Low-alloy abrasion-resistant steel and manufacturing method thereof

• Main Authors: JIAO SIHAI, ZHANG QINGFENG
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2011
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; PERFORMING OPERATIONS; POWDER METALLURGY; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; PUNCHING METAL; ROLLING OF METAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to low-alloy abrasion-resistant steel and a manufacturing method thereof. The low-alloy abrasion-resistant steel comprises the following compositions in percentage by weight: C: 0.12-0.24, Si: 0.20-0.70, Mn: 1.00-1.80, P: not more than 0.010, S: not more than 0.005, Cr: 0.30-1.40, Mo: 0.10-0.50, Ni: 0-0.80, Cu: 0-0.50, Al: 0.02-0.06, Ti: 0.005-0.02, and the balance of Fe and inevitable impurities. Due to reasonable design of element varieties and content and addition of a proper amount of alloy elements, the abrasion-resistant steel achieves the advantages of high yield strength, high hardness, better toughness, and favorable abrasion resistance.