supply grinding steel balls

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GRINDING STEEL BALLS (STANDARD: YB/T 091-2005) Forged steel grinding balls: Suit Equipment: both drying and wet ball mills Tech Specs: The forged plant operates four production lines and sources input barstock directly from HM rolled grinding balls. It offers a hardness of ≈65HRc in surface, slowly decreasing towards the core. Diameters available: 20 - 15Omm (1½” --5″ ). Key Benefits: Improved wear resistance due to quenching and tempering.. Steady milling conditions due to wear reduction in wear rate. It is the best-suited solution to fight wear: it is highly resistant to both abrasion and impact. BRAND Materials C Mn Si Cr S P Mo Ni HM B-1 50MN 0.58-0.65 0.85-1.2 0.17-0.37 0.2-0.4 ≤0.035 ≤0.035 HM B-2 60MN 0.75-0.8 0.8-1.0 0.15-0.25 0.55-0.6 ≤0.03 ≤0.03 HM B-3 65MN 0.55-0.6 0.7-0.8 0.17-0.37 0.9-1.1 ≤0.03 ≤0.03 0.05-0.1 0.01-0.05 HM B-4 75Mn 0.45-0.55 0.7-1.0 0.17-0.37 ≤0.03 ≤0.03 HM B-5 75MnCr 0.68-0.75 0.8-0.9 0.17-0.37 0.4-0.5 ≤0.03 ≤0.03 HM B-6 75MnSi 0.7-0.9 0.8-1.02 0.1-0.4 0.7-1.05 ≤0.02 ≤0.02 0.03-0.15 0-0.05 HM B-6A 75MnSi 0.95-1.03 0.92-1.0 0.2-0.3 0.4-0.6 ≤0.02 ≤0.02 HM B-7 Wear-resistant Alloy 0.65-0.75 0.9-1.0 0.17-0.37 0.7-0.9 ≤0.02 ≤0.02 0.05-0.1 0.1-0.2 CASTING ALLOY GRINDINGBALLS(STANDARD:GB/T 17445-1998) Suit Equipment: cement drying grinding mills SIZE: 20mm-120mm BRAND Material C Si Cr Mn S P Special-1 Cr-22-32% 2.0-2.8 ≤1.0 22-32 0.5-2.0 ≤0.06 ≤0.08 Special-2 Cr-17-22% 2.0-2.8 ≤1.0 17-22 0.5-2.0 ≤0.06 ≤0.08 Special-3 Cr-15-17% 2.2-3.0 ≤1.0 15-17 0.5-2.0 ≤0.06 ≤0.08 Special-4 Cr-11-14% 2.2-3.2 ≤1.0 11-14 0.5-2.5 ≤0.06 ≤0.08 Special-5 Cr-5-10% 2.1-3.2 ≤1.2 5-10 0.5-1.5 ≤0.06 ≤0.08 Special-6 Cr-1.5-3% 2.2-3.5 ≤1.2 1.5-3 0.5-1.5 ≤0.06 ≤0.08

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Shandong Huamin Steel Ball Company

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