Summary: Ship carbon steel square pipe (gb-) is a carbon steel square pipe for ship class I pressure pipe system, class II pressu[Read the full text]
Summary: Classification of square pipe material square pipe is divided into ordinary carbon steel square pipe and low alloy squar[Read the full text]
Summary: Improve the positioning and pre bending steps, if necessary, to ensure that the web hunting problem does not occur when [Read the full text]
Summary: The disadvantage of empty bending is that during synchronous empty bending at the upper and side, due to the pressure ge[Read the full text]
Summary: When storing QB square pipe, we need to select a suitable place. We need to think about many external factors, such as t[Read the full text]
Summary: The load of impact toughness acting on the parts at a great speed is called impact load. It is specialized in products a[Read the full text]
Summary: B. converter steel: (a) acid converter steel; (b) Basic converter steel. Or (a) bottom blown converter steel; (b) Side b[Read the full text]
Summary: The principle of straightening machine is that a disc is divided into two sides to clamp round steel straight lines. Pro[Read the full text]
Summary: Mechanical engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airp[Read the full text]
Summary: When sand blasting or manual mechanical derusting is used, due to the falling off of the oxide scale of the galvanized s[Read the full text]
Summary: B. low alloy structural steel C. ordinary structural steel and high-quality steel for specific purposes (including high-[Read the full text]
Summary: The second is the pickling of the square pipe. Both chemical and electrolytic methods are used when pickling the square [Read the full text]
Summary: There are sets of MPM and sets of MRK pipe mills in the world. Strength refers to the function of qb square tube data [Read the full text]
Summary: Square tube, modified square tube, square tube, QB square tube and hot-rolled square tube are qualified in quality inspe[Read the full text]
Summary: Generally speaking, square pipe welding has a process: ignition, ship steel boiler steel, pressure vessel steel, agricul[Read the full text]
Summary: Impact toughness the load acting on the machine part at a great speed by QB is called impact load, and the ability of me[Read the full text]
Summary: If there is only a single plane weld, the step-by-step back welding shall be adopted from the middle, that is, the arc o[Read the full text]
Summary: negotiation46 price of galvanized square pipe,Compared with other welding, square pipe welding has many advantages, main[Read the full text]
Summary: In this period, the technology of continuous rolling pipe was not mature.Derusting grade for the construction process of[Read the full text]
Summary: the hardness method is commonly used to measure the hardness in production. It uses the indenter with fixed geometry to[Read the full text]
