Cobalt Alloy Washers (High-Load)

Cobalt Alloy Washers are specifically designed to perform in the most severe service applications, offering exceptional resistance to mechanical wear, high temperatures, and chemical degradation. Alloys, typically from the Stellite family, are inherently hard and maintain their compressive strength and dimension even under high load and extreme heat conditions, preventing washer deformation and subsequent loss of bolt preload. These wear resistant washers also exhibit superior anti-galling properties, ensuring the structural integrity of critical joints in industries like power generation, oil and gas, and aerospace. Zeron Fastners is a trusted supplier and manufacturer in India, providing reliable, high-integrity cobalt alloy washers for mission-critical assemblies.

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Cobalt Alloy Washer 346

Cobalt Alloy Washers Chemical Composition

Element Composition
Cobalt (Co) Balance
Chromium (Cr) 29.0 - 32.0
Tungsten (W) 12.0 - 14.0
Carbon (C) 2.0 - 2.5
Iron (Fe) 3.0 max
Nickel (Ni) 3.0 max
Silicon (Si) 2.0 max

Cobalt Alloy Washers Mechanical Properties

Property Value
Hardness (HRC) 49 - 58
Compressive Yield Strength 2000 MPa
Erosion Resistance Excellent
Coefficient of Friction Low
High-Temperature Stability Superior

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