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Wuxi fulintai iron and Steel Co., Ltd

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Current location: home page > News and information >Specification table of Hunan high quality small diameter thick wall alloy steel pipe
Specification table of Hunan high quality small diameter thick wall alloy steel pipe
Double click auto scroll Publisher: administrator release time: October 2, 2020 read: ninety-eight Secondary [font: large in Small

Brief introduction of Hunan small diameter thick wall alloy steel pipe


The technology of heat hydrogen treatment of alloy steel pipe is to use the interaction of appropriate amount of hydrogen and titanium alloy to achieve the purpose of improving performance. It has been or may be applied in the following aspects, and has high practical value. The effect of hydrogen alloying of titanium alloy on reducing flow stress and increasing ultimate deformation rate is called "hydrogen plasticization".
Hydrogen has a beneficial effect on the thermoplasticity, room temperature plasticity and Superplasticity of alloy steel tubes. The temperature of high temperature hydrogen plasticizing is 500 ~ 10009c, which can reduce the flow stress and increase the limit deformation rate. The effect of room temperature hydrogen plasticization is to increase the limit deformation rate before the initial crack appears.
Hydrogen can reduce the flow stress and forming temperature of alloy steel tube during superplastic deformation, and increase the ultimate deformation rate. Hydrogen induced room temperature plasticization, hydrogen induced high temperature plasticization and hydrogen induced superplasticity are three phenomena which are related and different in hydrogen plasticizing technology. Each phenomenon has its own properties which are different from the other two phenomena. The following chapters of this book mainly introduce the influence of hydrogen on room temperature plasticity, high temperature plasticity and Superplasticity of titanium alloys.


 Hunan small diameter thick wall alloy steel pipe

Hunan small diameter thick wall alloy steel pipe in stock


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News of Hunan small diameter thick wall alloy steel pipe


Under the premise of not expanding the production, the profit level of the enterprise has been steadily improved through technological progress and product innovation. On the contrary, most of the enterprises that have expanded too fast in recent years are not optimistic. Last week, spot prices were in a downward phase. The long-term price continued to decline, and the demand shrank again. Although the merchants' willingness to store in winter was not strong, the inventory still increased slowly. In addition, the steel mills also gave more profits, which made the market price trend more depressed in the later period, and the merchants' mentality was weak. This week, with the closing of the new year, it should be the effective closing period of the last week. However, it is difficult to change the weak mentality. It is expected that the price will continue to be weak. Today, we need to pay attention to the steel mill policy. At the beginning of the month, the domestic capital slightly eased, but suffered from the characteristics of the off-season demand, the winter storage market weakened, and the alloy tube market was still mainly down, but the decline slowed down from the second half of the week. Some city line snail and other varieties in East China were closed and pulled up, but the downstream transaction was still light, and only a few intermediate market replenishment transactions appeared. From the middle of the week, with the short-term rebound of the futures market, coupled with the release of the benefits such as the sharp drop in crude steel production, the steel market began to stabilize after a long fall, and some even closed the warehouse rebounded, and the bottom copy operation of alloy tube increased significantly.





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