Cobalt Alloy Washers

Cobalt Alloy Washers are a premium choice for applications requiring exceptional resistance to wear, galling, heat, and corrosion in the most challenging industrial environments. Often based on Stellite alloys, these washers are prized for maintaining their hardness and structural integrity at extremely high temperatures and in abrasive conditions. The unique matrix of cobalt, chromium, and tungsten/molybdenum provides superior resistance to thermal fatigue and erosion. Zeron Fastners is a specialized supplier and manufacturer in India, offering these high-performance wear resistant washers for use in sectors such as gas turbines, chemical processing valves, and nuclear power, ensuring reliable performance where ordinary fasteners fail.

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Cobalt Alloy Washer 334

Cobalt Alloy Washers Chemical Composition

Element Composition
Cobalt (Co) Balance
Chromium (Cr) 27.0 - 31.0
Tungsten (W) 3.5 - 5.5
Carbon (C) 0.9 - 1.4
Iron (Fe) 3.0 max
Nickel (Ni) 3.0 max
Silicon (Si) 2.0 max

Cobalt Alloy Washers Mechanical Properties

Property Value (Cast)
Hardness (HRC) 38 - 47
Tensile Strength (typical) 860 MPa
Density 8.44 g/cm³
Wear Resistance Excellent
Max Operating Temperature 815°C

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