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    7Jan, 2026
    Different Types of Wear-Resistant Castings
    Wear-resistant castings are essential components in industrial sectors like mining, metallurgy, cement, and construction, engineered to withstand extreme abrasion, impact, and harsh environments. Different types of wear-resistant castings are tailored with specific materials and structures to match diverse wear conditions.
    Understanding the core characteristics of each wear-resistant casting type helps you select the right solution to extend component lifespan, reduce downtime, and lower operational costs.

    1. High-Chromium Wear-Resistant Castings

    High-chromium castings are the most widely used wear-resistant components, renowned for their exceptional abrasion resistance in high-friction scenarios.
    • Core material: High-chromium cast iron (Cr content 12%-30%), combined with carbon, molybdenum, and nickel to form hard M7C3 carbides.
    • Key features: Surface hardness HRC60-68, 5-8 times more wear-resistant than ordinary cast steel; low wear rate (≤0.3kg/t material); good corrosion resistance to mild acids/alkalis.
    • Performance highlights: Maintains structural integrity in long-term abrasive operations; minimal deformation under high grinding pressure.
    • Typical applications: Crusher liners, mill liners, conveyor chutes, cement clinker grinding parts, ore processing equipment components.

    2. High-Manganese Steel Wear-Resistant Castings

    High-manganese steel castings are designed for high-impact wear scenarios, leveraging work-hardening properties to enhance durability.
    • Core material: High-manganese steel (Mn content 11%-14%), low carbon content (0.9%-1.2%) for superior toughness.
    • Key features: Initial hardness HB200-250; surface hardness rises to HB500+ after work hardening under impact; impact toughness ≥200J/cm², resisting brittle fracture.
    • Performance highlights: Self-sharpening during operation; excellent resistance to heavy material collisions; easy to cast into complex shapes.
    • Typical applications: Jaw crusher plates, impact crusher blow bars, railway crossings, mining bucket teeth, concrete mixing blades.

    3. Alloy Steel Wear-Resistant Castings

    Alloy steel castings balance wear resistance, toughness, and strength, suitable for medium-wear and high-load industrial scenarios.
    • Core material: Low-alloy steel (alloy elements: Cr, Mn, Mo, Ni) or high-alloy steel (e.g., AR400/AR500 grade).
    • Key features: Hardness HRC45-55; tensile strength ≥800MPa; impact toughness ≥150J/cm², combining wear resistance and load-bearing capacity.
    • Performance highlights: Good weldability and processability; stable performance in temperature ranges from -40℃ to 400℃.
    • Typical applications: Heavy machinery frames, conveyor rollers, gearboxes, hydraulic components, mining equipment structural parts.

    4. Bimetallic Wear-Resistant Castings

    Bimetallic castings combine two different materials to leverage the advantages of wear resistance and toughness, offering cost-effective performance.
    • Core structure: Wear layer (high-chromium alloy/high-manganese steel) + base layer (carbon steel/alloy steel), via composite casting technology with bonding strength ≥300MPa.
    • Key features: Wear layer provides high abrasion resistance; base layer ensures structural toughness and anti-deformation; 30%-50% cost savings vs. full high-alloy castings.
    • Performance highlights: Avoids “hard but brittle” defects of single high-alloy materials; long service life in mixed wear (abrasion + impact) scenarios.
    • Typical applications: Mill liners, crusher concave liners, biomass boiler grates, coal pulverizer components.

    5. Ceramic-Embedded Wear-Resistant Castings

    Ceramic-embedded castings are high-end options for ultra-abrasive and corrosion-prone environments, integrating ceramic’s extreme wear resistance with metal’s toughness.
    • Core structure: Metal matrix (alloy steel) embedded with alumina/zirconia ceramic particles, via casting or sintering technology.
    • Key features: Ceramic hardness HV1200-1800, 10-15 times more wear-resistant than high-chromium alloy; excellent corrosion resistance to strong acids/alkalis; high temperature resistance (up to 800℃).
    • Performance highlights: No metal contamination of materials; suitable for precision wear protection in harsh chemical or food processing scenarios.
    • Typical applications: Chemical pipeline liners, food processing equipment parts, ultra-hard mineral grinding components, desulfurization equipment.

    6. Key Selection Criteria for Wear-Resistant Castings

    Selecting the right wear-resistant casting type requires matching its features to your specific wear conditions:
    • Wear type: High abrasion (low impact) → high-chromium/ceramic-embedded; high impact (low abrasion) → high-manganese steel; mixed wear → bimetallic/alloy steel.
    • Operating environment: Corrosive → ceramic-embedded/high-chromium; high temperature → alloy steel/ceramic-embedded; low temperature → alloy steel (low-temperature toughness).
    • Component function: Load-bearing → alloy steel/bimetallic; complex shape → high-manganese steel/high-chromium; precision protection → ceramic-embedded.
    • Cost budget: High budget → ceramic-embedded/high-chromium; cost-sensitive → bimetallic/high-manganese steel.

    7. Maintenance Tips to Extend Wear-Resistant Casting Life

    Proper maintenance enhances the performance and service life of wear-resistant castings:
    • Regular inspection: Check wear status and structural integrity monthly; replace when wear exceeds 30% of the original thickness.
    • Uniform operation: Avoid uneven load or impact on castings; ensure consistent material feeding and processing parameters.
    • Corrosion protection: Clean and apply anti-corrosion coatings regularly for castings in humid or chemical environments.
    • Storage management: Store spare castings in dry, ventilated areas; avoid collision and moisture to prevent rust or deformation.

    Why Tailored Wear-Resistant Castings Matter for Your Operation

    Different wear-resistant casting types have unique feature advantages, and mismatched castings will lead to frequent replacements, low operational efficiency, and high costs.
    Investing in tailored wear-resistant castings ensures optimal protection of key equipment, improves production stability, and maximizes the return on your industrial equipment investment.
    Need help selecting the right wear-resistant casting type for your specific equipment or working conditions? Share your requirements for a free customized recommendation!

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    16Aug, 2019
    Advantage of Bimetal Hammer Head

    Bimetal Hammer Head

    Hammer head is a key component on the hammer crusher used in building materials, mining, chemical industry, etc. It is also a wearing part. The traditional hammer head is mostly cast with high-manganese steel, and the high-manganese steel is used to improve the wear resistance under the impact load, but its wear resistance is far from being suitable for the modern production demand of high efficiency and low consumption. Due to the short life of the hammer and frequent replacement, the equipment operation rate is reduced.
    Therefore, it is necessary to seek a new material and new technology to improve the function and service life of the hammer.

    When the hammer head does not change its surface shape at the beginning of the work, the hammer head is mainly subjected to impact wear, and the material impacts the metal surface with a positive force to cause plastic deformation and impact craters.
    When the working surface of the hammer head is ground into an arc, the surface force changes at this time. The former has an impact on the hammer head, and the latter causes cutting and erosion on the hammer surface.
    Although the impact of the material can produce a certain amount of work hardening, the impact force is not enough to form a solid hardened layer on the working surface of the hammer head, resulting in insufficient wear resistance of the hammer head.

    Bimetal Hammer HeadBimetal Hammer Head

    Main Material Bimetal Hammer Head:
    Material C Mn Si Cr P S
    ZGMn13Cr2 1.0-1.3 11-14 0.3-0.6 1.7-2.4 ≤0.05 ≤0.03
    ZGMn13Cr2 1.1-1.4 17-20 0.3-0.6 1.7-2.4 ≤0.05 ≤0.03
    ZGMn13Cr2 1.1-1.4 20-24 0.3-0.6 1.7-2.4 ≤0.05 ≤0.03
    ZGMn18Cr2 1.1-1.5 16-19 ≤0.8 1.5-2.5 ≤0.07 ≤0.04
    ZGMn22Cr2 1.1-1.4 20-24 ≤0.8 1.5-2.5 ≤0.07 ≤0.04
    Advantage of Bimetal Hammer Head

    The traditional raw material of the hammer head is a kind of pure austenitic wear-resistant steel with excellent mechanical properties.
    Its tensile strength can reach above 1000MPa, the elongation can reach 100%, and the impact toughness reaches 300J/ Cm2, hardness up to 200HB. Chromium cast iron is an excellent wear-resistant material, but it has low resistance.
    The impact toughness is usually 5-7 J /cm2, which is prone to cracking when impacted.
    The refore, high chromium cast iron is used as the hard point of the working end, and high manganese steel is used as the supporting phase and the hammer hand.
    The high-chromium cast iron and high-manganese steel are used to produce the bimetal wear-resistant hammer head, and the joint surface is metallurgical joint, which can better meet the requirements of the hammer head.

    Bimetal Hammer Head

    Hammer Head:

    Therefore, it is not difficult to conclude that the reason why the bimetallic hammer can have such superiority is mainly due to two factors:
    one is the production of materials, the bimetallic hammer is made of two metals, two The metal materials have their own characteristics and have strong wear resistance.
    The second is the production process. The hammer head is processed by the composite casting process. The two metal materials need to be well combined, which requires a superb manufacturing process.
    The two metals blend well and can take on new roles.

     

    Eternal Bliss Alloy Casting & Forging Co, Ltd.

    Technical Dept.

    E-mail: sales@ebcastworld.com

    what’s app: 0086-13093023772

    Technical department

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