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Wear Resistant products from Surface Engineering are available in a large variety of forms. The most common for hardsurfacing are welding electrodes, wires, bare rods, and powders. However, castings and wrought products made from the different alloys are quite popular as well. Depending on the economics and your application capabilities, the best choice for a product can be made.
Wear Resistant Products & Services
Carboride Hardfacing Iron Base Alloys
Castings Nickel Alloys
Ceramics Thermal Spray Products
Cobalt Alloys Thermal Spray Services
Cryogenic Processing Tungsten Carbide Composites
Bare Rods Powders
Electrodes Wrought Products
Cast, sintered, or tube rods for hardsurfacing are available from .045" to 1/2" diameters for Oxyacetylene or TIG (Tungsten Inert Gas) welding. The manufacturing method depends mainly on the product, diameter, and welding process required.
Most of the hardfacing alloys can be used to produce castings of all sizes. Castings are manufactured via Investment, Static, Sand, Shell, Ceramic, Centrifugal, and Lost Foam processes. Castings offer value when the wear resistant component is small or difficult to hardface, when the tolerance for wear is greater than the thickness capability of hardsurfacing or the labor and processing costs for manufacturing the hardfaced component exceed those of casting.
Most of the products listed in our literature are available in the form of welding electrodes. The available sizes range from 3/32" to 1/2" diameter. Some of the electrodes are manufactured by putting the allow elements into the core of a steel tube and subsequently coating the tube. Other electrodes are manufactured using a low alloy rod and extruding coating containing additional alloying elements which will produce the final chemistry for welding.
Surface Engineering also provides Dental Ingots of various alloys, sizes, and shapes. Rectangle, square and round hipped rod to the saw tipping industries, ceramic and tungsten carbide tiles of various sizes and shapes, cast wear pads containing tungsten carbide in various alloy matrix', Certified Master Alloys and remits, including scrap alloys to the casting industry, and any other specialty product that may be required to meet the demands of the industry.
Powdered metal alloys, ceramics, and composites are available in virtually all size ranges for the array of application methods utilized in industry. Surface Engineering supplies both gas and water atomized powders for Spray/Fuse and PTA applications as wall as Clad, Spray Dried, Crushed, and Sintered powders for the various Thermal Spray methods. Mesh sizes are tailored to meet application equipment specifications, providing for consistent weldability, spray characteristics, and deposit quality.
Solid and Metal or Flux-Cored Wires are available from .035" to 1/8" diameter for MIG (Metal Inert Gas), TIG, Submerged Arc (SMAW), and Open-Arc welding (OAW). The alloys listed in our literature are not available in all wire forms. However, since this is a very efficient method for hardfacing, is it often a very good idea to use the available wire form for the alloy required.
The only common hardfacing alloy available in the form of wrought plate or bare stock is the Cobalt base alloy #6. However, virtually all corrosion resistant and aerospace alloys are available in various diameter of bar stock or plate thickness.
Potentially occurs in:
Low Stress Agricultural equipment, handling minerals
High Stress Comminution equipment
Gouging Earth moving, mineral benefication
Polishing Handling solids containing mineral fillers
Solid Particle Sandblast equipment
Fluid Impingement Pipe elbow, rain on aircraft
Cavitation Pumps, mixing impellers, ultrasonic devices
Slurry Erosion Oil drilling, pumping, mineral benefication
Fretting Bolted-together machine components
Adhesive wear Gears, cams, slides, bushings
Seizure Dry sliding systems
Galling Valves, sliding surfaces, bushings
Oxidative wear Hard-metal sliding systems
Surface Fatigue -
Pitting Gear teeth, rolling element bearings
Spalling Surface-treated parts
Impact Riveting tools, hammers
Brinelling Static overload or rolling element bearings