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Q390B poleiti ea tšepe

Steel grade Q390B e tlas'a tšepe e khethehileng GB/T1591 e leng bakeng sa lisebelisoa tse phahameng tse tlaase tsa alloy structural steels. , hlooho ea tiiso le liforeimi tse ling
Sebopeho sa Lik'hemik'hale
Lintho tse ka sehloohong tsa lik'hemik'hale tsa Q390B
C Si Mong P S V Nb Ti Kr Ni
0.20 0.55 1.00-1.60 0.040 0.040 0.02-0.20 0.015-0.060 0.02-0.20 0.30 0.70
Thepa ea Mechini
Botenya (mm)
Q390B ≤ 16 > 16 ≤ 35 > 35 ≤ 50 >50
Matla a tlhahiso (≥Mpa) 390 370 350 330
Tensile strength (Mpa) 490-650
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