Why RPM Overlay Plate? |
Sample Applications |
Abrasion/Hardness Specifications |
Why RPM overlay plate?
“Stringer” Bead Composition Determines Wear Resistance
The percentage of chromium carbide and the overall overlay
composition determine a wear plate’s resistance to abrasion and impact. A
common misconception is that material hardness determines resistance to abrasion;
however, resistance to abrasion is determined first by the carbide structure
of the material, then by hardness. RPM uses “stringer” bead rather than
oscillated bead overlays to support the formation of carbides in the overlay
— a process that helps to lengthen wear life and ensure consistency throughout
the wear surface.
Customizable to Meet Your Needs
There are a wide variety of wear plates available and
each performs well in specific wear environments. It’s important to understand
your wear environment and the differences between materials before choosing
your wear plate. All wear plate manufacturers should make material composition,
hardness, tensile strength, and abrasion test data available to you prior to
purchase. Generally speaking, carbon steels such as AR400 are well suited to
high impact and moderate sliding-abrasion environments, whereas RPM overlay
plate is well suited to extreme sliding abrasion and moderate-impact
environments. However, RPM overlay plate is fully customizable to your needs:
Base Steel Thickness - Thin (lightweight) or Thick (longer wear life)
A thinner base steel can help shed weight without compromising resistance to
abrasion, and is commonly used in loading applications such as dragline buckets;
whereas, a thicker base material allows for a multiple-layer overlay that
offers considerably longer wear life, and is commonly used on dozer faces.
Easily Formable and Low Coefficeint of Friction
plate is easily formable due to its mild steel base, and is easily welded
without preheating. A cross-checked crack pattern on the wear surface relieves
stresses and supports ductility—which is necessary when forming the plate to
curved shapes. Due to its high percentage of chromium carbide, RPM wear
plate has a very low coefficient of friction and will polish to a mirror finish;
thus, increasing lubricity and ultimately, material flow—this is especially
important in prevention of buildup in coal chutes and of carryback on dozer
We Want to Solve Your Wear Problems!
RPM is committed to solving our customer's wear problems. Solving wear problems
is our primary business. Let us know about your particular application. We
will partner with you to find the right solution.
Contact Us today.