1. Lub zog
Q550NH: Muaj zog (tawm lub zog ntau dua lossis sib npaug nrog 550 MPa, tensile muaj zog 630-800 {} log qauv.
Q355NH: Nruab nrab lub zog (tawm ntau dua lossis sib npaug ntawm 355 MPa, tensile 490-630 MPa), sib npaug rau kev siv dav dav.
Q235NH: Txo lub zog (tawm ntau dua lossis sib npaug nrog 235 MPa, Tensile 360-510 mpa me me.
2. Corrosion Kuj
Txhua qib tsim cov khaubncaws sab nraud povtseg tiv thaiv, tab sisQ550NHFeem ntau suav nrog cov ntsiab lus siab dua (piv txwv li, Cu, CR, NI) rau cov chaw hnyav (piv txwv li cov ntug dej hiav txwv / chaw nyob).
Q235Nh / q35555555Tej zaum yuav tsum muaj kev tshem tawm kom muaj xeb teeb.
3. Weldability & Kev Ua
Q550NH: Yuav tsum tau siv txoj hlua khau stricter (Preheat / tshaj tawm - Weld Kev Kho Mob (CE).
Q355 / Q235NH: Yooj yim rau Weld thiab cov txheej txheem, nrog qis ncaj ncaj.
4. Cov Ntawv Thov
Q550NH: Cov choj, siab - sawv daws teeb, tsuas yog cov cuab yeej siv (qhov chaw muaj zog thiab corrosion tsis kam yog qhov tseem ceeb).
Q355NH: Cov kev tsim kho uas ib txwm muaj, ntim, cov tsheb ciav hlau tsheb ciav hlau.
Q235NH: Hniav façades, tsis - thauj - bearing }မ} compon်.
5. Tus nqi
Q550NHyog kim kim vim alloy cov ntsiab lus thiab ua cov kev ua haujlwm nyuaj.
