Why Surface Treatment Matters for Steel Flanges

Why Surface Treatment Matters

Surface treatment is an important part of flange manufacturing. It helps protect steel flanges during storage, transportation, and operation.

Common surface treatments include:

• Anti-rust oil
• Black painting
• Yellow painting
• Hot-dip galvanizing
• Epoxy coating

The appropriate surface treatment depends on the application environment.

For outdoor or marine projects, galvanized or coated flanges provide better corrosion resistance than untreated carbon steel flanges.

Professional China steel flange manufacturers can recommend the most suitable surface protection based on project requirements.