T138 is a iron-based steel overlay wear plate solution with a unique proprietary chemical composition designed to withstand moderate direct impact and mild-to-moderate wear environments.

T138’s overlay is a chromium carbide alloy well suited for tough jobs which demand more protection than what any steel alone can offer. T138 wear plate offers a low friction, impact-resistant surface which protects against abrasion and wear, while maintaining a hardness similar to that of annealed steel.

T138 consistently rates between 52 – 54 HRc for hardness, and only loses 0.20 g (+/-0.03) on ASTM G65-04 Procedure A mass loss test. This amazing product is only at the beginning of Trimay’s product line, yet it boasts the same low drag coefficient of 0.185 (AR plate is 0.234). Trimay’s® low coefficient of friction keeps materials moving!

It is economical to use T138 for areas exposed to moderate wear and impact, which can benefit from Trimay’s® smooth overlay. T138 wear plate is often used as a liner for shovels, buckets and heavy haulers to stop carryback.

As a wear plate solution, T138 can be applied on most types of steel (please see the most commonly used substrates on the left). T138 wear plate is applied using Trimay’s® proprietary Submerged Arc Bulk Overlay Welding Process and can be cut and fabricated to specification. It can be rolled or formed by press brake and cut via plasma arc or water jet.

It cannot be flame cut. Formability is dependant only on thickness and whether weld position is on the inner or outer diameter. For applications requiring less precision, T138 overlay material can be removed by means of carbon arc gouging.

These overlays are non-machinable and, if necessary, surface finishing can be done by grinding or E. D. M. T138 wear plate can be installed by plug or fillet welding, bolted or fabricated with inserts for installation.

Any weld seams should be overlaid with Trimay’s® TWP56w wire to ensure even wear on the plate and weld seam.