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Control Requirements for Cooling Rate of Seamless Steel Tubes

The production process of seamless steel tubes includes: converter smelting, refining, round billet continuous casting, tube billet heating, perforation, continuous rolling, sizing, cold bed cooling, wherein the cooling process has a great influence on the performance of seamless steel tubes. We must pay attention to controlling the cooling rate of seamless steel tubes and selecting […]

Seamless Steel Tube Annealing, Normalizing, Quenching, Tempering

1. Seamless steel tube annealing Method of operation: After heating the seamless steel pipe to a temperature of Ac3+30~50 degrees or Ac1+30~50 degrees or below Ac1, it is generally cooled slowly with the furnace temperature. Objectives: 1. Reduce hardness, improve plasticity, improve cutting and pressure processing performance; 2. Refine grain, improve mechanical properties, prepare for […]

Selection of submerged arc welded straight seam steel pipe

(1) Pipes with high requirements for peak regulation Because the user’s gas consumption is very uneven, the pipeline pressure fluctuates frequently, the steel pipe is subjected to large alternating stress, and the pipe has been lacking in expansion under alternating stress, if selected The spiral welded steel pipe with many welds and high probability of […]

Several Issues to Pay Attention to when Purchasing Pipe Fittings

1.Material problem Many companies use materials that are irregular and usually refer to nickel content. Although it can be distinguished by syrup, it is obviously a misunderstanding, because the small charge contains only more than seven nickels that cannot be distinguished. However, the price difference of raw materials is very large, and this is one […]

Thick-walled Seamless Steel Pipe Solves Liquid Transportation Problems

The reason why people have to work hard to make such a seamless steel pipe is because in some special circumstances, people need to use such a jointless steel pipe. Many people do not know under what conditions. It is necessary to use steel pipes without joints. In fact, in daily life, hydraulic cylinders are […]

Polyurethane Insulation Seamless Tube

As a thermal insulation tube, seamless steel pipe has been praised by many users. It has been rapidly developed in the market as a kind of thermal insulation material because of its unique performance advantage. The pipe insulation material made of polyurethane foam is the product of cold and high efficiency, waterproof and anticorrosive high […]

Precision Seamless Steel Pipe Produces A brittle Tempering Temperature Range

Precision seamless steel tubes produce a brittle tempering temperature range that can be classified into low temperature temper brittleness and high temperature temper brittleness. Precision tube low temperature temper brittleness After quenching the martensitic structure, the alloy steel is tempered in the temperature range of 250~400 °C to embrittle the steel, and the toughness-brittle transition […]

Comparison Of Seamless Pipe Insulation And Cold Rolling Hot Rolling

Seamless steel tubes are used in a wide range of applications. The general-purpose seamless steel pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, and has the largest output, and is mainly used as a pipe or structural component for conveying fluid. .2 according to the use of three […]

Seamless Tube Facilitates The Transport Of Liquids

The water we use in our lives, as well as the natural gas we use in our lives, are transported from our specific locations to our homes through pipeline connections. Therefore, the use of steel pipes has become very frequent. In the transportation of liquids, it is necessary to ensure that the liquid does not […]

Wear Resistance Of Thick-walled Seamless Steel Tubes

The application of thick-walled seamless steel pipes in pipelines in recent years is very large, and it can be said that there are huge applications. In the pipeline application, because of the large amount of liquid with relatively high viscosity, its unique wear resistance is reflected, so what are its characteristics of wear resistance? 1. […]