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Home > Nā huahana > Papa kila > Kaha Kiʻekiʻe Haʻahaʻa Alloy Steel
Q235A pā kila
Q235A pā kila
Q235A pā kila
Q235A pā kila

Q235A pā kila

Loaʻa i ka Q235 carbon steel he ʻehā mau māka like ʻole e like me Q235A, Q235B, Q235C a me Q235D. ʻO ka ʻokoʻa nui ma waena o kēia mau māka kalapona ʻehā ʻo ia ka hopena hopena.
Hoʻohui Kimia
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
Waiwai Mechanical
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
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