All Products. At YMY Wear Parts, we provide high-quality, wear-resistant components designed to enhance the durability and efficiency of your heavy equipment. Casting Items .Hardness: Aver. 450 HB .Impact Strength: > 20 J .Tensile Strength: > 1500 MPa Track Shoes .Hardness: Aver. 420 HB .Impact Strength: > 35 J .Tensile Strength: > 1500 MPa Bolts & Nuts .Hardness: Aver. 900 HB .Impact Strength: > 20 J .Tensile Strength: > 1200 MPa Ripper Shanks .Hardness: Aver. 450 HB .Impact Strength: > 20 J .Tensile Strength: > 1500 MPa Grouser Bars .Hardness: Aver. 450 HB .Impact Strength: > 20 J .Tensile Strength: > 1500 MPa Wear Blocks .Hardness: Aver. 450 HB .Impact Strength: > 20 J .Tensile Strength: > 1500 MPa