S235JR Pre-Galvanized Carbon Steel Pipe

S235JR is the European standard carbon structural steel, equivalent to the national standard Q235B, carbon structural steel, S235JR is a kind of carbon steel.S235JR pre-galvanized pipes are generally made by first zincing the bare narrow strips through continuous hot-dip galvanizing equipment, processing them into galvanized strips, and then making the galvanized strips into galvanized pipes through welding.

S235JR Pre Galvanized Steel Pipe Specification

There are two main principles of galvanizing against rust:
1. by forming a thin film of zinc salts, this film can isolate the gases and liquids on the surface of the steel from the steel, thus preventing the steel from being oxidized and corroded.
2. Zinc is a more active metal than iron, so a primary cell can be formed on the surface of the steel, in which the zinc acts as the anode and the iron as the cathode. This primary cell structure prevents iron from being oxidized because the zinc will be oxidized before the iron, thus protecting the iron.
Thus, the principle of galvanizing against rust includes both electrochemical reactions and the formation of an oxide film.

S235JR Galvanized Pipe

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