1. Cov Txheej Txheem Txheej Txheem
Cov Qauv thiab Npe
Tus qauv yog EN 10025 (nrog cov kev ua haujlwm tshwj xeeb en 10025-3, en 10025-4, thiab lwm yam).
'S' sawv rau cov hlau txheem hlau, thiab "355" qhia tias yam tsawg kawg nkaus muaj zog ntawm 355 MPa.
Hom thiab Cov yam ntxwv
Tsawg-alloy, high-zog hlau nrog alloying ntsiab (piv txwv li, mn, cr, Cu, kev ua kom muaj zog, kev ua tsis tau zoo.
Cov kev hloov pauv raug suav nrog cov tib yam lossis ib txwm dov los ua kom zoo dua qub cov khoom siv thiab weldability.
2. Tshuaj lom neeg sib xyaw
Cov ntsiab loj
Cov pa roj carbon (c) Cov ntsiab lus tsawg dua lossis sib npaug rau {{0}}}}}}}}}}}}}}}}}}}}}}}. MN) tsawg dua lossis sib npaug nrog 1.60%.
Phosphorus (P), Sulfur (s) thiab lwm cov neeg raug quab yuam raug tswj tau raws li tsawg dua lossis sib npaug}. 025% kom ntseeg tau tias cov khoom ruaj khov.
Alloying Ntsiab
Ntxiv ib txoj hlua chromium (CR), tooj (CU) thiab lwm yam los txhim kho corrosion tsis kam thiab lub zog.
3. Cov Khoom Siv Kho Tshuab
Lub Zog Index
Tos lub zog ntau dua los yog sib npaug rau 355 MPa, tensile zog {}} mpa.
Cov Yuav Tsum Tau
Qhov kev cuam tshuam kub ib txwm muaj qhov zoo, ib puag ncig tsawg dua (kev nqus dej ntau dua lossis sib npaug rau S355NL).
4. Kev thov
Kev tsim kho thiab txuas hniav: rau cov tsev siab siab, cov txuas hniav loj heev thiab lwm yam kev tsim tawm uas yuav tsum muaj peev xwm muaj peev xwm siab.
Cov tshuab thiab cov nkoj: siv hauv kev tsim cov tshuab ua lag luam, nkoj lawj thiab cov hlab ntsha siab.
Cov khoom siv zog: Khoom siv hluav taws xob, cov khoom siv hluav taws xob hauv chaw nres tsheb thiab lwm yam kev kub siab, corrosion-resistant scenes.
5. Kev Ua Haujlwm Hauv Tsev
Lub tsev txawb nrog S355 yog Q345 (GB / T 1591 tus qauv thiab cov txheej txheem tshwj xeeb), tab sis}} n, s355n) kom ua kom zoo dua.
