Recent Entries

• What has Promoted the Development of Pipe Extrusion Technology?

  by Yin Tuo September 4, 2022
  Extrusion molding is often used in the production of pipes. From an international point of view, there have been more in-depth studies on pipe extrusion molding of soft metals such as Mg, Al, Cu, etc. About 1797, the British Braman designed it. The world's first mechanical extruder for lead extrusio...

• How are Seamless Pipes Made?

  by Yin Tuo July 17, 2022
  Seamless pipes, especially stainless steel seamless pipes, can be used in various applications. Seamless coiled tubing is a key component of many products, such as solar tubing and even hydraulic pipelines. So how is it seamless? One of the ways to make seamless pipes is extrusion. Extrusion is a p...

• Analyze the research progress of duplex stainless steel in Chin

  by Yin Tuo June 13, 2022
  Duplex stainless steel pipe has a higher alloy content, and the austenite and ferrite phases each account for about half of the two-phase structure. Endows it with high strength and excellent corrosion resistance, but it also brings certain difficulties to its processing, production and organiz...

• Why Should Seamless Steel Pipes be Pickled?

  by Yin Tuo February 27, 2022
  The method of using an acid solution to remove oxide scale and rust on the surface of the steel is called pickling. Iron oxides such as scale and rust react chemically with the acid solution to form salts which are dissolved in the acid solution and removed. Acids for pickling include sulfuric acid,...

• Analyze the Characteristics of Stainless Steel Seamless Pipes

  by Yin Tuo January 17, 2022
  Stainless steel seamless pipe is long steel with a hollow section and no joints on the periphery. The thicker the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the processing cost will rise significantly; the process of the product dete...

• Analyze Common Elements in a Nickel Alloy and Their Functions

  by Yin Tuo January 3, 2022
  Common elements in nickel alloy are Ni, Cr, Mo, Fe, CU, Al, Ti, Nb, W, N, Co, etc. Ni provides metallurgical stability, improves thermal stability and weldability, improves corrosion resistance to reducing acids and caustic soda, and improves stress corrosion cracking resistance, especially in...

• Comparison of Stainless Steel and Acid-resistant Steel

  by Yin Tuo December 12, 2021
  Stainless steel is the abbreviation of stainless and acid-resistant steel. Steels that are resistant to weak corrosive media such as air, steam, and water or have rust resistance are called stainless steels; and steels that are resistant to chemical corrosion media are called acid-resistant ste...

• What is the Research Progress of Duplex Stainless Steel in Chin

  by Yin Tuo November 14, 2021
  Duplex stainless steel pipe has a higher alloy content, and the austenite and ferrite phases each account for about half of the two-phase structure. Endows it with high strength and excellent corrosion resistance, but it also brings certain difficulties to its processing, production and organiz...

• Do you Know what Characteristics Austenitic Stainless Steel has

  by Yin Tuo August 9, 2021
  Various stainless steel material workpieces are encountered in the cutting process, and the cutting formation and removal characteristics of different stainless steel material workpieces are different. Below we briefly share their cutting characteristics with you. We all know that stainless steel i...

• About Super Austenitic Stainless Steel Seamless Pipe And Tube P

  by Yin Tuo July 13, 2021
  There are many seamless pipes on the construction sites around us, and we don’t know what some seamless pipes are. Today we will talk about Super Austenitic Stainless Steel Seamless Pipe and Tube . Austenitic stainless steel refers to stainless steel with an austenitic structure at room ...

• Performance Of Austenitic Stainless Steel Seamless Pipe

  by Yin Tuo July 6, 2021
  An Austenitic Stainless Steel Seamless Pipe refers to a stainless steel seamless pipe with an austenitic structure at room temperature. When the steel contains about 18% Cr, 8% to 25% Ni, and about 0.1% C, it has a stable austenite structure. Austenitic chromium-nickel stainless steel includes...

• Performance Of Alloy Steel Seamless Pipe

  by Yin Tuo June 22, 2021
  We can see Alloy Steel Seamless Pipe in many places, including various factories. Today, let’s talk about what Alloy Steel Seamless Pipe is. Alloy Steel Seamless Pipe has a long strip of steel with a hollow section and no joints on the periphery. Steel pipes have a hollow section and are...

• Understand The Specifications And Quality Of Stainless Steel Se

  by Yin Tuo June 1, 2021
  There are many seamless pipes around us, and Stainless Steel Seamless Pipe is one of them. Today we will talk about the specifications and appearance quality of Stainless Steel Seamless Pipe. According to the provisions of GB14975-2002 "Stainless Steel Seamless Steel Tubes", steel pipes usuall...

• Analysis of the use and working conditions of stainless steel s

  by Yin Tuo May 6, 2021
    Usually, according to the use of steel pipe and its working conditions, different technical conditions should be proposed for the allowable deviation of steel pipe size, surface quality, chemical composition, mechanical properties, process performance and other special properties. When gene...

• Factors Affecting the Corrosion Resistance of Stainless Steel T

  by Yin Tuo April 29, 2021
    The production of stainless steel seamless pipe is divided into cold processing and hot processing. No matter which processing technology is used, it will have a certain impact on the stainless steel pipe. Causes of cold working damage to the corrosion resistance of stainless steel pipes and...

• Theoretical Analysis of Intergranular Corrosion

  by Yin Tuo April 21, 2021
    Intergranular corrosion is common localized corrosion, which extends to the inside along the interface between metal grains. The mechanism of intergranular corrosion mainly includes "Cr-poor theory" and "Selective dissolution theory of grain boundary impurities". 1. Poor Cr theory The satu...

• Do you know how the production process of nickel-based alloys i

  by Yin Tuo April 7, 2021
    Smelting: In order to obtain more pure molten steel, reduce the gas content and the content of harmful elements. At the same time, due to the presence of easily oxidizable elements such as Al and Ti in some alloys, non-vacuum smelting is difficult to control. In order to obtain better thermo...

• The use of stainless steel pipes in life

  by Yin Tuo April 1, 2021
    Stainless steel pipe is a kind of economical cross-section steel. It is an important product in the iron and steel industry. It can be widely used in life decoration and industry. Many people on the market use it to make stair railings, window guards, railings, furniture, etc. Stainless ste...

• What is the delivery status of hot-rolled seamless steel pipes?

  by Yin Tuo March 25, 2021
    The production process of general seamless steel pipes can be divided into two types: cold-drawn and hot-rolled. The production process of cold-rolled seamless steel pipes is generally more complicated than hot-rolled. The tube blank must first be subjected to three-roll continuous rolling,...

• Application of nickel alloy seamless pipe in life

  by Yin Tuo March 3, 2021
    Nickel alloy seamless pipe refers to a type of alloy with high strength and a certain degree of oxidation and corrosion resistance at a high temperature of 650～1000℃. According to the main performance, it is subdivided into nickel-based heat-resistant alloys, nickel-based corrosion-resistant...
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