Impact Hammer Plates of Different Materials: Advantages and Compatible Material Comparison Table
Selection Tips:
1. Prioritize "Material Hardness + Abrasiveness": For hard materials (f>12), choose high-manganese steel/composite materials; for abrasive materials, choose high-chromium alloy/nickel hard alloy.
2. For materials containing large pieces/impurities, choose "impact-resistant" (high-manganese steel, composite materials); for pure materials, choose "high-wear-resistant" (high-chromium, nickel hard alloy).
3. If budget is limited, choose high-manganese steel; for longer service life, choose high-chromium composite/nickel hard alloy.
Impact hammers of different materials: Advantages and compatible material comparison table
| Hammer Plate Material | Core Advantages | Suitable Materials (Classified by Hardness/Abrasiveness) |
| High-manganese steel | Extremely tough and impact-resistant, able to withstand impacts from hard materials without chipping or cracking; surface wear resistance can be improved through work hardening. | High-hardness, high-impact materials: granite, basalt, diabase, pebbles; materials containing impurities/large pieces: construction waste, concrete blocks, crushing of hard rock from mines. |
| High-chromium alloy | High hardness (HRC≥60), excellent wear resistance, abrasion life 3-5 times that of high-manganese steel; smooth surface, does not easily stick to materials. | Medium-low hardness, highly abrasive materials: limestone, dolomite, quartz sand, coal gangue, shale, gypsum, feldspar. |
| High-chromium cast iron composite | Working surface is high-chromium alloy (wear-resistant), base material is high-manganese steel/alloy steel (impact-resistant), combining "wear resistance +..." "Impact Resistant" |
Complex materials with medium to high hardness and strong abrasiveness: iron ore, copper ore, lead-zinc ore, quartzite, and mixtures of basalt and limestone. |
| Wear-resistant alloy steel | Excellent overall performance: high strength, good toughness, and moderate wear resistance; properties can be adjusted through heat treatment, offering flexible adaptability. | Medium-hardness, moderately abrasive materials: coal, coke, slag, and medium-hardness rocks (f=6~12) for crushing. |
| Nickel hard alloy | Extremely high hardness (HRC≥65), top-tier wear resistance, and abrasion resistance far exceeding other materials; good high-temperature stability. | High abrasion and fine crushing scenarios: fine crushing of quartz sand, corundum, ceramic raw materials, and high-purity ore beneficiation and crushing (with high requirements for impurities). |
As the static counterpart in jaw crushers, fixed jaw plates form the primary crushing surface for hard rocks. Used in granite processing, they withstand continuous impact while maintaining precise discharge gaps, ensuring uniform aggregate sizing for high-strength concrete production.
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