General Information XAR 400 is a high wear resistance of the special structural steel, in general, the higher the hardness, wear resistance is higher. This wear-resistant special structural steel, the average hardness of 400HB, after quenching, or quenching and grown up, have a good martensitic - bainitic microstructure. Molybdenum, nickel, boron alloy added to ensure uniform texture throughout the thickness direction.
Uses for wear - exposed structures, such as prospecting and bulldozers protective plate, shell wall. Support or reinforcement plate; truck turned body cutting board. Wear plate; hybrid components and transmission components, chute channel, display, machine tools, co-mill crushers, scrap briquetting presses, blade, paving grinding and agricultural machinery.
Chemical composition (%)
(Max) C Si Mn P S Cr Mo B
≦ 0.20 ≦ 0.80 ≦ 1.50 ≦ 0.025 ≦ 0.010 ≦ 1.00 ≦ 0.50 ≦ 0.005
Hardness (at room temperature) 360 to 440HB
Brinell hardness is determined according to ISO6506 standards. Hardness should be about 1mm below the surface is measured.
Mechanical properties
(15mm thick steel plate typical parameters)
*) 1MPa = 1N/mm2 carbon equivalent CET (%) CET = C + (Mn + Mo) / 10 + (Cr + Cu) / 20 + Ni/40 0.27
Carbon equivalent CE (%) CE = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15 0.42
Yield Strength (Mpa) *) 1050
Tensile strength (MPa) *) 1250
Elongation A (%) 12
Horizontal deflection bending test specimen bending radius ≥ 2x1 (t = specimen thickness; bend angle: 18000)
Minus 40 ℃, the Charpy V-- longitudinal sample (J) on the notched impact energy 30
Existing stock steel

● Standard size