astm standard for galvanized steel pipe
from web site
ASTM A53 is the industry standard for carbon steel pipe, used widely in building structures and bridges. This specification covers four distinct grades of steel pipe: Grade A is the lowest and generally used for its ability to withstand relatively low pressure.
Grade B is the chosen grade for systems requiring robust pressure levels;
Grade X is the ultimate level of protection and is frequently used in applications which involve extreme pressure.
https://www.shenzhoutongsteel.com/erw-line-pipe.html offers an intermediate pressure-resistance capability, which is split into two classes: Class 1 for welded pipes and Class 2 for seamless ones. The most popular type of steel pipe for construction projects is the black or hot-dipped galvanized version, which can be cut to any length from ½-inch to 4 inches in diameter. The manufacturing process of this pipe involves three distinct methods - seamless, electric-resistance (ERW), and doubleSubmerged Arc Welding (DSAW). The former begins by passing hot steel through a die and over a mandrel, to produce a continuous pipe. For electric-resistance welding, hot steel is funneled through numerous rollers until a continuous pipe is formed. For DSAW, the same process is used but the pipe is then welded along its length with an arc welder. As aforementioned, it is the black or hot-dipped variety of galvanized steel which is most popular in construction. It provides a wide range of sizes between ½-inch and 4 inches in diameter, and can be tailored to any desired length.
Grade B is the chosen grade for systems requiring robust pressure levels;
Grade X is the ultimate level of protection and is frequently used in applications which involve extreme pressure.
https://www.shenzhoutongsteel.com/erw-line-pipe.html offers an intermediate pressure-resistance capability, which is split into two classes: Class 1 for welded pipes and Class 2 for seamless ones. The most popular type of steel pipe for construction projects is the black or hot-dipped galvanized version, which can be cut to any length from ½-inch to 4 inches in diameter. The manufacturing process of this pipe involves three distinct methods - seamless, electric-resistance (ERW), and doubleSubmerged Arc Welding (DSAW). The former begins by passing hot steel through a die and over a mandrel, to produce a continuous pipe. For electric-resistance welding, hot steel is funneled through numerous rollers until a continuous pipe is formed. For DSAW, the same process is used but the pipe is then welded along its length with an arc welder. As aforementioned, it is the black or hot-dipped variety of galvanized steel which is most popular in construction. It provides a wide range of sizes between ½-inch and 4 inches in diameter, and can be tailored to any desired length.
