Aug. 04, 2025

How to improve the hardness of large diameter elbows?

Improving the hardness of large-diameter elbows can be achieved through material selection, heat treatment, and surface treatment. Specific measures are as follows:

Aug. 01, 2025

Pickling and passivation of stainless steel flanges

Pickling and passivation of stainless steel flanges is a key step in the surface treatment process, designed to remove scale, rust, and impurities while enhancing corrosion resistance. The following is a detailed description of the pickling and passivation process for stainless steel flanges:

Jul. 30, 2025

What are the methods for elbow manufacturers to identify stainless steel elbows

To ensure the material and quality of stainless steel elbows meet standards, elbow manufacturers typically use the following identification methods:

Jul. 28, 2025

How to improve the service life of stainless steel flanges?

In the field of modern industrial manufacturing, stainless steel pipe flanges, as an important connecting element, are widely used in many industries such as petrochemicals, pharmaceuticals, and food processing, and the quality and installation of flanges directly affect the efficiency of pipeline transportation. Changsha Fengshuo Machinery provides you with practical tips to extend the life of stainless steel flanges with more than ten years of flange production experience.

Jul. 23, 2025

The core difference between seamless elbows and seamed elbows lies in the manufacturing process, which directly leads to significant differences in their structure, performance, application scenarios and costs. The main differences are as follows:

The core difference between seamless elbows and seamed elbows lies in the manufacturing process, which directly leads to significant differences in their structure, performance, application scenarios and cost. The main differences are as follows:

Jul. 21, 2025

How to choose the right stainless steel tee product

There are many connection methods for stainless steel tees, such as: clamping, welding, groove, ring pressing, etc. Different connection methods can also achieve firm connection in connection, and resolutely prevent the problem of loose pipes and water leakage. Among them, the double clamping connection method has outstanding advantages, the cost of pipe fittings is relatively low, no open flame is required for installation and use, the safety of the construction site is maintained, the pipe fittings are firmly connected and sealed, and the connection technology is mature and relatively stable.

Jul. 17, 2025

Six processing methods for stainless steel pipe fittings

Stainless steel pipe fittings are a type of pipe fittings. They are made of stainless steel materials, so they are called stainless steel pipe fittings. They include stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers, stainless steel pipe caps, etc. According to the connection method, they can be divided into four categories: socket-type stainless steel pipe fittings, threaded stainless steel pipe fittings, flanged stainless steel pipe fittings and welded stainless steel pipe fittings.

Jul. 14, 2025

Various material grades and type test specifications for elbows in stainless steel pipe fittings

The various materials of elbows in stainless steel pipe fittings are 304, 316L, 2205, etc., which are more common. 304 316L stainless steel is a common corrosion-resistant steel, belonging to chromium-nickel stainless steel. It has good corrosion resistance and mechanical properties and is one of the widely used stainless steel materials. 2205 duplex stainless steel is a stainless steel with two phase structures of austenite and ferrite. It has high strength, excellent corrosion resistance and good welding performance, meeting the occasions of high strength and corrosion resistance, so 2205 stainless steel elbows are often used in the fields of oil and gas,

Jul. 11, 2025

What is the difference between butt welding flange and flat welding flange?

Weld Neck Flange (WN) and Slip-On Flange (SO) are two commonly used flange connection methods in industrial pipeline systems. They have obvious differences in structure, welding method, applicable working conditions and performance characteristics.