Technical requirements for carbon steel weld neck flanges

Carbon steel weld neck flanges produced according to the size and tolerance range required by the national standard are also called two-standard flanges, which are different from ANSI B16.5 Class150 Carbon Steel Weld Neck Flanges not manufactured according to the standard size. Usually some unscrupulous merchants will reduce the thickness and outer diameter of carbon steel weld neck flanges to achieve the purpose of saving materials. They can also process carbon steel weld neck flanges with scrap steel or corner steel.

　　Often this kind of steel is not up to the standard of chemical composition and mechanical properties of the scrap, or even the use of black steel plant private steel production carbon steel weld neck flanges, this kind of private steel-making technology can not guarantee mechanical properties and weldability, when used may not be able to weld with steel pipes, or the steel itself cracks, pores and other welding up and down. The water is leaking. So when buying carbon steel weld neck flanges, use carbon steel weld neck flanges as far as possible.

　　Carbon steel weld neck flanges are reliable and reliable. It has two sealing surfaces, and the sealing surface material of ball valve is widely used in various plastics, good sealing, can achieve complete sealing. Carbon steel weld neck flanges can be used in medium with suspended solid particles because of its wiping property during opening and closing.