Changsha Xiangjia Metal Materical Co., Ltd.

The material and steel grade of   high-pressure boiler tubes   have strict requirements. They are designed to work under high temperature and high pressure conditions. A large amount of water vapor will be produced in the high temperature working environment, which can cause corrosion of the steel pipes. That require the steel used in high-pressure boiler tubes to have good corrosion resistance and structural stability. High-pressure boiler tubes are used to make superheater tubes, reheater tubes, air ducts, and main steam pipes for high-pressure and ultra-high-pressure boilers. The low and medium pressure boiler tubes are executed according to national standard 3087, while the high-pressure boiler tubes are executed according to national standard 5310. The outer diameter of the hot-rolled tubes for high-pressure boiler tubes usually ranges from 22mm to 530mm, with varying wall thicknesses of 20mm to 70mm. The outer diameter of the cold-drawn tubes ranges from 10mm to 108mm, with vary

The most commonly used method of connecting   large-diameter spiral steel pipes   is welding. However, manufacturers also use threaded connections, flange connections, socket connections, and groove connections in projects. In the post,   Xiangjiasteel   would like to introduce you some details about three main connections. 1. Welding and Flange Connection Welding and flange connections are traditional methods of connecting spiral pipes. These methods do not fully meet market demands in terms of safety, sealing performance, cost efficiency, and repair efficiency. They are mainly used for water transmission pipelines, oil and gas pipelines, chemical pipelines, and power pipelines. 2. Clamp Fitting Connection Clamp fitting connections are an advanced method of pipe connections. They can be used for both exposed and buried installations, accommodating both rigid and flexible joints.  3. Groove Fitting Connection Groove fitting connections, also known as clamp connections, have become the

With the development of building materials markets, we have various types of steel pipes in construction. In order to help you understand them, we will briefly introduce the differences between   seamless steel pipes   and   welded steel pipes   here: 1. Different processing techniques: Seamless pipes are made of carbon steel or alloy steel. The processing techniques for seamless pipes include cold drawing and hot rolling, while welded pipes are generally formed by welding. 2. Different uses: Seamless pipes are mainly used as pipelines or structural components for fluid transportation, primarily in the mechanical industry. Welded steel pipes are mainly used in the construction industry for low-pressure fluids such as water, gas, and compressed air. However, seamless steel pipes are used for pressure pipelines. 4. Different prices: Due to the complex production process of seamless steel pipes, their prices are higher compared to welded steel pipes. Welded steel pipes are mainly made by

Oil casing pipe   is a large-diameter pipe that is used to stabilize the oil and gas wellbore or hole. Casing pipe is inserted into the wellbore and cemented in place to help isolate the formations and prevent collapse, while also allowing for the circulation of drilling mud to facilitate drilling and production. The grades of steel used for oil casing pipe is H40, J55, K55, N80, L80, C90, T95, P110, Q125, and V150. The end processing forms of casing pipe include short round thread, long round thread, trapezoidal thread, and special buckle, among others.  ​ Oil casing pipe is primarily used in drilling operations and provides support to the wellbore during drilling and ensures the normal operation of the entire oil well after completion, which play a crucial role in the industry: 1. Oil casing pipe are used in large quantities and incur significant expenses. There is great potential for cost savings and cost reduction. The consumption of well pipes can be estimated based on the annual