XL-NSM

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The manufactures of the world famous X’tralife Wear Plates now present the revolutionary “XL-NSM” wear plate developed specifically to cater the ardous needs of the core sector industry in the new millennium.

XL-NSM is used at the discretion of the purchaser for wearexposed structures, e.g excavating, mining and earthmoving machinery, truck dump bodies, conveying, crushing and pulverizing equipment, scrap presses and paving moulds. The plate is throughhard, and offers uniform wearresistance and stick resistance.

The processing and application techniques has to be decided depending on working conditions.

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. Tthe 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.

Plates of the XL-NSM 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 flamecutting 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.