LSAW Steel Pipe

The epidemic situation is constantly impacting the global economy. For the foreign trade industry, the epidemic situation greatly limits the visiting of new customers. At the same time, the demand for global inventory procurement is declining. Xinyue international business is devoting more efforts to support key projects of cooperative regular customers. In July, Australia's long-term partner project needs to purchase spiral steel pipe 406.4*9.53mm specification fixed length, standard AS1163 C350L0, impact requirements to meet 0 degree 27 J, delivery on schedule at the end of August. Xinyue exports nearly 10000 tons of Australian standard products every year. All departments are familiar with the raw material procurement channel, production technology link control, quality inspection and acceptance. This type of product is one of Xinyue's most advantageous products. Move Forward Hand In Hand And Win-Win Cooperation For quality control and logistics and transportation control, X...

 In March 2016, a European customer sent an inquiry for thin-walled ERW welded pipe with a quantity of 2,400 tons. Since I had already given the customer enough quotation support at that time, the customer still asked for a price reduction, and at the same time told us that he already had a better price plan from another company, and expressed the hope that we could reach the target price and cooperate with us. However, after considering various factors such as quality, delivery time, customer service, etc., we did not accept customer orders. Later in 2019, I learned that the customer and the supplier had a quality and commercial dispute over this project. Customers said that through this incident, we Xinyue has always been upholding the integrity and win-win cooperation concept. Facts have proved that we Xinyue is a trustworthy supplier and partner. In the future, we will focus on cooperation with our Xinyue Steel Group. At the beginning of 2020, the customer sent an inquiry about...

 1. Spiral submerged arc welded steel pipe (SSAW) and longitudinal submerged arc welded steel pipe (LSAW) In the 1950s and 1960s, spiral steel pipes were widely used in oil and gas pipelines. In the 1970s and 1980s, they were severely challenged by longitudinal submerged arc welded steel pipes (LSAW steel pipe) and ERW steel pipes. So far, spiral steel pipes are basically no longer used in oil and gas pipelines in the world. , Many major international oil companies and pipeline companies have not allowed the use of spiral submerged arc welded steel pipes for oil and gas pipelines. This is because the development of the pipeline industry has higher and higher requirements for the reliability of steel pipes, and the spiral steel pipe is difficult to meet the requirements of objective development due to the insurmountable defects of its manufacture. Compared with LSAW steel pipes, spiral pipes have certain deficiencies in quality. Here are seven items for your reference. (1) The manuf...

 To help customers create value and even provide value-added services for customers is the best choice to build customer loyalty and establish partnership. Each time to help customers win the bid, each time to help customers expand the market, in fact, is to open up a broader living space for ourselves. At the beginning of May 2020, One new Colombia customer who is a well-known manufacturer of pipe fittings. Through the introduction of local peers, contacted Xinyue about the planing to expand the galvanized pipe business beyond the production scope to improve the product system.Customer is lack of such professional knowledge and hope Xinyue could provide qualified products to support the business also support a complete set of training,including the knowledge and application of the product. We started from the local actual demand research, to product knowledge, production process, application characteristics and other aspects with customers to conduct a comprehensive study and rese...

 In mid-June, Xinyue received an natural gas pipeline projects order from an old customer in Africa. At that time, due to customer’s delay of confirming technical parameters , the delivery time of this order was shortened by half. Under the high synergy operation, Xinyue successfully delivered the satisfied goods to our customers in mid-July. Xinyue’s on-time delivery allowed the customer’s project progress can proceed as scheduled. While maintaining the customer’s reputation, it also further consolidated the cooperative relationship between Xinyue and our customer. Our customers expressed their high gratitude and appreciation for Xinyue's on-time delivery. In August, our customer sent an email and hoping that Xinyue could help complete the pipeline production of the follow-up part of the last natural gas pipeline project. After detailed technical communication and confirmation, Xinyue won the follow-up of the natural gas pipeline project at the end of August. Repeat order originat...

 　　1) Appearance defects such as crack, folding, heavy skin, hair grain, pinhole. Generally magnetic particle testing or soak detection is used. For ferromagnetic material, magnetic powder assay should be adopted preferentially, because it has higher flexibility of detection; for non-ferromagnetic material, such as stainless seamless steel pipe, soak test is used. 　　2) Steel pipe end defects. When obligate excision allowance is fewer, for the structural reasons of detection installation, the two ends sometimes can not get useful testing, which is the most likely to crack or other defects existing sites. If there are latent crack points, the welding heat may also lead to crack propagation. Thus, after butt we should also pay attention to the detection of will surely area of seamless steel pipe, and duly find out defect expansion in steel pipe end. 　　3) Defects such as stress corrosion crack or corrosive pitting. For online use austenitic seamless steel pipe, when shell damaged or th...

 　　The common method of cutting straight seam steel pipes is gas cutting, which uses the heat generated by the combustion of oxygen and acetylene to melt the cut metal at high temperature to produce iron oxide slag, and then blows the slag away from the metal with a high-pressure oxygen gas flow. The straight seam steel pipe is cut. 　　The gas cutting tool for cutting straight seam steel pipe is cutting torch. According to the different pressure of acetylene, it is divided into two types: jet suction type and isobaric type. We commonly use jet suction type cutting torch. The oxygen for gas cutting is supplied by an oxygen cylinder, and the acetylene gas is supplied by an acetylene cylinder or an acetylene generator. 　　Using gas cutting to cut straight seam steel pipe has high efficiency and easy operation. The cut section is relatively neat, but an oxide film will be attached to the cut surface. It needs to be removed before welding. In the process of installing straight seam steel ...

 　　Consumer demand will continue to grow 　　In 2020, my country has effectively contained the new crown pneumonia epidemic, the economy has recovered rapidly, and the trend of improvement is obvious. On February 24, Kristalina Georgieva, President of the International Monetary Fund, pointed out in her speech that China's economy will grow by 9.2% in 2021, an increase of 7 percentage points over 2020. Even according to the forecast made by the National Bureau of Statistics, my country's economic growth rate will be more than 5% in 2021, and the growth rate will be at least 3 percentage points higher than that in 2020. In 2021, important economic indicators such as my country's industrial added value and fixed asset investment will also speed up accordingly, laying a solid foundation for the steady growth of my country's steel demand. 　　The author predicts that in 2021, my country will continue to take infrastructure investment as an important tool for stable economic grow...

 　　The coal market can be said to be changing rapidly. Looking back on last week, the port coal price was still declining. Some experts believe that it would be good if the decline was stopped in March. The rise of coal prices needs to wait until the end of April. However, entering this week, the market suddenly turned for the better, people were caught off guard, and high-quality low-sulfur coal could not be sold! Coal prices in the port market have risen again! 　　First of all, the Spring River Plumbing Duck Prophet, ocean freight has always been the leading indicator of the market trend. On February 10, ocean freight was the first to rise; after the long Spring Festival holiday, with the release of market pallets, the demand for coal improved, and ocean freight rose accelerated. In less than a month, the freight rate for coal ships with 50,000 to 60,000 tons from Qinhuangdao to Guangzhou has more than doubled from the lowest level of 25.1 yuan/ton to the current 62 yuan/ton. 　　Se...

 　　Spheroidizing annealing is a heat treatment process for spheroidizing carbides in steel to obtain granular pearlite. 　　Process: Heating to 20 ~ 30 ℃ above Ac1, the holding time should not be too long, generally 2 ~ 4h is suitable, and the cooling method is usually furnace cooling, or a long time isothermal at about 20 ℃ below Ar1. 　　It is mainly used for eutectoid steel and hypereutectoid steel, such as carbon tool steel, alloy tool steel, bearing steel, etc. The microstructure of hypereutectoid steel after rolling and forging is lamellar pearlite and reticulated cementite. This structure is hard and brittle, not only difficult to cut, but also easy to deform and crack in the subsequent quenching process. . Spheroidized annealing results in spherical pearlite. In spherical pearlite, fine cementite particles are spherical and dispersed on the ferrite substrate. Compared with lamellar pearlite, spherical pearlite is not only harder and easier to cut, but also harder to austenite g...