Q345q steel yog siab -lub zog qis- alloy structural steel tshwj xeeb tsim los rau kev tsim kho choj, muab qhov sib npaug ntawm kev ua haujlwm, weldability, thiab tus nqi- ua tau zoo. Ntawm no yog ib qho kev qhia dav dav uas haum rau kev tsim choj engineering:

Material Classification thiab Standards

Q345q poobGB/T 714-2015(Suav tus qauv rau choj cov qauv hlau), nrog "Q" qhia tawm lub zog, "345" qhia qhov tsawg kawg nkaus lub zog ntawm 345 MPa (rau thickness Tsawg dua lossis sib npaug li 16 hli), thiab "q" qhia txog nws tus choj- tshwj xeeb daim ntawv thov. Nws yog sib npaug rauASTM A709 Qib 50nyob rau hauv cov qauv thoob ntiaj teb, ua rau nws tsim nyog rau cov phiaj xwm choj thoob ntiaj teb.

 

Mechanical Properties

Q345q qhov kev ua tau zoo yog optimized rau dynamic loading thiab hnyav ib puag ncig:

 

Khoom	Yam khoom muaj nqis	Test Standard
Yield zog (Rp0.2)	Ntau dua lossis sib npaug li 345 MPa (tsawg dua lossis sib npaug li 16 hli thickness)	GB/T 228.1-2010
Tensile zog (Rm)	490-630 MPa	GB/T 228.1-2010
Elongation (A50)	Ntau dua lossis sib npaug li 21%	GB/T 228.1-2010
Impact Toughness (KV2)	Ntau dua lossis sib npaug ntawm 20 J ntawm 0℃(Qib C)	GB/T 229-2020
Kev qaug zog	Ntau tshaj lossis sib npaug rau 180 MPa (ntawm 2 × 10⁶ cycles)	ASTM E466 (sib npaug)

 

 

 

 

 

 

 

Cov yam ntxwv tseem ceeb rau kev siv choj

Siab zog & nruj: Txhawb nqa hnyav tsheb thauj khoom thiab ncua ntev thaum txo cov khoom siv.

Fatigue Resistance: Engineered los tiv thaiv cyclic loading los ntawm tsheb thiab cua, tseem ceeb heev rau choj ntev.

Weldability: Tsawg carbon sib npaug (CEV Tsawg dua lossis sib npaug li 0.43%) tso cai rau kev siv vuam zoo nrog qis - hydrogen electrodes (xws li E5015-G) tom qab preheating rau 100-150℃rau cov ntu tuab .

Txias-Weather Performance: Qib Q345qE ua tiav ntau dua lossis sib npaug ntawm 27 J cuam tshuam lub zog ntawm -40 degree, haum rau cov cheeb tsam khov.

Corrosion Resistance: Thaum tus qauv Q345q tsis muaj cov ntsiab lus huab cua, nws tuaj yeem raug coated lossis ua ke nrog cov tshuaj tiv thaiv corrosion rau marine lossis industrial cheeb tsam. Huab cua variants nyiamq345n qw(nrog Cu/Cr/Ni ntxiv) muab 2–8 × zoo dua atmospheric corrosion kuj rau kev txij nkawm- qauv dawb .

 

 

 

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb Q345q Hlau Rau Choj Tsev, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom tso siab rau peb kom xa cov khoom zoo siab -Cov Txias Txias- dov Steel raws sijhawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis ua raws li kev sov siab thiab kev xav tom qab- kev muag khoom, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau yam Cold -rolled Steel cov khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom -centric thiab hom- taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom txhim khu kev qha thiab cov khoom zoo thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, cov txheej txheem txheeb cais ntau thiab kev kawm ideological.
Peb Cov Khoom Txias-khoov Steel yog paub txog lawv cov kav ntev thiab kev ntseeg tau.
Relying ntawm superior tej yam kev mob thiab muaj zog zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg muas zaub.

Cim npe nrov: q345q steel rau choj tsev, Tuam Tshoj q345q steel rau choj tsev lwm tus neeg, hoobkas