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How to deal with blackening of stee
Under natural conditions, a 10-20A oxide film will be formed on the surface of steel parts due to the contact with oxygen in the air. During natural film formation, depending on the physical properties of the metal itself, the surface state and the oxidation conditions, some of the oxide films fo...Read more -
Welded steel pipes you don’t know
Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or steel strip after being crimped and welded. Welded steel pipes have a simple production process, high production efficiency, many varieties and specifications, and less equipment investment, but the general stren...Read more -
How many ways are there to connect pipes?
1. Flange connection. Pipes with larger diameters are connected by flanges. Flange connections are generally used in main road connecting valves, return valves, water meter pumps, etc., as well as on pipe sections that need to be dismantled and repaired frequently. If the galvanized pipe is conne...Read more -
Standard for seamless steel pipes
Seamless steel pipe is a long strip of steel with a hollow section and no joints around it. The steel pipe has a hollow section and is widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with soli...Read more -
Ferrous, steel and non-ferrous metals
1. Ferrous metals refer to iron and iron alloys. Such as steel, pig iron, ferroalloy, cast iron, etc. Both steel and pig iron are alloys based on iron and with carbon as the main added element, collectively referred to as iron-carbon alloys. Pig iron refers to a product made by smelting iron ore ...Read more -
Mechanical Properties of Steel
1. Yield point When the steel or sample is stretched, when the stress exceeds the elastic limit, even if the stress does not increase, the steel or sample continues to undergo obvious plastic deformation, which is called yielding, and the minimum stress value when the yielding phenomenon occurs i...Read more -
Steel length dimension
The length dimension of steel is the most basic dimension of all kinds of steel, which refers to the length, width, height, diameter, radius, inner diameter, outer diameter and wall thickness of steel. The legal units of measurement for the length of steel are meters (m), centimeters (cm), and mi...Read more -
Steel-plastic composite pipe
The steel-plastic composite pipe is made of hot-dip galvanized steel pipe as the base, and the inner wall (the outer wall can also be used when needed) is coated with plastic by powder melting spraying technology, and has excellent performance. Compared with galvanized pipe, it has the advantages...Read more -
About plastic coated steel pipe and galvanized pipe
Plastic coated steel pipe： Plastic-coated steel pipe is a new type of green and environmentally friendly pipe, and its specific properties can make it a new favorite in the pipe industry in just over ten years. First of all, from the point of view of merchants, no matter it is plastic pipe or ...Read more -
Application of stainless steel tubing in petroleum and petrochemical industry
Application of stainless steel tubing in petroleum and petrochemical industry Stainless steel according to the chemical composition can be divided into Cr stainless steel, CR-Ni stainless steel, CR-Ni-Mo stainless steel, according to the application field can be divided into medical stainless ste...Read more -
What is coiled tubing
Coiled tubing, also known as flexible tubing, is made of low carbon alloy steel tubing with good flexibility to meet the requirements of plastic deformation and toughness required by downhole operations. Commonly used coiled tubing specifications are: Phi 1/2 three-quart...Read more -
Origin of stainless Steel
Brearley invented stainless steel in 1916 obtained the British patent and began to mass production, so far, the stainless steel accidentally found in the garbage became popular all over the world, Henry Brearley is also known as the "father of stainless steel". During th...Read more