SMS 206B are series of boride diffusion coatings on a wide variety of steels, nickel and cobalt alloys. The coatings are characterized by high hardness, with excellent adherence. Typical applications are refinery pumps, valves, piping,spray nozzles, dies and rollers. Due to the nature of the application process, complex shapes and small inside diameters can be coated.

Below are given some characteristics of boride coatings on various substrate :

BASE MATERIAL	HARDNESS ( KNOOP )	THICKNESS ( MILLS )
CARBON STEEL	1650	1 - 5
410 STEEL	1650 - 1800	1 - 2
STELLITE	1800 - 2200	.5 - 1
INCONEL 625	1600	.5 - 2
300SERIES STEEL	1800	.5 - 1

For more information on SMS 206B or our other unique surface improvement systems please call us at : 565 - 946 - 7472 / Fax us at : 562 - 946 - 8182 or email us at: info@surfacemodificationsystems.com.