273x6 seamless steel tube (steam pipe boiler seamless tube).
273x6 seamless steel pipeClick on the avatar in the spot
Boiler is an important energy conversion equipment, which is widely used in electric power, heating, chemical industry and other fields. Low and medium pressure boiler tube is one of the key components in boiler manufacturing, and its mechanical properties directly affect the safe and stable operation of the boiler. In order to ensure that the mechanical properties of low and medium pressure boiler tubes meet the requirements, China has formulated the GB T3087 standard, which specifies the mechanical properties of low and medium pressure boiler tubes in detail. This article will introduce the relevant knowledge of the mechanical properties of GB T3087 low and medium pressure boiler tubes, in order to provide reference for boiler manufacturing and use.
Material selection. The commonly used materials for GB T3087 low and medium pressure boiler tubes include carbon steel, alloy steel, etc. The selection of these materials is mainly based on the working pressure, temperature, medium and other parameters of the boiler. When selecting materials, it is necessary to consider the strength, toughness, corrosion resistance and other factors of the materials to ensure that the boiler tubes have good mechanical properties during use.
Recently, the impact of low and medium pressure boiler tubes bottoming out and the continuous rise of the goods market, market confidence has been boosted, the spot market has picked up, and the local building materials market has finally ushered in the local market after a long time of silence. Most of the merchants in the local market are expecting to rise again before the holiday, and the atmosphere of price increases is getting stronger. On the whole, it is expected that Anshan construction steel will continue in a short period of time. In terms of the market, most of the upstream raw material billets and strip steel manufacturers are not very optimistic about the recent upstream, and the business purchase volume is limited, and it is difficult to drive the continuation of steel prices. Recently, Tianjin has once again faced the impact of environmental inspections, and the galvanized pipes in Tianjin and Tangtang have risen driven by the expected decrease in the amount of galvanized pipes. From the market point of view, the current environmental protection inspection has not caused a significant impact, and the transaction activity of H-beam is still not high;The lack of substantial terminal demand has led to its sluggish impact on the market, coupled with the May Day holiday, the downstream project has slowed down, and it is difficult for the steel market to have a big breakthrough in the first place. In terms of inventory, the current pressure on market resources is not large for the time being, and the balance of production and sales is still continued, and the inventory of local merchants is mainly about 2,500 tons, and the strategy remains unchanged with the entry and exit. Considering that the upstream cost support is gradually strengthening, but the market is cautious about the performance of this wave of growth, and it is expected that the low and medium pressure boiler tube market may be cautious for the time being.