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SA1750CR Premium Chromium Carbide Overlay Plate
SA1750CR sets the industry standard for controlling abrasive wear. SA1750CR is a Chromium Carbide Overlay Plate consisting of a Hypereutectic Matrix with at least 50-60% Chromium Carbides metallurgically fused to an appropriate steel substrate. This large amount of hard chromium carbides allows SA1750CR to thrive in environments of extremely high abrasion.
The hardness of a SA1750CR chrome carbide overlay is a composite of the hard chromium carbides (1750 Vickers), with that of the tough, austenitic matrix. The macro-hardness of the overlay is 55-62 HRc, depending on the thickness of the carbide overlay.
The Chromium Carbide surface is comprised of a series of beads (3/4" to 1-1/2" wide) with many hairline cracks. These cracks are a natural phenomenon created during the overlay process. Cracks in the overlay are both desirable and necessary. They allow the overlay surface to be formed into complex shapes and to withstand impacts that cause other hard materials to fracture.
Iron Ore Chute Case History:
Out Performs Brand X Again
SA1750CR Premium Chromium Carbide Overlay Plate was installed as a liner in an iron ore sizing screen oversize outlet chute. This chute transports 12 to 20mm pieces of iron ore at a rate of 400 tons per hour. SA1750CR was put up against another brand of chromium carbide overlay plate to see which would last longer.
After 100 days the Brand X Plate was showing heavy wear and needed to be replaced. The SA1750CR liner was showing minor wear and did not need replacing.
SA6000® is the new future of overlay wear plate. The patented microstructure of SA6000 is highly refined with tightly packed complex carbides. This fine grain microstructure reduces the propagation of cracks, which results in not only superior protection from abrasion, but also unheard of impact resistance!
SA2000® is a specially formulated complex carbide overlay plate designed to generate a high concentration of small primary carbides greatly improving wear resistance over conventional chromium carbide alloys. The refined microstructure containing harder complex carbides provides greater wear resistance and improved toughness. The inert refractory carbides present also increase the temperature resistance and corrosion resistance. Up to double the service life of standard chromium carbide overlay plate.
SA-MCCTM was developed to satisfy the various application needs of our customers. SA-MCC Multiple Complex Overlays can be custom blended to provide material characteristics needed for specific wear resistivity. For example, if the application requires increased impact resistance and temperature rating, the blend of complex carbides would have higher levels of Molybdenum and Niobium.
SAS Global Engineers a smooth surface finish on all SureAlloy® Premium Weld Overlay Products. The standard SureAlloy® surface finish can be blanchard ground to provide an even lower coefficient of friction for applications with heavy material hang-up issues. This premium surface is known as RapidFlow® Premium Surface Carbide Overlay Plate. The surface is ground and polished to a 0.2 Ra Micro-Meters finish. This finish is smoother than a stainless steel 304 with 2B finish.