Black Painting Treatment for Pipe Fittings

Black painting is a common surface treatment for carbon steel pipe fittings. After manufacturing, the fittings are cleaned by sandblasting or shot blasting to remove rust, oil, and scale from the surface. Then, a layer of black anti-rust paint is sprayed evenly onto the fittings. This coating helps protect the products from corrosion, moisture, and damage during storage and transportation.

Black painted pipe fittings are widely used in oil, gas, water, and industrial pipeline systems. The treatment also improves the appearance of the fittings and provides a clean, professional finish for export and construction projects.