Chrome Boride Hardfacing
Franklin Miller hardfacing is an ideal solution for applications with high concentration of abrasives. This fused coating is capable of withstanding tough abrasion and greatly extending service life.
A heavy coating of chrome boride in a nickel-based matrix is fused to working surfaces at close to 2000 degrees F. This hardfacing is fused to the base metal with a unique, precision process. The result is a surface 15-20 times more abrasion-resistant than stainless steel which can’t be scratched by a normal file.
The chrome boride consists is a highly corrosion resistant, nickel with ultra-hard chrome boride particles dispersed within it. The average hardness of the composite material is approximately Rc60. The abrasion resistance as demonstrated on a standard Ottawa sand abrasion tester has a factor of 10 improvement as compared to hardened steel. Additionally, this coating is capable of withstanding tough abrasion without causing embrittlement of the base metal. As a result, surfaces coated with chrome boride hardfacing often have a substantial increase of life in abrasive service even as compared to heat-treated alloy steel.