Quenched and Tempered (Q&T) Alloy Steel Plate
Quenched and tempered (Q&T) alloy steel plates are manufactured to provide an optimal combination of hardness and strength, essential qualities for applications where strong impacts and significant wear are expected.
AR450 Q&T Wear-Resistant Steel Plate
AR450 Q&T (Quenched & Tempered) steel is a wear-resistant steel plate that is heat-treated through quenching and tempering to optimize hardness and toughness. It is designed to provide higher resistance to wear and abrasion while maintaining excellent impact resistance and high durability under severe working conditions.
- Heat-treated steel plate through quenching and tempering.
- Hardness in the 450 HB (Brinell hardness) range.
- Exceptional resistance to abrasive and friction wear.
- High resistance to impact and dynamic loads due to the balance between surface hardness and internal toughness.
- Suitable for processing by cutting, welding, and forming, making it versatile for industrial applications.
- Ideal for environments requiring high wear resistance without sacrificing structural integrity.
- Superior wear resistance: exceptional durability in severe abrasion conditions, reducing replacement and maintenance frequency.
- High impact resistance: despite high hardness, it retains excellent energy absorption for shock and dynamic forces.
- Longer component life: the hardness/toughness combination extends service life and reduces long-term operating costs.
- Processing versatility: can be cut, welded, and formed, supporting a wide range of industrial applications.
- Mining: liners and wear parts for crushers, mills, drilling, and excavation equipment.
- Construction: heavy equipment parts such as buckets, excavator teeth, shovels, and material-handling tools.
- Bulk material handling: conveyors, augers/screws, loaders, and abrasive bulk handling systems.
- Agriculture: cutting blades, planter teeth, and other tools exposed to severe wear.
- Energy: parts and components for power generation equipment and turbines requiring high wear resistance under extreme operation.
Element | Min. (%) | Max. (%)
--- | --- | ---
Carbon (C) | 0.20 | 0.30
Manganese (Mn) | 0.90 | 1.50
Silicon (Si) | 0.20 | 0.60
Sulfur (S) | 0.01 | 0.03
Phosphorus (P) | 0.01 | 0.04
Chromium (Cr) | 0.50 | 0.80
Nickel (Ni) | 0.30 | 0.60
Molybdenum (Mo) | 0.10 | 0.20
Property | AR450 Q&T
--- | ---
Brinell hardness (HB) | 450 HB
Yield strength (MPa) | 600
Tensile strength (MPa) | 850
Elongation (%) | 10
Impact (J) | 25
Toughness (J/cm²) | 30
Thickness (mm) | Width (mm) | Length (mm)
--- | --- | ---
6 – 100 | 1,500 – 3,000 | 3,000 – 12,000
6 – 50 | 1,000 – 2,500 | 2,500 – 6,000
8 – 75 | 1,200 – 2,000 | 3,000 – 8,000
Standard | Equivalent grade
--- | ---
ASTM A514 | T-450
EN 10025-4 | S460Q
JIS G3106 | SM570
ISO | AR450 Q&T
AR450 Q&T is ideal for demanding industrial applications requiring high resistance to wear, abrasion, and impact. Its quench-and-temper heat treatment provides an effective combination of hardness and toughness suitable for extremely harsh working conditions. Thanks to its durability, it helps reduce maintenance and replacement costs and is a reliable, cost-effective solution for mining, construction, material handling, agriculture, and energy.