Stellite 3 Alloy Products

Our most popular alloy with good all-around performance. Industry standard for general-purpose wear-resistance applications. Excellent resistance for many forms of mechanical and chemical degradation. Good resistance to impact and cavitation erosion. Ideally suited for a variety of hardfacing processes, and can be turned using carbide tooling.

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Product Introduction

Nominal Composition (Mass %) and Physical Properties

Co	Cr	W	C	Others	Hardness	Density	Melting Range
Base	30.5	12.5	2.3	Ni, Fe, Si	48-63 HRC	8.69 g/cm³ 0.314 lb/in³	1250-1290ºC 2280-2355ºF

Stellite cobalt-based alloys consist of complex carbides in the alloy matrix. They are resistant to abrasion, abrasion and corrosion and retain these properties at high temperatures. Its excellent wear resistance is mainly attributed to the unique inherent properties of the hard carbide phase dispersed in the CoCr alloy matrix.

The high carbon content of Stellite 3 increases the volume fraction of carbides, thereby improving its resistance to wear and solid particle attack. High tungsten content improves its high temperature performance. However, this makes it almost impossible for the alloy to be case-hardened without cracking, and it can only withstand very small impacts. It has excellent metal-to-metal wear resistance and prevents wear when combined with other Stellite alloys.

Stellite 3 has been used in valve seat inserts, needle holders, steel mill guide rollers, seam rollers, sleeves, bushings, bearing balls, wear pads, burner nozzles, palm guides, surgical scissor inserts and many others application.

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