Product introduction 

Wear-resistant steel plate is a specialty steel plate that utilizes specialized material composition, rolling processes, or surface treatments to significantly enhance both surface and overall wear resistance. Its core function is to extend equipment life and reduce maintenance costs under high-wear conditions, such as material impact, sliding friction, and particle erosion. Wear-resistant steel plate is not made from a single material but rather a diverse system of steel plates suitable for a variety of applications.

Core performance of wear-resistant plates

1. High wear resistance: The core performance indicator is wear hardness (commonly measured using Brinell hardness (HB) or Rockwell hardness (HRC). Ordinary steel plates have a hardness of approximately 150-250 HB, while wear-resistant plates generally have a hardness of ≥300 HB. Some high-end models can reach 500-650 HB, resulting in wear resistance 3-10 times that of ordinary steel plates.

2. Balanced strength and toughness: Most wear-resistant plates utilize a composite structure of a "low-carbon steel base + a high-hardness wear-resistant layer," or utilize alloying techniques (such as the addition of elements such as Cr, Mn, and Mo). This ensures high hardness while avoiding the brittle cracking associated with pure cemented carbide, allowing them to withstand certain impact loads (such as falling materials and equipment vibration).

3. Machinability: It can be cut, welded, bent, drilled, and other conventional processes, making it easy to manufacture into equipment components (such as silo liners, conveyor chutes, and excavator bucket teeth) without the need for specialized processing equipment.

4. Corrosion Resistance (Select Types): Wear-resistant plates containing alloying elements such as Cr and Ni (such as wear-resistant stainless steel) can also be used in complex wear and corrosion conditions (such as chemical material transportation and seawater environments), providing both wear resistance and rust prevention.

Main categories of wear-resistant plates

NM series wear-resistant plates

Technical indicators

1. Hardness: This determines basic wear resistance and should be selected based on the operating conditions. For applications primarily subject to sliding friction, choose a high hardness (e.g., 500HB or higher). For applications subject to high impact loads, choose a lower hardness (300-450HB) to maintain toughness.

2. Impact toughness (αk): This measures impact resistance, measured in J/cm². A higher value reduces the likelihood of fracture under impact. For high-impact environments such as mining and construction, a value of ≥20 J/cm² is required.

3. Wear-Resistant Layer Thickness: This is a core parameter for composite wear-resistant plates. The thickness typically ranges from 3-20mm, with thicker layers required for more severe wear (e.g., 10-15mm for crusher liners and 5-8mm for conveyor chutes).

4. Base Material Strength: The composite wear-resistant plate's base material must support the wear-resistant layer. A base material with a yield strength of 345MPa or higher (e.g., Q345 steel) can meet the load-bearing requirements of most structures.

Application areas

Mining Industry: Crusher liners, ball mill liners, mining chutes, and dump truck beds (to protect against ore impact and friction);

Construction/Engineering Machinery: Excavator bucket teeth, loader buckets, and bulldozer track shoes (to protect against abrasion caused by sand, gravel, and mud);

Power Industry: Coal pipelines and hopper linings in coal-fired power plants (to protect against pulverized coal erosion);

Steel Industry: Steelmaking converter linings and rolling mill arch linings (to protect against abrasion caused by high-temperature steel billets);

Chemical Industry: Corrosive material conveying pipelines and mixing tank linings (using wear-resistant stainless steel for both corrosion and wear resistance).