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What requirements should be met for weld repair of pressure steel pipes
(1) Before repair, the causes of steel pipe defects should be analyzed and corresponding repair measures should be proposed. (2) When reworked steel pipes require repair welding, qualified welding processes should be used and welded by qualified welders. (3) When the number of repairs for the sam...Read more -
Several forms of steel rolling
According to the deformation principle of rolled parts, steel rolling is generally divided into the following three forms: *.1 Longitudinal rolling: the running direction (axis) of the rolled piece is perpendicular to the axis of the roll, and the rolled piece moves in a straight line; production...Read more -
What is a stainless steel profile
Stainless steel profiles are stainless steel materials with different cross-sectional shapes obtained by hot melting and extruding stainless steel rods. The production process of stainless steel profiles mainly includes three processes: casting, extrusion, and coloring. Among them, coloring mainl...Read more -
Embroidery removal technology for submerged arc steel pipes
Introduction to the embroidery removal technology of submerged arc steel pipes: During the anti-corrosion construction process of oil and gas pipelines, the surface treatment of large-diameter submerged arc steel pipes is a key factor that determines the anti-corrosion service life of the pipelin...Read more -
What is the difference between high-pressure boiler steel tubes and low- and medium-pressure boiler steel tubes
The differences between high-pressure boiler steel tubes and low- and medium-pressure boiler steel tubes are as follows: 1. Different implementation standards High-pressure boiler steel tube implementation standard: GB/T5310-2018 Low and medium pressure boiler steel tube implementation standards:...Read more -
What is the main function of valves
Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. V...Read more -
Non-destructive testing of steel pipe fittings
The relevant provisions in the national standard for steel pipe fittings “GB/T13401-2017 Technical Specifications for Steel Butt Welded Pipe Fittings”: 7.3 Non-destructive testing 7.3.1 Tees, crosses, press-formed reducers, and pipe caps formed by the direct cutting of bars of all mat...Read more -
The meaning and classification of stainless steel pipe corrosion
In a corrosive environment, the damage caused by chemical or electrochemical interactions between metal and surrounding media is called corrosion. In a corrosive environment, when stainless steel is improperly selected, corrosion will also occur. There are many classification methods for corrosio...Read more -
What do fire steel fittings include
Fire steel pipe fittings refer to the metal joints on fire pipe belts. As a product made of special materials, the connection operation is very simple and does not require special professional skills. Ordinary workers can operate it with simple training. On the other hand, fire steel pipe fitting...Read more -
A brief introduction to boiler steel pipes
Boiler steel pipes refer to steel materials that are open at both ends and have hollow sections with a large length relative to the surrounding area. According to the production method, they can be divided into seamless steel pipes and welded steel pipes. The specifications of the steel pipes are...Read more -
The principle of anti-corrosion steel pipes
Coating anticorrosion is a uniform and dense coating formed on the surface of de-rusting steel pipes, which can isolate it from various corrosive media. Steel pipe anti-corrosion coatings are increasingly using composite materials or composite structures. These materials and structures must have ...Read more -
What is the service life of carbon steel tube?
Carbon steel tubes are made of steel ingots or solid round steel through perforation into capillary tubes, and then made by hot rolling, cold rolling or cold drawing. Carbon steel tube plays an important role in my country’s steel pipe industry. Carbon steel tubes come according to your med...Read more