Q390GJC Siab-Lub zog Carbon Steel Phaj rau Nkoj / Choj (Kub-Rolled)

 

Q390GJC yog qhov siab -lub zog qis- alloy structural steel phaj teev nyob rau hauv Suav cov qauv (feem ntau GB / T 19879Hlau Phaj rau Cov Khoom Siv Hauv Tsevthiab GB/T 1591Siab-Lub zog qis-Alloy Structural Steels). Nws yog tsim los rau cov txheej txheem tseem ceeb xws li txuas hniav loj, nkoj hulls, thiab siab - nce lub hauv paus. Kev tsim qauv qhia txog nws cov cwj pwm tseem ceeb: "Q390" qhia tias qhov muaj zog tsawg kawg nkaus ntawm 390 MPa; "GJ" stands rau "Gao Jian" (siab- nce kev tsim kho / siv cov qauv); thiab "C" qhia txog nws cov qib toughness (kuaj ntawm 0 degree). Hauv qab no yog cov ncauj lus kom ntxaws txog nws cov yam ntxwv, kev ua tau zoo, kev siv, thiab cov txheej txheem ntau lawm:

1. Chemical Composition (Hom, % los ntawm Qhov hnyav)

Q390GJC qhov muaj pes tsawg leeg yog optimized kom sib npaug lub zog, toughness, thiab weldability, nrog microalloying ntsiab pab txhawb cov nplej refinement thiab los nag ntxiv dag zog:

 

Lub ntsiab	Cov ntsiab lus ntau	Lub luag haujlwm
Cov pa roj carbon (C)	Tsawg dua lossis sib npaug li 0.20%	Ua kom lub zog yam tsis muaj kev cuam tshuam cov weldability (cov pa roj carbon tsawg txo qhov kev pheej hmoo tawg).
Manganese (Mn)	1.00–1.60%	Txhim khu lub zog thiab toughness; txhawb kev daws teeb meem ntxiv dag zog.
Silicon (Si)	0.20–0.55%	Ua raws li deoxidizer; txhim kho nto zoo thiab oxidation kuj.
Niobium (Nb)	0.015–0.060%	Refines austenite nplej thaum dov; Cov ntaub ntawv carbides (NbC) rau nag lossis daus.
Vanadium (V)	0.02–0.15%	Synergizes nrog Nb los kho cov nplej thiab txhim kho qis -kub toughness.
Titanium (Ti)	Tsawg dua lossis sib npaug li 0.20%	Tswj cov ntsiab lus nitrogen; tiv thaiv grain coarsening thaum vuam.
Phosphorus (P)	Tsawg dua lossis sib npaug li 0.030%	nruj me ntsis txwv kom tsis txhob txias brittleness (tseem ceeb rau qis -kub choj / nkoj ib puag ncig).
Sulfur (S)	Tsawg dua lossis sib npaug li 0.025%	Txwv kom tsis txhob kub tawg thaum vuam thiab dov.

 

 

 

 

 

 

 

 

 

 

 

 

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 Q390GJC Siab -Lub Zog Carbon Nkoj / Choj Kub Rolled Steel Phaj, 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- Rolled Steel cov khoom 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, kev txheeb cais ntau thiab kev kawm ideological.
Peb Cov Khoom Txias -khoov Steel yog paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

Cim npe nrov: q390gjc siab-lub zog carbon nkoj / choj kub dov steel phaj, Tuam Tshoj q390gjc siab-lub zog carbon nkoj / choj kub dov steel phaj lwm tus neeg, hoobkas