500 HB GRADE OR ABOVE ABRASION-RESISTANT STEEL AND PRODUCTION METHOD THEREFOR

Disclosed in the present invention is 500 HB grade or above abrasion-resistant steel, the chemical components and the mass percentages thereof are as follows: 0.15%-0.45% of C, 0.15%-0.50% of Si, 0.50%-1.80% of Mn, P ≤ 0.015%, S ≤ 0.003%, V ≤ 0.030%, Nb ≤ 0.050%, 0.008%-0.025% of Ti, 0.50%-1.50% of...

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Bibliographische Detailangaben
Hauptverfasser:	QIAO, Mingliang, HUANG, Biaokai, CHEN, Meng, YANG, Liu, ZHAI, Dongyu, MA, Liujun
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Disclosed in the present invention is 500 HB grade or above abrasion-resistant steel, the chemical components and the mass percentages thereof are as follows: 0.15%-0.45% of C, 0.15%-0.50% of Si, 0.50%-1.80% of Mn, P ≤ 0.015%, S ≤ 0.003%, V ≤ 0.030%, Nb ≤ 0.050%, 0.008%-0.025% of Ti, 0.50%-1.50% of Cr, Ni ≤ 1.00%, 0.20%-0.80% of Mo, 0.025%-0.055% of Al, 0.0010%-0.0050% of B, 0.0010%-0.0018% of Mg, N ≤ 0.0045%, and the balance being Fe and inevitable impurities. The steel grade surface Brinell hardness is greater than or equal to 470 HBW. Further disclosed is a production method for the abrasion-resistant steel. The present invention formulates the components of NM500-NM600 steel grade abrasion-resistant steel according to a national standard "GB/T24186-2009 High Strength Abrasion Resistant Steel Plates for Construction Machine", thereby obtaining the abrasion-resistant steel performance indices meeting the national standard requirement. Est divulgué dans la présente invention un acier résistant à l'abrasion d