TusTshuaj lom neeg muaj pes tsawg leeg ntawm 09cupcrni Steel Phajyog qhov tseem ceeb vim tias nws ncaj qha txiav txim cov khoom sivhuab cua tiv thaiv, cov tshuab ua zog, weldability, thiab lub sijhawm ntevnyob rau hauv dorrosive ib puag ncig.
Cov laj thawj vim li cas muaj ntau yam teeb meem:
Corrosion Kuj:
CU (tooj liab) + CR (chromium) + ni (npib tsib): Daim txheej ntom ntom oxide txheej (patina) los thaiv ntxiv xeb, zoo tagnrho rau choj, ntim khoom, thiab cov ntug dej hiav txwv.
Lub Zog & Kev Toughness:
C (carbon, cov ntsiab lus tsawg ~ 0.12%): Cov tshuav hluav taws xob thiab muaj zog.
P (phosphorus): Txhim kho cov khoom siv hluav taws xob daws tsis tau tab sis raug tswj kom tsis txhob muaj qhov phem.
Weldability & Fabrication:
QiS (Sulphur) & p: Txo qhov kub / txias tawg thaum lub sij hawm vuam.
Txuj Ci:
Sib ntsibGB / T 4171(Tuam Tshoj huab cua huab cua hlau), piv rauCorten A / B (Astm)lossisS355j0wp (en).
Raug kev suav sib xws (WT%):
C: Tsawg dua los yog sib npaug rau 0.12%,Si: 0.20–0.50%, Mn: 0.20–0.50%, P: Tsawg dua lossis sib npaug rau 0.070%,S: Tsawg dua los yog sib npaug rau 0.030%,CU: 0.25–0.55%, Cr: 0.30–1.25%, Ni: Tsawg dua lossis sib npaug rau 0.65%.
Cov Ntawv Thov: Cov tsheb ciav hlau tsheb ciav hlau, lub hwj huam yees, thiab cov kws kho vajtse façades nyob qhov twgTsawg txij nkawmthiabHuab Cua Kev Ua Haujlwmyog qhov tseem ceeb.
