LSAW Steel Pipe

Carbon structural steel pipe is a seamless pipe that does not contain other alloying elements except for carbon (C) elements and a certain amount of silicon (Si) (generally not exceeding 0.40%) and manganese (Mn) alloying elements for deoxidation. . Such steels must guarantee both chemical composition and mechanical properties. The content of impurity elements such as sulfur (S) and phosphorus (P) is generally controlled below 0.035%. Structural seamless pipe pickling In addition to stripping the iron oxide scale during pickling, hydrogen also diffuses into the carbon structural steel pipe matrix and gathers at impurities or pores. It leads to an increase in internal stress, reduces the plasticity of carbon structural steel pipes, and increases the brittleness of carbon structural steel pipes. This effect is called hydrogen embrittlement. Hydrogen embrittlement is mainly affected by the diffusion rate of hydrogen atoms. The diffusion rate of hydrogen is related to the following factors...

What is non-destructive testing? Non-destructive testing, referred to as NDT, is a modern inspection technology that detects the shape, position, size and development trend of internal or external defects without damaging the object to be inspected. It has been widely used in steel pipe production in recent years. The non-destructive testing methods used in the production of seamless pipes & tubes mainly include magnetic particle testing, ultrasonic testing,radiographic testing, eddy current testing, penetrant testing, etc., and various testing methods have a certain range of application. 1. Magnetic Particle Testing Apply magnetic powder on the surface of the seamless pipe to be tested, apply a magnetic field or current to make it enter the defect, form a magnetic charge distribution, and then observe the deposition of the magnetic powder to detect the defect. 2. Ultrasonic testing Using the characteristics of ultrasonic propagation in materials, by transmitting and receiving ultr...

 The properties of seamless tubes include yield point, tensile strength, hardness index, reduction of area, and elongation after fracture. 1. Yield point For metal materials with yield phenomenon, the stress at which the sample can continue to elongate without increasing the force (keep constant) during the stretching process is called the yield point. If the force drops, the upper and lower yield points should be distinguished. The unit of yield point is N/mm2 (MPa). 2. Tensile strength The stress (σ) obtained by dividing the force (Fb) that the sample bears when it is broken by the original cross-sectional area (So) of the sample during the stretching process is called the tensile strength (σb), and the unit is N /mm2 (MPa). It represents the ability of metal materials to resist damage under tension. 3. Hardness index The ability of metal materials to resist the indentation of hard objects on the surface is called hardness. According to different test methods and scope of applica...

 Project location：Azerbaijan Product：Seamless steel pipe Standard and material：GOST 8734-75/ GOST 8732-78 Specifications：32mm-159mm Usage：stock Inquiry time：2022.10.25 Order time：2022.12.02 Shipping time：2022.2.10 Arrival time：2023.03.10 Xinyue has been rooted in the steel industry for many years and has accumulated a good reputation . Win the unanimous approval of customers at domestic and abroad. This order in Azerbaijan is the referral of old customers. Because of the reliable reputation, customers immediately confirmed that they would cooperate with Xinyue after getting the price of Xinyue. It was only because the contract process between the customer and the local Azerbaijani customer was delayed for a period of time, and finally the deposit was paid smoothly in December 2022. The first cooperation was successfully made. The time of the first cooperation is also very special. After receiving the customer’s deposit, Xinyue arranges the purchase raw materials as soon as possible...

Project location：India Product：EFW Stainless steel pipe Standard and material：ASTM A789 SS2205 Specifications：35×1.2x3000mm Application：Heat Exchanger Manufacturing Inquiry time：2022-11-01 Order time：2022-11-15 Shipping time：2023-02-15 Estimated arrival time：2023-3-30 The customer is a local machine manufacturer from India, who had already ordered a batch of 19×1.2x3000mm duplex stainless steel pipes from Xinyue before. After the first order was inspected, Xinyue received another demand for 35×1.2x3000mm stainless steel pipes from the customer. Xinyue quoted the price in time and supply the best service for the customer , sharing status of the prices and exchange rates, and finally confirming the order and receiving the final payment within two weeks. With the support of past experience, customers have more trust in Xinyue and Xinyue’s products. There is no more hesitation like the first time, so the order can be confirmed faster, and shipped faster, delivered perfectly once again. htt...

 Project location：KUWAIT Product：SEAMLESS STEEL PIPE Standard and material：ASTM A 53 GR B Usage：stock Inquiry time：2022.11 Order time：2022.12 Shipping time：2022.12 Arrival time：2023.1 This client is an regular client in Kuwait and a well-known contractor in Kuwait. Since the first cooperation in September 2022, the client once again chooses Xinyue as the third cooperation order supplier. The client frequently and quickly choose Xinyue as the supplier of the order, which is due to the superior quality of Xinyue, the fast delivery time, as well as the professional and high-quality service of the whole order operation. https://www.xysteelpipe.com/xinyue-steel-becomes-long-term-supplier-to-contractors-in-kuwait/

 Galvanized pipe generally refers to galvanized steel pipe (GI pipe), which is an important building material, and its advantages and disadvantages need to be considered before using galvanized pipe. Next, it is about the advantages and disadvantages of galvanized steel pipe. Advantages of galvanized steel pipe: 1. Low processing cost: the cost of hot-dip galvanizing and anti-rust is lower than that of other paint coatings. 2. Durable and durable: hot-dip galvanized steel pipe has the characteristics of surface luster, uniform zinc layer, no missing plating, no dripping, strong adhesion and strong corrosion resistance. The anti-rust thickness can be maintained for more than 50 years without repair; in urban or offshore areas, the standard hot-dip galvanized anti-rust layer can be maintained for 20 years without repair. 3. The toughness of the coating is strong: the galvanized layer forms a special metallurgical structure, which can withstand mechanical damage during transportation ...