Q235A steel phaj

Boiler steel phaj yog tsuas yog siv nyob rau hauv kev tsim ntawm ntau yam boilers thiab tseem ceeb accessories. Txij li thaum lub boiler steel phaj ua hauj lwm nyob rau hauv nruab nrab kub (qis dua 350 ° C) thiab siab siab, nyob rau hauv tas li ntawd mus rau lub siab, nws kuj yuav raug cuam tshuam, qaug zog load thiab dej vapor corrosion. Nws yuav tsum tau lav lub zog, thiab muaj kev vuam zoo thiab kev ua haujlwm txias txias. Cov qib: Q245R, A5155 qib 55, A5156 qib 60, Q235A carbon steel phaj, A5166 qib 65, A51670 qib.

Lub elongation ntawm low-alloy high-strength steel yog 15% -23%, thiab qhov cuam tshuam nqus zog ntawm chav tsev kub yog ntau dua 34J. Q235A carbon steel phaj, tsis tshua muaj alloy siab zog steel muaj cov yas zoo thiab muaj kev cuam tshuam, uas tuaj yeem zam qhov tawg tawg thaum muaj kev cuam tshuam thiab ua kom txias khoov thiab vuam yooj yim. Tsis tas li ntawd, qhov kev hloov pauv ntawm qhov kub thiab txias ntawm cov hlau tsis tshua muaj zog siab yog qhov tsawg, thiab qhov nqus ua haujlwm ntawm E-qib steel ntawm -40 ° C tsis tsawg dua 27J. Qhov no yog ib qho tseem ceeb heev rau engineering Cheebtsam thiab kev thauj mus los xws li tsheb, nkoj, offshore roj platforms, ntim, txuas hniav, thiab lwm yam.

Cov ntsiab lus tseem ceeb ntawm Q235A
C	Si	Mn	P	S
0.22	0.35	1.40	0.045	0.050

Thickness (hli)
qw 235a	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100 ≤ 150	> 150
Yield zog (≥Mpa)	235	225	215	215	195	185
Tensile zog (Mpa)	370-500