QUAD 400 / 450 / 500 are high-quality abrasion-resistant (AR) steel plates developed for demanding industrial applications that involve high wear, impact, and friction. These plates are engineered to provide excellent hardness, durability, and weldability, making them suitable for heavy-duty uses across mining, construction, and material handling sectors. Key Characteristics: Hardness Range: QUAD 400: 360–440 Brinell Hardness Number (BHN) QUAD 450: 420–480 BHN QUAD 500: 470–530 BHN Wear Resistance: High resistance to abrasive wear and mechanical impact, ensuring extended component life. Mechanical Strength: Excellent tensile and yield strength to handle dynamic loads and rough usage. Weldability: Good weldable properties with appropriate preheating and post-weld treatment to maintain structural performance. Chemical Composition: QUAD AR plates are alloyed with: Carbon (C) Manganese (Mn) Silicon (Si) Chromium (Cr) Boron (B) Additional micro-alloys to enhance wear resistance and toughness Applications: Mining and earthmoving equipment (buckets, dump bodies, crushers) Construction machinery (excavator arms, bulldozer blades) Truck beds and liners Cement and aggregate plants Material handling systems (chutes, silos, conveyors) Shot blasting and recycling equipment Advantages: Improved life span under harsh wear conditions Reduced maintenance and downtime Lightweight yet high strength for better performance Consistent quality and hardness across the plate surface Manufacturing: QUAD plates are produced through quenching and tempering, which gives them a refined microstructure and uniform hardness for superior abrasion resistance and mechanical integrity. Sizes and Availability: Available in a range of thicknesses, widths, and lengths, QUAD plates can be cut and shaped as per customer specifications.