Patent ID: 9695487
Date: 2017-07-04
CPC Classifications: C21D,C22C

Claim:
1. A wear-resistant steel plate, comprising the following chemical compositions, by weight percentage, C: 0.205-0.25%, Si: 0.20-1.00%, Mn: 1.0-1.5%, P≦0.015%, S≦0.010%, Al: 0.02-0.04%, Ti: 0.01-0.03%, N≦0.006%, Ca≦0.005%, and at least one of Cr, Ni and Mo with Cr≦0.70%, Ni≦0.50%, and Mo≦0.30%, and the balance being Ferrum and unavoidable impurities; wherein the wear-resistant steel plate has a Brinell hardness of ≧420 HB and has a structure characterized as tempered martensite and 5-10% residual austenites, and wherein the wear-resistant steel plate does not contain B.