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SA7150CR is a Premium Chromium Carbide Overlay Plate consisting of a Hypereutectic Matrix with 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.

SAS’ metallurgists have formulated the chemical composition of SA1750CR in a manner to develop an austenitic matrix rich in M7C3 Primary Chromium Carbides. In addition to the high volume fraction of M7C3 carbides, SAS’ engineering team developed a proprietary manufacturing technique that provides a constant cooling gradient throughout the welding process, allowing SA1750CR to have a uniform deposit and penetration line.

Common Applications:

     •     Mobile Mining Equipment Liners

     •     Longwall Pan Liners

     •     Crusher / Breaker Liners

     •     Crusher Screens

     •     Chute / Hopper Liners

     •     Piping Systems

     •     Dredging Suction Pipes

     •     Coal Pulverizer / Mill Wall and Deflector Liners

     •     Rotating Vane Wheels

     •     Journal Liners and Tire Shields

     •     Burner Barrels and Nozzles

     •     Muller Bottoms

     •     Raw Mill Liners

     •     Coke Injection Line Elbows

     •     ID Fan Blades and Housing Liners

     •     Auger Flights

     •     Classifier Blades

     •     Dust Handling Systems


•     Total Chromium Carbide content of 50% - 60%

•     Macro-hardness of 55-62 HRc

•     Smooth surface finish: Low coefficient of friction

•     Remains abrasion resistant up to 1100 ˚F / 594˚C

•     Not subject to seam erosion

•     Can withstand continuous moderate impact

•     Will last 30 to 1 over mild steel / 5x – 6x over heat treated AR400