XL-XAR 500E

XL-XAR-500E wear plates are developed specifically to cater the ardous needs of the core sector industry in the new millennium.

XL-XAR-500E is used 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 : 450 – 540 HB
• Yield Strength : 1250 Mpa
• Tensile Strength : 1600-1650 Mpa
• Elongation(%) : 9.5%
• Elements ( %) : C : 0.35 max, Mn:2.00 max, Ni: 1.0 max, Cr: 1.20 max, P : 0.015 max, S: 0.010 max, Si: 0.70 max, Mo: 0.60 max, B : 0.005 max.

NOTE: Plate is heat treatable, hence hardness 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-500E 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 plasma-cutting process is used in the interest of minimum distortion and micro structure. 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.