1. Wear resistant steel bar products have self-developed special wear-resistant steel. The raw materials purchased according to the user's requirements are also produced by national special steel works. Compared with other conventional round steels, the compactness, compression ratio, tensile strength and yield strength of the steel are improved. The properties and qualified rate of steel are guaranteed. The purchase of ordinary grinding rod is not a strict process.

2. The normal hardness of wear-resistant steel bar is hrc45-58, and that of ordinary grinding bar is hrc15-22. From the comparison of hardness index and the situation after use, the service life of wear-resistant steel bar with the same material is 120% - 140% higher than that of ordinary bar.

3. The straightness of wear-resistant steel bar products is treated by mechanical straightening machine to ensure that the ratio of out of straightness is less than one thousandth. The non straightness of ordinary grinding rod is generally 10 to 30 thousandth.

4. The fracture rate of wear-resistant steel bar products is generally less than 1%. The fracture rate of common grinding rod is large (uncertain).

5. The high temperature quenching process and medium temperature tempering process of wear-resistant steel bar products change the microstructure of medium, which makes the gold phase transformation of grinding rod more compact and wear-resistant. The impact toughness is also improved. There is no change in the quality of ordinary grinding rod.