Guidelines for hardfacing steels - specialmetals.ir
In principle, weld hardfacing onto these steels is not problematic from the point of view of the Stellite deposit. They are usually welded using a low preheat temperature (50-150C) followed by a slow cool in vermiculite. The difficulty with austenitic steels is that during hard facing, carbon can diffuse from the Stellite
Hardfacing Product and Procedures Selection
H-535/L-60 (High Alloy Procedure) Description Weld deposits are partly ferritic and partly bainitic. Harder deposits have higher wear resistance. Applications For building up worn carbon and low alloy steel parts prior to hardfacing. Sometimes used as a final overlay on applications which require subsequent machining. Typical Applications:
Hardfacing Stainless Steel - Valve Magazine
This material is a cobalt-chromium-tungsten alloy with about 1% carbon. A carbon level this high results in a microstructure consisting of a network of carbide particles in a soft matrix. The hardness can range from 35-45 Rockwell Hardness (HRC) depending on the application method and the amount of dilution (the amount of mixing with base metal).
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