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.
AR400 Q&T Wear-Resistant Steel Plate
AR400 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 excellent protection against abrasion under severe working conditions, while maintaining resistance to impact and deformation.
- Heat-treated steel plate through quenching and tempering.
- Hardness in the 400 HB (Brinell hardness) range.
- Superior resistance to abrasive and friction wear.
- Good balance between surface hardness and internal strength, providing improved toughness against impact.
- Suitable for processing by cutting, welding, and forming in a variety of industrial applications.
- Ideal for environments where high wear resistance is required without compromising structural integrity.
- Extreme wear resistance: outstanding durability in severe abrasion conditions, reducing frequent replacement and maintenance.
- Good impact resistance: despite high hardness, it retains excellent energy absorption, making it suitable for dynamic loads and shocks.
- Longer component life: high resistance to wear and impact extends service life and reduces long-term operating costs.
- Processing flexibility: can be cut, welded, and formed without compromising performance, supporting a wide range of industrial uses.
- Mining: liners and parts exposed to high abrasion (crushers, mills, drilling/excavation wear parts).
- Construction: heavy equipment components (buckets, excavator teeth, shovels, material-handling attachments).
- Bulk material handling: conveyors, augers/screws, loaders, and abrasive bulk handling systems.
- Agriculture: cutting blades, planter teeth, and tools exposed to severe wear.
- Energy: components for power generation equipment and other parts requiring high wear resistance under extreme operation.
Element | Min. (%) | Max. (%)
--- | --- | ---
Carbon (C) | 0.18 | 0.30
Manganese (Mn) | 0.90 | 1.30
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 | AR400 Q&T
--- | ---
Brinell hardness (HB) | 400 HB
Yield strength (MPa) | 550
Tensile strength (MPa) | 800
Elongation (%) | 12
Impact (J) | 30
Toughness (J/cm²) | 35
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-400
EN 10025-4 | S460Q
JIS G3106 | SM570
ISO | AR400 Q&T
AR400 Q&T is an ideal option for industrial applications that require superior wear and abrasion resistance while maintaining good impact toughness. Thanks to its quench-and-temper heat treatment, it provides an effective balance between surface hardness and internal strength. Its processing versatility and durability make it a cost-effective, high-performance solution for extreme environments in mining, construction, material handling, agriculture, and energy.