1. Welded steel pipes for low-pressure fluid transportation (GB/T3092-1993) are also called generally welded pipes, commonly known as clarinet pipes. It is a welded steel pipe used for conveying water, gas, air, oil, heating steam, and other general lower-pressure fluids and other purposes. The wall

Steel is a non-combustible building material that is resistant to earthquakes and bending. In practical applications, steel can not only increase the load capacity of buildings relatively, but also meet the needs of architectural design aesthetics, and avoid the defects of concrete and other buildin

1. Reduce tripping time. It is about 5-10 times faster to change the drill bit with the wire rope than the traditional drill pipe trip;2. Save the cost of procurement, transportation, inspection, maintenance, and replacement related to drill pipes and drill collars;3. Because there is always a casin

ASTM A335 P11 seamless steel pipe, seamless ferritic alloy steel pipe for high temperature, used for the heating surface of the high-pressure boiler, economizer, header, superheater, reheater, petrochemical industry pipe, etc. It belongs to the category of seamless steel pipes. The manufacturing met

1. The superior antistatic performance of hot-dip plastic steel pipe: through the addition of antistatic agents in the formula, the internal and external surface resistance can reach and exceed the relevant national industry standards.2. Flame retardant properties of hot-dipped plastic steel pipes:

Welded steel pipe slag inclusions are slag that remains inside the weld. From a theoretical analysis, the main reasons for the slag inclusion in the submerged arc automatic welding seam are as follows: ①There are many inclusions in the raw materials (including base metal, welding wire, and flux); ②T

The process of forging steel flanges generally consists of the following processes, that is, selecting high-quality steel billets for blanking, heating, forming, and cooling after forging. The process methods of forging steel flanges include free forging, die forging, and film forging. During produc

To protect power and communication cables laid in railways, highways, subways, municipal construction, and other system fields, when the cables pass through obstacles such as railways, highways, and rivers, cable protection tubes are generally added to the pipelines. At present, the cable protection

1. In the test results of straight seam steel pipes, if a certain item does not meet the requirements of the product standard, the unqualified ones should be picked out, and double the number of samples should be randomly taken from the same batch of straight seam steel pipes, and the unqualified it

1. 3PE anti-corrosion steel pipe has high sealing performance, and long-term operation can greatly save energy, reduce costs and protect the environment.2. Strong corrosion resistance, simple and fast structure, and service life can reach 30-50 years.3. At low temperatures, PE has good corrosion res