XL-XAR 400E

XL-XAR-400E wear plates are developed specifically to cater the ardous needs of the core sector industry in the new millennium.

XL-XAR-400E is used at the discretion of the purchaser for wear -exposed structures, e.g excavating, mining and earth- moving machinery, truck dump bodies, conveying, crushing and pulverizing equipment, scrap presses and paving  moulds.

The material is having through hardness and wearresistance.

Physical Properties :

• Hardness : 350 – 420 HB
• Yield Strength : 1070 Mpa
• Tensile Strength : 1300 Mpa
• Elongation(%) : 9.2%

NOTE: Plate is heat treatable, hence can change on heating.

The products made of this steel are suitable for cold bending provided, that consideration is given to the high hardness. The formability of steel decreases with increasing hardness-this has to be kept in mind when forming. The forming must take place at a slow and steady rate, the cut edges must be deburred and the plates heated, if necessary, prior to the forming. A final stress-relieving is not necessary for this steel.

Inspite of its high wearresistance, the steel exhibits good machinability if sufficiently heavy machine-tools and sharp carbide-tipped tools are used. The feed rate and cutting speed have to be adjusted to the high hardness of the material.

Plates of the XL-XAR-400E grade receive the required properties as a result of austenitizing and follow-on quenching in special facilities. The heat treatment depends on the chemical composition and the product thickness to avoid hardness losses, the steel must not be heated above 250°C.

Preferably the flame-cutting process issued. For small product thicknesses, however ,the plasma cutting process is used in the interest of minimum distortion. Preheating is not normally necessary when flame-cutting thicknesses up to around 10mm. However, if the work piece temperature is below + 5°C, or the cut edges are to be cold-formed in the course  of  further  processing,  preheating  to  about  150°C  should  be  considered  in  the  interest  of  cold  cracking resistance. If due consideration is given to the general rules for welding, this steel is weldable both manually and automatically. To prevent cold cracking in the welded joints only welding consumables giving welds of very low hydrogen content should be used. To avoid preheating, use XL-HTM electrode for joining. The working temperature should not exceed 250°C. For special fabrication, contact WRTPL. 

•  Standard Size : 6000×1500/2000/2500
• Thickness : 6,8,10,12,15, etc.