Conocimiento del ámbito de aplicación de los tubos de acero sin costura en diferentes campos.
1. Tubería de acero sin costura de uso general ASTM A53 GR.B, número de acero: SA53 B, especificación: 1/4 ″ -28 ″, 13,7-711,2 mm
2. Tubo de caldera de baja y media presión GB3087-1999, número de acero: 10 #, 20 #, especificación: 6-720 * 1-70 mm 12. Tubo de caldera de alta presión GB5310-1995, número de acero: 20G, especificación: 6-720 * 1 -70 mm
3. Tubería API SPEC 5L, número de acero: B, X42, X46, X52, especificación: 1/4 ″ -28 ″, 13,7-711,2 mm
ASTM A106 / A53 / API 5L GR.B, número de acero: B, especificación: 1/4 ″ -28 ″, 13,7-711,2 mm
5. Tubería de acero sin costura ASTM A333 para operación a baja temperatura entre -40 ℃ -101 ℃, grado de acero: GR.A, GR.1, GR.6, GR.7, GR.3, especificación: 1/4 ″ -28 ″, 13,7-711,2 mm
6. Tubo de acero sin costura GB / T8163-1999 para transportar fluido, número de acero: 10 #, 20 #, 16Mn (Q345), especificación: 6-720 * 1-70 mm
7. Tubería de acero sin costura ASTM A106 GR.B para operación a alta temperatura, número de acero: SA106B, especificación: 1/4 ″ -28 ″, 13.7-711.2mm
8. Tubería de acero sin costura estándar alemana DIN2448 / 1629, número de acero: St37, St44, St52, especificación: 1/4 ″ -28 ″, 13,7-711,2 mm
9. Tubería de acero de bajo carbono sin costura ASTM A179 para intercambiador de calor y condensador, especificaciones: 3/4 ", 1" 1
10 Tubería de acero sin costura de acero resistente al calor (tubería resistente al calor) DIN17175-1979, grado de acero: acero estructural al carbono St35.8-St45.8 / I, St35.8- St45.8 / III, acero estructural de aleación 15Mo3, 13CrMo44, 10CrMo910, especificación: 1/4 ″ -28 ″, 13,7-711,2 mm
11.Tubo de acero sin costura para estructura GB / T8162-1999, número de acero: 10 #, 20 #, 35 #, 45 #, 16Mn (Q345), especificación: 6-720 * 1-70 mm

　　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!


　　Yesterday, the market price continued to surge sharply under the promotion of futures, but the actual downstream purchase volume was small, and the daily trading volume of large households was only about 200 tons. According to the warehouse processing staff, yesterday, the processing orders were sold in the previous period but the raw materials were not picked up, and the new orders were less. The side indicates that the market is not willing to continue to stock up. In terms of resources, this week, Ninggang has limited supply, and the steel mills have delivered the goods in strict accordance with the order of payment. At the beginning of the month, the orders for C materials and steels are the main ones, and the delivery period for Q materials is back. The total amount of China Railway resources is small. The basic digestion of the week was completed; Tonghua Steel and Rizhao received a small amount of goods, and the market showed a weak state of supply and demand in the short term. In summary, it is expected that the price of local thick-walled seamless steel pipes will fluctuate mainly in the short term .


　　Thick-walled seamless steel pipe production and inventory are not many, coupled with weather factors, thick-walled seamless steel pipe prices will not decline in the short term, the market dynamic overall movement is not big!