High-chromium impact crusher board hammer

The invention discloses a high-chromium impact crusher board hammer. The board hammer is cast by using the following raw materials in percentage by weight: 27 to 29 percent of chromium, 2 to 3 percent of molybdenum, 3 to 4 percent of rare earth, 1 to 3 percent of nickel, 1 to 2 percent of titanium, 2 to 3 percent of manganese and the balance of iron, wherein the rare earth is neodymium or yttrium. The board hammer has the advantages that: (1) the board hammer has excellent impact toughness and surface work hardening property and has incomparable abrasion resistance under the condition of bearing an impact load, and the service life of the board hammer can be greatly prolonged; and (2) the board hammer has good heat and corrosion resistance, and greatly increases the quality of a processed product.