Lub ntsiab tsis zoo?
Highly rhiab heev rau notches: khawb / qhov yooj yim ua rau kev ntxhov siab concentration tawg.
Tsawg-kub toughness yog qis dua Q355. Tsis yog hnav- cov khoom siv tiv taus, tsis haum rau siab - hnav daim ntaub ntawv.
Corrosion kuj?
Txheem rau cov pa roj carbon zoo tib yam, yuav tsum tau txheej; huab cua-resistant version Q345NQR2 muaj Cu/P/Cr/Ni, txhim kho corrosion kuj los ntawm 2-8 zaug.
Hom kev ua haujlwm tsis zoo?
Welding txias cracking, qis-kub nkig tawg, qaug zog tawg, kev nyuaj siab concentration tawg.
Txoj kev kho deg?
Kev tshem tawm xeb (sandblasting / txhaj tshuaj blasting), txheej (tiv thaiv- xim xim / hluav taws kub retardant xim), kub-dip galvanizing (rau siab sab nraum zoov corrosion kuj).
Yuav ua li cas xaiv ntawm Q355 thiab Q355?
Cov peev nyiaj-sensitive, chav tsev kub: Xaiv Q345B/C. Tsawg kub / siab vuam yuav tsum, ntev - lub sij hawm cia siab: Ua ntej Q355C/D/E.