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WD-Co6

PRODUCT

Introduction

WD-Co6 is the most widely used of the wear resistant cobalt-based alloys and exhibits good all-round performance. It is regarded as the industry standard for general-purpose wear resistance applications, has excellent resistance to many forms of mechanical and chemical degradation over a wide temperature range, and retains a reasonable level of hardness up to 500°C (930°F). It also has good resistance to impact and cavitation erosion. WD-Co6 is ideally suited to a variety of hardfacing processes and can be turned with carbide tooling. Examples include valve seats and gates, pump shafts and bearings, erosion shields, and rolling couples. It is often used self-mated.

Common Name: Stellite® 6, Polystel® 6, Hoganas 2537

Chemical Composition(%)

C	Si	Mn	Mo	Cr	W	Ni	Fe	Co	Others
1.2	1.0	≤1.0	≤1.0	29.0	4.5	≤3.0	≤3.0	Bal	<1.0

Deposit Characteristic

Abrasion Resistance	Good
Impact Resistance	Good
Corrosion Resistance	Good
Hardness	HRC 40-46
Deposit Layers	2 Max
Deposit Cross Checks	* Possible
Magnetic	No
Hot Wear Hardness	Good
Machinability	Carbide Tools