Tubo de acero sin costura están perforados de acero redondo entero, y los tubos de acero sin soldaduras en la superficie se denominan tubos de acero sin costura.

　　Since the surface of the stainless steel tube will form a thin protective film, although the protective film is about 3×10-6 mm, it is very tough. Even if it is destroyed, as long as there is oxygen next to it, it can be regenerated immediately to prevent rust. As long as you know the characteristics of stainless steel and use it correctly.

Hyundai Steel Corporation announced on July 9 that the company's H-beam prices will increase from July 18.

Prueba de conocimientos de galvanización

　　There are many types of steel pipes and different uses, so their technical requirements are different and production methods are different.

Beneficios de usar tubería de acero inoxidable de pared delgada

In July, Korean cold-rolled flat product manufacturers began to increase prices. Among them, South Korea's Eastern Steel has identified new price tags, and other companies such as South Korea's Dongkuk Steel and South Korea's Shiya Group also participated in the price increase.

Since June 21, the price of hot rolled coil in the Midwest has remained above US$1,000/ton (up from US$6/ton to US$1009/ton on July 10). This is the price of US steel, represented by hot rolled coil, has once again exceeded $1,000/ton since October 17, 2008.

　　Thick-walled seamless steel pipes are subject to high weather factors. The heavy rains brought by many days have brought about the continuous increase in the price of thick-walled seamless steel pipe industry. Today, according to statistical prices, the prices are relatively stable, and the profits of enterprises are relatively stable. However, there are many companies that have no profit to earn, and are in a wait-and-see state!

Conocimiento del ámbito de aplicación de los tubos de acero sin costura en diferentes campos

　The price difference of thick-walled steel pipes is very large, and there are different prices in different regions. At the same time, there is a relative balance between the prices of related alternative products and too large or too small, which will cause the market to adjust itself. According to the latest official statistics on July 1, the price difference of thick-walled steel pipes per ton is about 3,000 yuan.

La tubería de acero inoxidable es un acero redondo largo y hueco, que se usa ampliamente en petróleo, química, medicina, alimentos, industria ligera, maquinaria e instrumentación y otras tuberías industriales y piezas estructurales mecánicas. La tubería de acero inoxidable es un tipo de acero de sección transversal económica . Es un producto importante en la industria del acero. Por lo general, representa alrededor del 8% -16% del acero total. Tiene una amplia gama de aplicaciones en la economía nacional y es en sí mismo un ahorro La sección económica del acero metálico es un parte importante del acero de alta eficiencia, especialmente en las industrias de perforación, fundición y transporte de petróleo.

　From the overall operation of the steel circulation industry in February, the main steel thick-walled steel pipe market has recovered after the holiday , the downstream orders have increased, the terminal demand has improved, the sales volume of steel trade enterprises has increased, and the steel circulation market activity has increased. From the perspective of supply, in February 2016, the average daily output of crude steel in the key steel enterprises of the China Iron and Steel Association was 1,558,600 tons, which was an increase of 30,200 tons compared with the average daily output of crude steel in January. According to a rough estimate of Lange Steel, the daily output of crude steel increased in February, and since it was only 29 days in February, the crude steel output in February will drop by about 61 million tons.

Especificación de tamaño de tubería de acero soldada eléctricamente de gran diámetro

Recently, large domestic steel mills and research institutes have visited the company frequently, and exchanges and inspection activities have further increased.

The aim is to introduce high-level innovation and entrepreneurial talents and promote the rapid development of enterprises.

The Φ920 hot-rolled seamless steel pipe production line project with a total investment of more than 1 billion yuan has progressed smoothly since the construction of the “Chengde Metallurgical Industrial Park” in June 2007.

27simn steel ingot is made of perforated or solid tube through the capillary, and then call is made hot-rolled, cold-rolled or cold.

When it is necessary to produce several shaped tubes, and the size of the strips used is allowed to be uniform (such as several kinds of hollow steel window tubes), only one set of forming rolls is needed , and then the rolls are changed on the shaping frame (the sizing frame of the round tube).