US EPA

8153247 

Journal Article 

Study on the low alloy wear-resistant steel for heavy section casting 

Wang, LN; Zhao, AM; Li, JC 

2005 

26 

10 

895-898 

Chinese 

A new kind of low alloy wear resistance steel used for heavy and large sized casting was investigated and its chemical composition, microstructure, mechanical properties as well as its heat treatment process were also introduced in this paper. The results show that this kind of steel has enough hardenability, and the microstructure treated by quenching composed of martensite or the combination of the martensite and bainite, that possesses high hardness, high strength and enough toughness as well as high wear resistance. Hardness of this steel is greater than HRC48. Impact toughness αk > 49 J/cm2 with elongation δ is greater than 6% and tensile strength σb > 1350 MPa. The wear resistance property of this low alloy steel is 1.36 times more than the common high manganese steel. Due to the small amount of alloy addition, it is low cost and easy to be used in industry with obvious economy and society benefit. 

Hardenability; Hardness; Heavy work; Low alloy steel; Toughness; Wear-resistance