High Hardness Wear-Resistant Steel Plate

High Hardness Wear-Resistant Steel Plates are high-performance wear-resistant steel plates produced through heat treatment processes such as quenching and tempering; they feature extremely high surface hardness and exceptional resistance to abrasion. Their typical hardness levels generally exceed HBW 400–600, enabling them to maintain stable structural integrity under conditions involving severe impact and high abrasion.

These steel plates primarily achieve their performance by optimizing the balance between material hardness and toughness. This allows them to withstand the rigorous operating environments found in mining machinery, construction vehicles, cement production equipment, and steel metallurgy, thereby significantly extending service life and reducing maintenance costs.

Key Features:

High surface hardness and excellent wear resistance

Good impact resistance

Strong weldability and machinability

Maintains structural stability in high-wear environments

Consequently, these steel plates are widely utilized in the manufacturing of wear-resistant components for the mining industry, construction machinery, port equipment, and heavy industrial sectors.

High Hardness Wear-Resistant Steel Plates are mainly divided into four categories based on HBW≥400: Chinese NM series, imported wear-resistant steel, composite wear-resistant plates, and high manganese steel (Mn13), covering all scenarios from general wear to extreme wear resistance.

Chinese NM series (National Standard GB/T 24186)

Composite wear-resistant plate (welded overlay/bimetallic cladding)

Structure: Low-carbon substrate (Q235/Q345) + high-chromium wear-resistant layer (Cr 18%-30%), metallurgically bonded.

Hardness: Wear-resistant layer HRC58-65 (approximately HBW600-750), substrate maintains toughness.

Selling points: Wear resistance 15-25 times that of ordinary steel, strong impact resistance, weldable and cuttable, high cost-performance ratio.

Applications: Abrasive wear, low to medium impact conditions, such as scraper conveyors, silo liners, wear-resistant pipes.

High manganese steel (Mn13/ZGMn13)

Hardness: Initial HB200-250, hardens to HB550+ after impact.

Core: Increases wear resistance with impact, excellent impact resistance.

Applications: High-impact, low-abrasion environments, such as crusher jaw plates, ball mill liners, and construction machinery buckets.

Core Specifications Overview (Dimensions / Material / Standards)

1. Dimensions

2. Materials and Standards

Materials: Low-carbon multi-element alloys (NM series), high-chromium alloys (composite plates), high-manganese steel (Mn13).

3.Standards:

Domestic: GB/T 24186-2009 (High-strength wear-resistant steel plates for construction machinery).

Imported: Complies with EN, DIN and other standards, and is equivalent to the NM series hardness.