Steel balls and rods

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Steel bars and balls of different models have varying weights. The weights of the steel balls are as follows: For 20mm ball mill steel balls, the theoretical weight is 32 grams, and their surface hardness is 60+HRC. 25mm ball mill steel balls: 25MM ball mill steel balls, with a theoretical weight of 65g and a surface hardness of 60+HRC. 30mm ball mill steel balls: 30MM ball mill steel balls with a theoretical weight of 110g and a surface hardness of 60+HRC. 40mm ball mill steel balls: 40MM ball mill steel balls with a theoretical weight of 263g and a surface hardness of 60+HRC. 50mm ball mill steel balls: These 50MM ball mill steel balls have a theoretical weight of 513g, with a surface hardness of 60+HRC. 60mm ball mill steel balls: These balls have a theoretical weight of 888g, with a surface hardness of 60+HRC. 70mm ball mill steel balls: Their theoretical weight is 1410g, and their surface hardness is also 60+HRC. 80mm ball mill steel balls: Theoretical weight is 2104g, with a surface hardness of 60+HRC. 90mm ball mill steel balls: Theoretical weight is 2996g, again with a surface hardness of 60+HRC. 100mm ball mill steel balls: Theoretical weight is 4110g, with a surface hardness of 60+HRC. 110mm ball mill steel balls: Theoretical weight is 5457g, with a surface hardness of 60+HRC. 120mm ball mill steel balls: Theoretical weight is 7102g, with a surface hardness of 60+HRC. 130mm ball mill steel balls: Theoretical weight is 9030g, with a surface hardness of 58+HRC. 140mm ball mill steel balls: Theoretical weight is 11278g, with a surface hardness of 55+HRC. 150mm ball mill steel balls: Theoretical weight is 13871g, with a surface hardness of 55+HRC. The weight of a steel rod is calculated as 0.00617*d2*l. Cao Qingfu: 13658620726