Q235A pā kila

Hoʻohana nui ʻia ka pā kila boiler i ka hana ʻana i nā paila like ʻole a me nā mea koʻikoʻi. Ma muli o ka hana ʻana o ka paila kila ma ka mahana wela (ma lalo o 350 ° C) a me ke kaomi kiʻekiʻe, ma waho aʻe o ke kaomi kiʻekiʻe, pili nō hoʻi ia i ka hopena, ka luhi luhi a me ka ʻino wai. Pono ia e hōʻoiaʻiʻo i kahi ikaika, a he maikaʻi ke kuʻi ʻana a me ke anu anuanu. Nā māka maʻamau: Q245R, A5155 papa 55, A5156 papa 60, Q235A papa kila kalapona, A5166 papa 65, A51670 papa.

ʻO ka elongation o ke kila ikaika kiʻekiʻe haʻahaʻa he 15% -23%, a ʻoi aku ka nui o ka ikehu absorption i ka lumi wela ma mua o 34J. ʻO ka pā kila kalapona Q235A, ke kila ikaika kiʻekiʻe haʻahaʻa he palaki maikaʻi a me ke kūpaʻa ʻana i ka hopena, hiki ke pale i ka haki ʻana i ka wā o ka hopena a maʻalahi ke kuʻi anu a me ka wili. Eia kekahi, he haʻahaʻa ka mahana hoʻololi brittle o ke kila ikaika kiʻekiʻe, a ʻo ka waiwai hana absorption o ke kila E-grade ma -40 °C ʻaʻole i emi iho ma mua o 27J. He mea koʻikoʻi kēia no nā ʻāpana ʻenekinia a me nā ʻano o ka lawe ʻana e like me nā kaʻa, nā moku, nā paepae aila waho, nā ipu, nā alahaka, etc.

ʻO nā mea kemika nui ka hoʻohui ʻana o Q235A
C	ʻO Si	ʻO Mn	P	S
0.22	0.35	1.40	0.045	0.050

Mānoanoa (mm)
Q235A	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100 ≤ 150	> 150
Ka ikaika hua (≥Mpa)	235	225	215	215	195	185
Ka ikaika wili (Mpa)	370-500