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Not all post-weld heat treatments for steel pipes are beneficial
Welding residual stress is caused by the uneven temperature distribution of the weldment caused by welding, the thermal expansion and contraction of the weld metal, etc., so residual stress will inevitably occur with the welding construction. The most common method to eliminate residual stress is...Read more -
The main reasons for choosing spiral steel pipe are as follows
1. Quality assurance: The production of spiral steel pipes strictly adheres to national standards, ensuring reliable quality. At the same time, strict quality control is implemented in every link of its production process, further improving the quality and reliability of the pipeline. 2. Superior...Read more -
Detailed explanation of usage matters and flow characteristics in the installation guide for large-diameter plastic-coated steel pipes for water supply
First, the flow characteristics of large-diameter plastic-coated steel pipes for water supply: 1. When fluid passes through a plastic-coated steel pipe, the fluid flows faster in the pipe because the inner wall of the pipe is smooth and the friction resistance is small. 2. The cross-sectional are...Read more -
Examples, characteristics, and causes of steel pipe defects and defects
Surface indentation characteristics: The outer surface of the steel pipe is a spiral-shaped indentation. cause: 1) The angle of the straightening machine roller is improperly adjusted and the reduction amount is too large. 2) The straightening roller is seriously worn, etc. Cause: The roller stic...Read more -
Precautions for storage of galvanized steel pipes and methods for dealing with alkali reversion
First: Causes of anti-alkali (white rust, black spots) 1. The formation principle of white rust: When galvanized products are tightly packed and placed in humid air since there is no free-flowing air on the surface of the product, electrochemical corrosion will occur on the surface of the zinc la...Read more -
Do you know these eight things about seamless steel pipes
(1) The wall thickness coverage of seamless steel pipes is relatively wide and can achieve small diameters and large wall thicknesses and large diameters and large wall thicknesses, but the length is generally limited (only a few manufacturers can produce ultra-long pipes); stainless steel welded...Read more -
Explore the details of the tensile strength of industrial small-diameter seamless steel pipes
The tensile strength (Rm) of small-diameter seamless steel pipe refers to the maximum stress value the material withstands before breaking. When the small-diameter seamless steel pipe yields to a certain extent, its ability to resist deformation increases again due to the rearrangement of the int...Read more -
Construction preparation before welding of large-diameter steel pipes and introduction to inner wall anti-corrosion
Construction preparation before large-diameter steel pipe welding: 1. Organize relevant operators, familiarize themselves with construction drawings and procedures, formulate welding procedures, and compile welding operation instructions. 2. Welders should be trained in corresponding projects and...Read more -
Steel elbow process flow
Seamless steel elbow: Steel elbow is a kind of pipe fitting used at the end of the pipeline. Among all the pipe fittings used in the pipeline system, the proportion is about 80%. Usually, different forming processes are selected for steel elbows of different materials or wall thicknesses. Commonl...Read more -
What are the characteristics of the Cr2 steel pipe heat treatment process
The heat treatment process of the Cr2 steel pipe mainly includes steps such as annealing, normalizing, and quenching. These steps have their unique characteristics and purposes. Annealing is to heat the Cr2 steel pipe to about 800°C, hold it for a certain period, and then slowly cool it. The main...Read more -
Steel sheet pile construction process
1. Inspection and correction of steel sheet piles Steel sheet piles used for temporary support of foundation pits are inspected for surface defects, length, width, thickness, height, end rectangularity ratio, straightness, and lock shape, and welding parts on the piles that affect the installatio...Read more -
Industrial X52Q seamless steel pipe strength
As a common pipe material, steel pipes are widely used in all walks of life. Among them, X52Q seamless steel pipes are favored for their excellent performance and reliable quality. As one of its most basic performance indicators, the strength of steel pipes is directly related to its safety and s...Read more
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