The standard name of the hot -dip galvanized steel pipe product is "low -voltage fluid transportation of hot -dip galvanized welding steel pipe". It is the inner and outer hot -dip galvanized inner and outer heat galvanized on the basis of welded steel pipes, so that the inner and outer wall of the steel pipe has a zinc layer, which greatly improves the anti -corrosion performance of the steel pipe. Real about 20 times that of ordinary steel pipes. The hot -dip galvanized steel pipe is used as a conveying pipe or metal structure. It is widely used in fire engineering, natural gas transportation, petroleum processing industry, water conservancy engineering buildings, and residential buildings. This product refers to the use of the US standard ASTM A53, the British bid BS1387, the national standard GB/T3091 and the national standard GB/T13793, and should not be exposed in non -neutral environments such as acid, alkali, salt.
Pipeline technical requirements
(1) The surface of the tube -end to the groove section is flat, there is no bump without rolling marks.
(2) The center of the groove should be concentric with the tube wall, and the width and depth of the groove should meet the requirements.
(3) The grooved grooves that are processed by the tank machine shall not damage the galvanized steel pipe.
