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Surface Welding Powders Combat Impact and Abrasive Wear

Höganäs provides Rockit 606 for laser cladding and Rockit 706 for the plasma transferred arc welding to prolong component lifetime in oil and gas, mining and construction, and other tough wear environments.

Posted: October 22, 2019

Iron-based Rockit 606 and 706 materials from Höganäs have a martensitic structure with finely dispersed vanadium carbides that gives them excellent wear characteristics and a consistent high hardness, together with a good impact resistance. They have excellent welding properties and achieve a smooth deposit. Field tests of these materials applied on wear plates for dozer blades show that cladding material costs can be reduced by 30 percent while maintaining the same lifespan achieved with other systems.

Combatting impact and abrasive wear is a common industry challenge. If components are not protected properly, equipment downtime and short product lifecycles are costly. However, impact wear resistance of current industry practices tends to be low due to material brittleness. New Rockit® 606 and Rockit 706 surface welding powders from Höganäs AB (Höganäs, Sweden) combat impact and abrasive wear and prolong component lifetime in tough wear environments, such as oil and gas, mining and construction, and other heavy fabrication applications. “These materials show excellent performance in challenging applications and overcome problems of existing industry practices,” said Hans Keller, the president of product area surface and joining technologies at Höganäs. These powders feature a unique combination of high impact and abrasive wear resistance, and are robust to process variations.

“Iron-based Rockit 606 and 706 materials have a martensitic structure with finely dispersed vanadium carbides that gives them excellent wear characteristics and a consistent high hardness, together with a good impact resistance. They have excellent welding properties and achieve a smooth deposit,” noted Keller. “Field tests of these materials applied on wear plates for dozer blades show that cladding material costs can be reduced by 30 percent while maintaining the same lifespan achieved with other systems,” explained Martin Lohrman, an application specialist at the Höganäs ArcX Center in the U.S. “Rockit 606 is recommended for laser cladding, while Rockit 706 is the suitable choice for the plasma transferred arc (PTA) welding process.” Rockit is part of an extensive portfolio of surface coating solutions that grew rapidly through Höganäs’ acquisition of the Surface Technology division of H.C. Starck GmbH (Laufenburg, Germany) in 2018. “This builds on the success of our previously-launched Rockit 401 material, a sustainable system to replace hard chrome plating that has quickly become a standard in the mining and construction industry,” added Keller.

North American Höganäs Co., 111 Hoganas Way, Hollsopple, PA 15935-6416, 814-479-3500, Fax: 814-479-2003, info@nah.com, www.hoganas.com.