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The difference between push steel elbow and socket welding steel elbow
Push-made steel elbow: The process of pushing steel-made steel elbows with machinery + mold inner tube + intermediate frequency heating method, but later it is probably difficult to control the inner and outer wall thickness, and it is rarely used in practice. Socket welded steel elbows: most are...Read more -
The difference between HFW steel pipe and ERW steel pipe
The difference between ERW (straight seam electric resistance welded) steel pipe and HFW (high frequency welded) steel pipe is mainly the principle. As the name implies, resistance welding is a method in which pressure is applied through electrodes after the weldment is combined, and the resistan...Read more -
Comparison of galvanized spiral steel pipe, straight seam steel pipe and galvanized seamless steel pipe
The production process of galvanized straight seam welded pipe is relatively simple. The main production processes are high frequency welded straight seam steel pipe and submerged arc welded straight seam steel pipe. Straight seam pipe has high production efficiency, low cost, and rapid developme...Read more -
What problems should be paid attention to when connecting galvanized steel pipes
The specification of the connection method of galvanized steel pipe depends on the type of connection method. Generally, there are several types, such as flange connection, clamp groove connection, and welding. In the actual connection of galvanized steel pipes, welding is the most commonly used ...Read more -
Heat treatment of steel pipe fittings
1. The steel pipe fittings formed by cold working are subjected to heat treatment for stress relief after forming. 2. For steel pipe fittings formed by thermal processing, heat treatment should be carried out for chrome-molybdenum steel and stainless steel materials; for carbon steel materials, h...Read more -
The service life of galvanized steel pipe fittings
The service life of galvanized steel pipe fittings is long, but the service life is different in different environments: 13 years in heavy industrial areas, 50 years in oceans, 104 years in suburbs, and 30 years in cities. The yellow water is directly caused by galvanizing. Due to the threaded co...Read more