Introduction to Product | Rolled balls
It is advantageous to source hot rolled steel balls, manufactured using rotary cutting and roll forging, from IRAETA because of the guaranteed fast delivery, large production and consistent quality, making this an especially suitable proposition for long-term procurement. Rolled balls have replaced traditional cast-iron balls in ball mills. They are now the primary grinding medium in high-capacity mills used by large-scale metal mining ventures in foreign countries. Thanks to our annual steelmaking capacity of 500,000 tons of various forged products, IRAETA can source raw material customized as per your exact requirements directly from reputed steel mills in China, and manufacture all kinds of alloy steel for your grinding ball requirements. Our steel ball business began in 2015 using the latest advanced heat treatment technologies. And that is why, more than 10 companies from the list of the global mining top 40 released by PwC use our products.

Material: B2
C : 0.76-0.82 % Si: 0.17-0.35 % Mn: 0.72-0.80 % Cr ：0.50-0.60 % S :≦0.015 %
Material: B2-1
C: 0.77-0.81 % Si: 0.26-0.34 % Mn: 0.72-0.80 % Cr: 0.32-0.40 % S: ≦0.015 %
Material: B3
C: 0.61-0.65 % Si: 1.73-1.80 % Mn: 0.73-0.80 % Cr: 0.80-0.88 % S: ≦0.015 %
Material: B3A
C: 0.61-0.64 % Si: 1.45-1.55 % Mn: 0.68-0.76 % Cr: 0.75-0.85 % S: ≦0.015 %
Material: B4
C: 0.66-0.74 % Si: 1.25-1.40 % Mn: 0.50-0.70 % Cr: 0.85-1.00 % S :≦0.022 %
Material: B6
C: 0.74-0.85 % Si: 0.15-0.35 % Mn: 0.90-1.05 % Cr: 0.88-0.98 % S:≦0.020 %

Material : steel, alloy
Applications : grinding