EN 10225 S355 Series ntawm cov qauv steel

S355 series hlau qib hauv qab EN 10225 qauv yog cov khoom siv hluav taws xob qis thiab cov qauv kev ncaj ncees, tshwj xeeb yog tsim rau cov qauv ntawm ntug dej.

S355 series suav nrog ntau qib kawm, txhua tus nrog cov yam ntxwv tshwj xeeb kom tau raws li kev sib txawv ntawm kev sib txawv ntawm kev sib txawv

S355G2+N: Cov qib kawm no yog paub txog nws cov kev xa khoom ib txwm muaj, uas pab tau nws cov khoom siv tshuab los ntawm cov tshuab ua kom huv. Nws feem ntau siv nyob rau hauv cov qauv uas yuav tsum tau muaj siab ntawm qhov chaw kub.

S355G3+N: Zoo ib yam li S355g 2+ n, qib no kuj tsis muaj kev cuam tshuam tsis zoo. Nws muab kev txhim kho thiab siv hauv cov ntawv thov uas yuav tsum muaj zog ntxiv.

S355G5+M: Tus cwj pwm los ntawm thermăchanical dov, cov qeb no muab kev sib npaug ntawm lub zog thiab ductility, ua rau nws haum rau cov txheej txheem nyuaj.

S355G6+M: Lwm cov qib kub ntawm thermiomanically dov, s355g {1}} m muaj cov qauv siv zog ua kom muaj zog uas muaj peev xwm siab yog qhov tseem ceeb.

S355G7+N: Cov qib kawm no yog tsim los rau huab cua tsis tshua muaj huab cua, nrog kev cuam tshuam zoo tsis kam mus rau}}} degree rau Arctic thiab sub-Arctic tawm tsam cov ntawv thov.

S355G8+N: Nrog nws cov kev xa khoom ib txwm muaj, qhov kev ua haujlwm qib no siab, haum rau cov qauv uas xav tau kev tiv thaiv uas xav tau kev tawm tsam rau hauv ib puag ncig dej kub tsawg.

S355G9+N: Cov qib kawm no yog paub rau nws cov kev ua kom zoo dua qub thiab feem ntau siv nyob rau hauv cov qauv tseem ceeb tshaj plaws uas kev pheej hmoo ntawm pob txha lov yog qhov kev txhawj xeeb.

S355G10+N: Muab ntau dua cov tawv nruj dua s355g {1}}}}}} yog siv nyob rau theem siab tshaj plaws uas muaj lub zog ntawm lub zog thiab ductility yuav tsum muaj.

• S355G2+N, S355G3+N: Cov qhab nia yog ib txwm muaj, uas txhais tau tias lawv yauv mus ua cov txheej txheem kev ua kom sov los txhim kho lawv cov khoom siv tshuab thiab tawv.
• S355G5+M, S355G6+M: Cov qhab nia yog thermiochaanically dov (tmcp), uas muab qhov sib npaug ntawm lub zog thiab ductility los ntawm kev tswj txias thaum lub sijhawm dov.
• S355G7+N, S355G8+N, S355G9+N, S355G10+N: Cov qib kawm tau kuj yog qhov qub, nrog rau kev nce qib qis, ua rau lawv haum rau Arctic thiab Sub-Arctic cov ntaub ntawv uas cov khoom siv tau muaj qhov tsis tshua muaj kub.

• Peple Zog: Txhua qib kawm muaj tsawg kawg lub zog muaj zog ntawm 355 MPa
• Lub zog tensile: feem ntau ranges los ntawm 470-630 mpa.
• Txiaj: ntau dua los yog sib npaug rau 14% rau ntau dua lossis sib npaug rau 42%, nyob ntawm qib thiab tuab.
• Kev Cuam Tshuam:

     S355G7+N: Yuav tsum muaj Charpy V-Motch cuam tshuam kev sim ntawm {1}} degree, nrog rau lub zog hluav taws xob tsawg kawg ntawm 50 joules, qhia txog nws txoj kev haum rau cov kev mob kub tsawg.

Lwm qib zoo li S355g 2+ n thiab s35g} m muaj qhov ntsuas kub ntau dua, xav txog lawv txoj kev siv tsis muaj chaw nyob tsawg.

• Carbon (c): Cov ntsiab lus carbon cov ntsiab lus feem ntau yuav txo los ntawm s355g {1}} n no n} n} n} Kuv muaj ib qho ntawm cov roj carbon qis.
• Phosphorus (p) thiab sulfur (s): Cov ntsiab lus no feem ntau txwv rau tsawg dua lossis sib npaug rau}}}}}} {5}} n, tab sis cov txwv Yog stricter hauv s355g {{{{{{} n thiab cov qib txuas ntxiv, nrog s355g} n}} n muaj qhov txwv tsawg dua lossis sib npaug rau 0.015%.
• Chromium (CR), Molybdenum (MO), thiab Nickel (NI): Cov kab lus zoo li chromium, molybdenum, thiab npib tsib xee nyob rau hauv cov nyiaj sib txawv, nrog qee qib kev txwv me me, uas tuaj yeem cuam tshuam cov khoom muaj zog me ntsis thiab muaj zog.
• Nitrogen (n): Cov ntsiab lus nitrogen yog tswj tau nyob rau hauv cov qib ib txwm muaj (+ n)} {} {} {{8} {8} {8}} n muaj qhov txwv siab tshaj plaws ntawm tsawg dua lossis sib npaug rau 0. 015%, uas tuaj yeem txhim kho lub zog.
• Aluminium (AL): Txhuas tam sim no nyob rau hauv txhua qib rau qee qhov, feem ntau nrog cov ntsiab lus tsawg kawg nkaus ntawm}. 015%
• Niobium (nb), titanium (ti), thiab vanadium (v): Cov micro no cov ntsiab siv hauv cov khoom me me kom tswj cov qoob loo me me thiab txhim kho lub zog kom tsis muaj zog. Lawv cov kev txwv sib txawv sib txawv me ntsis ntawm qib.

Cov tshuaj lom neeg cov tshuaj sib txawv ntawm S355 cov qib txuj ci yog qhov tsis txaus tab sis tseem ceeb rau lawv cov ntawv thov npaj. Txo cov roj teeb thiab qib siab dua cov ntsiab lus hauv qee cov qib yuav ua rau muaj zog dua thiab tawv, uas yog qhov tseem ceeb rau kev tawm tsam ntug dej thiab lwm qhov kev xav tau ib puag ncig.

• S355G2+N, S355G3+N: Siv rau hauv cov qauv txheej txheem dav dav uas muaj lub zog siab thiab qhov kub qhov kub qhov kub yuav tsum muaj.
• S355G5+M, S355G6+M: Siv kev siv cov haujlwm hnyav-ua haujlwm uas ua kom muaj zog thiab tsim kho tau.
• S355G7+N, S355G8+N, S355G9+N, S355G10+N: Tshwj xeeb tsim rau kev tawm tsam ntawm thaj chaw ua haujlwm thiab cov tubrog nkoj engineering uas muaj lub zog siab thiab cov khoom kub qis yog qhov tseem ceeb.

Txhua qib S355 yog tsim nrog cov veldability zoo heev thiab corrosion zoo, uas yog qhov tseem ceeb rau cov ntawv thov tawm tsam.

Lub ntsiab sib txawv ntawm cov qhab nia no yog lawv cov kev xa tawm (li qub lossis thermomecharanically dov), lawv cov kev cuam tshuam hluav taws xob yuav tsum muaj ntawm ntau qhov kub, thiab lawv cov tshuaj lom neeg. Cov qhab nia kawm tau zoo (+ n) tau txhim kho kev nruj dua vim yog cov qib ib txwm muaj, thaum cov qhab nia kub (+ m) muaj kev sib npaug ntawm lub zog thiab ductility. Txoj kev xaiv tshwj xeeb ntawm qib yog nyob ntawm daim ntawv thov cov cai rau lub zog, kev ua kom muaj zog, thiab kev pabcuam kub.