What should I pay attention to when using a neck butt welding flange?

All metal with neck butt welding flange fittings will react with atmospheric oxygen, forming an oxide film on the surface. The product should be installed according to the instructions, so as to ensure the normal operation of the product in the future. Nowadays, there are many product models. With the continuous innovation of science and technology, the updated products are more and more in line with people's needs. In particular, the company's products are constantly improving in performance.

If the neck butt welding flange is welded with the same type of chromium stainless steel electrode (G202, G207), it must be preheated to more than 300 after welding, and slowly cooled at about 700. If the weldment cannot be heat-treated after welding, the electrode with neck weld flange fittings should be used.

What should I pay attention to when using a neck butt welding flange?

1. Flange fittings with neck butt welding have good corrosion resistance and oxidation resistance in welding rod and butt welding flange, widely used in chemical fertilizer, chemical industry, petroleum and medical machinery manufacturing.

2. During welding of flange fittings with neck butt welding, carbides are precipitated by repeated heating, resulting in decreased mechanical properties and corrosion resistance.

3. Hardening American standard flange with neck butt welding flange fittings is larger after welding and easy to crack. If the same type of chromium stainless steel electrode (G202, G207) welding, must be more than 300 preheating and 700 slow cooling treatment after welding. If the weldment cannot be heat-treated after welding, the electrode with neck weld flange fittings (A107, A207) should be selected.

The birth of products to human life has brought a lot of convenience, products are not static, but with the development of science and technology innovation. Therefore, it is very important to choose the right product for your own benefit.

Due to the good corrosion resistance of stainless steel, the structural members can be permanently maintained with the integrity of the engineering design. Chrome stainless steel stamping flanges also combine mechanical strength with high ductility and are easy to manufacture to meet the needs of architects and structural designers.