Large stainless steel flanges will rust in general environment, mainly on any surface, free iron will rust and cause corrosion of stainless steel.Therefore, it must be cleared.Floating powder can generally be removed with dust.Some adhesives are so strong that they must be treated with embedded iron.

In addition to dust, there are many sources of surface iron, including cleaning with ordinary carbon steel wire brushes and shot peening with sand, glass beads, or other abrasives previously used on plain carbon steel, low alloy steel, or cast iron, or grinding of the previously mentioned non-stainless steel products near stainless steel flanges and equipment.Wire ropes, spenders and iron on worktable surfaces can easily become embedded or stained if no protective measures are taken for stainless steel flanges during loading or lifting.

Stainless steel flange rust removal method: the flange is immersed in hydrochloric acid, the principle is to reduce the rust into iron, but this method has a certain danger, hydrochloric acid is corrosive substances, harmful to human body, we must pay attention to not touch the human body when operating, and the good flange with alkali neutralization, do not directly touch the hand.