The chemical properties of the chromium oxide coating are very stable, insoluble in acids, alkalis, salts, and various solvents. It has excellent resistance to medium immersion corrosion and high-temperature erosion of corrosive gases such as H2S and SO2. It is stable to the atmosphere, fresh water, seawater, and light, but soluble in hot sodium bromide salt solutions. Chromium oxide coating has good hydrophilicity, forming a uniform water film on the surface of the coating. Physical properties of chromium oxide

The advantage of CrO coated stainless steel mechanical seal ring are as belows:

Corrosion resistance: The CrO coating provides an additional corrosion-resistant layer, which helps protect stainless steel materials from chemical corrosion, especially when used in harsh chemical environments.

Wear resistance: The coating may enhance the wear resistance of the sealing ring, which helps to extend the service life of the mechanical seal and reduce the frequency of maintenance and replacement.

Reduce friction coefficient: Coatings may help reduce friction between the sealing ring and the corresponding sealing surface, which can reduce energy loss and improve mechanical efficiency.

Good sealing performance: The CrO coated sealing ring is designed to achieve a good sealing effect, preventing the leakage of liquids or gases, which is crucial in pumps, valves, and other rotating equipment.

High temperature endurance: The coating may enhance the performance of the sealing ring under high-temperature working conditions, which is particularly important for mechanical seals used in high-temperature environments.

Material compatibility: CrO coating may improve compatibility with different process fluids, enabling it to resist corrosion from various chemicals, including acids, bases, and solvents.

Reduce maintenance: Coatings may reduce the maintenance requirements for sealing rings, as coatings can reduce wear and corrosion, thereby reducing the need for regular inspections and maintenance.

Improving system reliability: By reducing leakage and enhancing sealing performance, CrO coated sealing rings help improve the reliability and safety of the entire system.

Environmentally friendly: The use of CrO coating may reduce environmental risks caused by seal failure, as it reduces the leakage of chemicals into the environment.