrogen txaus)
Thov nco ntsoov tias cov tshuaj muaj pes tsawg leeg yuav txawv nyob ntawm cov chaw tsim khoom thiab cov khoom tshwj xeeb.Tsis tas li ntawd, lwm yam alloying ntsiab lus, xws li vanadium, npib tsib xee, tooj liab, thiab lwm yam, tej zaum yuav raug ntxiv thaum lub sij hawm tsim cov txheej txheem txhawm rau txhim kho cov khoom tshwj xeeb ntawm cov hlau, tab sis tus nqi thiab hom ntawm cov ntsiab lus ntxiv yuav tsum tau ua raws li cov txheej txheem tsim khoom. cov qauv tsim nyog.
S355JOH Mechanical Properties
Yam tsawg kawg nkaus yield zog tsawg kawg yog 355 MPa;
Tensile lub zog muaj nuj nqis 510 MPa rau 680 MPa;
Nws qhov tsawg kawg nkaus elongation feem ntau yuav tsum muaj ntau tshaj 20 feem pua;
Nws yuav tsum raug sau tseg tias qhov elongation tuaj yeem cuam tshuam los ntawm cov qauv loj, cov duab, thiab cov kev xeem, yog li hauv cov ntawv thov engineering tshwj xeeb, nws yuav tsum tau xa mus rau cov qauv ntxaws lossis kos nrog cov khoom muag kom tau txais cov ntaub ntawv raug.
S355JOH Dimensions thiab Tolerances
Tolerance ntawm Outer Diameter (D)
Rau sab nraud diameters tsis ntau dua 168.3mm, qhov kam rau ua yog ± 1% lossis ± 0.5mm, qhov twg yog qhov ntau dua.
Rau sab nraud txoj kab uas hla ntau dua 168.3mm, qhov kam rau ua yog ± 1%.
Phab ntsa Thickness (T) kam rau ua
Phab ntsa thickness kam rau ua raws li qhov tshwj xeeb loj thiab phab ntsa thickness qib (raws li qhia nyob rau hauv lub rooj), feem ntau yog nyob rau hauv lub ± 10% los yog li ntawd, rau meej tswj ntawm phab ntsa thickness daim ntaub ntawv, tej zaum yuav xav tau ib tug tshwj xeeb kev txiav txim.
Tolerance ntawm Length
Qhov kam rau ua rau tus qauv ntev (L) yog -0 / + 50mm.
Rau qhov ntev ntev, qhov kam rau ua feem ntau yog ± 50mm.
qhov ntev tshwj xeeb lossis qhov ntev yuav tsum muaj kev zam nruj dua, uas yuav tsum tau txiav txim siab hauv kev sab laj nrog cov chaw tsim khoom thaum lub sijhawm xaj.
Ntxiv Tolerances rau Square thiab Rectangular Sections
Square thiab duab plaub seem muaj qhov sab nraud lub kaum sab xis ntawm 2T, qhov twg T yog phab ntsa tuab.
Tolerance ntawm Diagonal Difference
Ntawd yog, tus nqi siab tshaj plaws ntawm qhov sib txawv ntawm qhov ntev ntawm ob kab pheeb ces kaum ntawm square thiab duab plaub, feem ntau tsis ntau tshaj 0.8% ntawm tag nrho qhov ntev.
Tolerance ntawm Txoj Cai Angle thiab Twisting Degree
Tolerances rau straightness (piv txwv li, lub verticality ntawm ib seem) thiab twist (ie, flatness ntawm ib seem) kuj tau teev nyob rau hauv kom meej nyob rau hauv tus qauv kom paub meej cov qauv thiab tag nrho cov tsos.
Nws yog vim peb mob siab rau kev ua tau zoo hauv txhua qhov kev nthuav dav ntau lawm, ua ke nrog peb cov kev paub tob thiab kev paub hauv kev lag luam uas peb muaj peev xwm ua tiav txoj haujlwm tseem ceeb hauv kev tsim khoom.S355 YOGcev steel.
Peb nkag siab tias txhua qhov project muaj cov kev cai nruj ntawm kev ua haujlwm ntawm cov ntaub ntawv, yog li ntawd, peb tsis tsuas yog muab cov khoom lag luam tab sis kuj muab kev daws teeb meem rau peb cov neeg siv khoom.Yog tias koj muaj kev xav tau rau peb cov khoom lossis kev pabcuam lossis muaj lwm yam lus nug, thov koj xav tiv tauj peb.Peb pab pawg muaj cov kws tshaj lij uas tau npaj siab los muab cov ntaub ntawv ntxaws ntxaws rau koj, kev daws teeb meem, thiab kev txhawb nqa kev tshaj lij.
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Post lub sij hawm: Feb-26-2024