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    AI Overview
    What's Inside a Ball Mill? The Secrets of Grinding Media ...
    High chrome grinding media balls typically contain 10%–30% Chromium (
    Crcap C r
    𝐶𝑟
    ) and 1.5%–3.5% Carbon (
    Ccap C
    𝐶
    ) to maximize wear and corrosion resistance in ball mills. High chrome cast iron is the standard, featuring a hard martensitic structure, with popular grades including 12-16%
    Crcap C r
    𝐶𝑟
     (medium) and 20-30%
    Crcap C r
    𝐶𝑟
     (high). They are crucial for mining, cement, and coal power applications. 
    Typical Chemical Specifications (Weight %) 
    High chrome grinding media chemical compositions are tailored for hardness and corrosion resistance, frequently meeting standards such as IS 6079-1989. 
    • Chromium (
      Crcap C r
      𝑪𝒓
      ):       10.0% – 30.0% (Commonly 14-18% or 18-22%)
    • Carbon (
      Ccap C
      𝑪
      ):       1.5% – 3.5%
    • Silicon (
      Sicap S i
      𝑺𝒊
      ):
      ≤is less than or equal to
      ≤
       1.50% (Typically 0.1%–1.0%)
    • Manganese (
      Mncap M n
      𝑴𝒏
      ):
      ≤is less than or equal to
      ≤
       1.50% (Typically 0.5%–1.0%)
    • Molybdenum (
      Mocap M o
      𝑴𝒐
      ):       0.2% – 0.6% (Used to improve hardenability)
    • Nickel (
      Nicap N i
      𝑵𝒊
      ):       0.2% – 0.5%
    • Copper (
      Cucap C u
      𝑪𝒖
      ):
      ≤is less than or equal to
      ≤
       1.5%
    • Phosphorus (
      Pcap P
      𝑷
      ):
      ≤is less than or equal to
      ≤
       0.1%
    • Sulfur (
      Scap S
      𝑺
      ):
      ≤is less than or equal to
      ≤
       0.1%
    • Iron (
      Fecap F e
      𝑭𝒆
      ):       Balance       
    Hardness and Microstructure 
    • Hardness: Typically 57 – 69 HRC.
    • Microstructure: Wholly tempered martensite with
      M7C3cap M sub 7 cap C sub 3
      𝑀7𝐶3
       type fine dispersed complex carbides.
    • Retained Austenite: Typically 10% maximum. 
    Common High Chrome Grades 
    • High Chrome (Low): 11.0–16.0%
      Crcap C r
      𝐶𝑟
       (lower cost, good for low-impact environments).
    • High Chrome (Medium): 14–18%
      Crcap C r
      𝐶𝑟
       (general purpose).
    • High Chrome (High): 18–32%
      Crcap C r
      𝐶𝑟
       (maximum corrosion/wear resistance).       
    Physical Features 
    • Size: Available from 12.5mm to 90mm (or higher) in diameter.
    • Application: Ideal for wet/dry grinding in mineral processing (gold, cement, coal).
    • Performance: Offers low wear rates (e.g., 20–50 g/ton) compared to forged steel. 
    • High-chromium cast-iron grinding ball and its production method
      Metallographic structure: carbide+proeutectoid carbide+Qu Huati. Claims (2) Hide Dependent. translated from. 1. HI-chrome cast iro...
      Google Patents
    • Sr. No. Name of the item Specification 1 Hi-Chrome Grinding ...
      LINERS FOR. BALL TUBE. MILLS. BBD-4772 and. BBD - 4760. HI-CHROME LINERS for Ball Tube Mills BBD-4772 and BBD-4760 having followin...
      Haryana Power Generation Corporation Limited
    • Chrome Grinding Media Balls - Atul Engineering
      High abrasion low impact. Application. First Chamber cement & raw mill. First Chamber cement& raw mill. First Chamber cement& raw ...
      Atul Engineering
    • High-Chrome grinding media - Magotteaux
      High-Chrome grinding media combines martensitic structure with hard chrome carbides. This provides the best wear resistance agains...
      Magotteaux
    • Cast High Chrome Balls | Molycop
      Features * Size: Cast high chrome balls are available in 12.5mm to 90mm diameter sizes. * Weight: Cast high chrome balls are avail...
      Molycop
    • What Is a High Chrome Casting Ball and How Does It Work? - XinMa
      Feb 12, 2026 — A high chrome casting ball is a type of grinding media made primarily from high chromium alloy cast iron. These balls typically co...
      www.ahxmzz.com
    • HI-CHROME GRINDING MEDIA
      TECHNICAL DETAILS. 1. NAME OF THE. ITEM. HICHROME GRINDING MEDIA. 2 APPLICATION. FOR BAUXITE GRINDING IN BALL MILLS. 3 SHAPE. SPHE...
      Government e-Marketplace
    • High chrome alloy steel material and preparation method thereof
      The high chrome alloy steel material contains the following chemical elements by mass percent: 2.6-2.8% of carbon, 11.3-12.5% of c...
      Google Patents
    • High-chromium cast-iron grinding ball and its production method
      Metallographic structure: carbide+proeutectoid carbide+Qu Huati. Claims (2) Hide Dependent. translated from. 1. HI-chrome cast iro...
      Google Patents
    • Sr. No. Name of the item Specification 1 Hi-Chrome Grinding ...
      LINERS FOR. BALL TUBE. MILLS. BBD-4772 and. BBD - 4760. HI-CHROME LINERS for Ball Tube Mills BBD-4772 and BBD-4760 having followin...
      Haryana Power Generation Corporation Limited
    • Chrome Grinding Media Balls - Atul Engineering
      High abrasion low impact. Application. First Chamber cement & raw mill. First Chamber cement& raw mill. First Chamber cement& raw ...
      Atul Engineering
    Show all
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    Sr. No. Name of the item Specification 1 Hi-Chrome ...


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    Chemical composition of selected grinding media (wt.%)


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    Atul Engineering
    https://atulengg.com › gm-balls
    Atul Engineering
    https://atulengg.com › gm-balls
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    People also ask
    What is the chemical composition of high chrome grinding media?
    A high-Cr cast iron grinding ball as pulverizing medium contains such chemical components (Wt. %) as C (2.0-3.0), Mn (less than 1.50), Cr (11.0-16.0), Si (less than 1.50), Cu (less than 1.50), Re (0.06-0.10), P (less than 0.1), S (less than 0.1) and Fe (rest).

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    What is the chemical composition of Hi chrome?
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    Ball mill - Wikipedia
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    Web results

    HI-CHROME GRINDING MEDIA


    Government e-Marketplace
    https://mkp.gem.gov.in › CatalogAttrs › 2023/11/30
    Government e-Marketplace
    https://mkp.gem.gov.in › CatalogAttrs › 2023/11/30
    PDF
    FOR BAUXITE GRINDING IN BALL MILLS. 3 SHAPE. SPHERICAL. 4 SIZE. 90MM. 5. DIMENSIONAL. TOLERANCES. NOMINAL DIA. ACCEPTABLE RANGE. 90MM. AS PER IS 6079:1989. 6.Read more
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