Chemical Resistant Cobalt Alloy Washers

Chemical Resistant Cobalt Alloy Washers are vital components used in chemical processing equipment, valves, and systems that frequently encounter highly corrosive media, often at elevated temperatures. Unlike many metallic alloys, cobalt alloys maintain excellent structural integrity and resist attack from a wide range of aggressive chemicals, thanks to their high chromium content which forms a stable protective passive layer. The inherent hardness of these alloys also provides superior wear resistance and non-galling properties, crucial for demanding fluid handling systems. Zeron Fastners is a trusted supplier and manufacturer in India, providing reliable, corrosion proof washers essential for ensuring the long-term safety and performance of equipment in severe chemical environments.

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Cobalt Alloy Washer 351

Cobalt Alloy Washers Chemical Composition

Element Composition
Cobalt (Co) Balance
Chromium (Cr) 20.0 - 35.0
Nickel (Ni) 3.0 - 25.0
Tungsten (W) 3.0 - 15.0
Carbon (C) 0.01 - 1.5
Iron (Fe) 3.0 max

Cobalt Alloy Washers Mechanical & Corrosion Properties

Property Value
Max Service Temperature Up to 900°C
Pitting and Crevice Resistance Very Good
Corrosion Rate (in Sulfuric Acid) Very Low
Wear Resistance Excellent
Galling Resistance Superior

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