Company News

Butt welding flanges inventory

Close to the Chinese New Year, in order to cope with the production constraints from year to year, our company expanded production this year and produced a series of carbon steel butt welding flanges and stainless steel butt welding flanges. The material of stainless steel butt welding flange is mainly 304L and 316L. 304 stainless steel is a common material in stainless steel. Its density is 7.93g/cm3. It is also called 18/8 stainless steel in the industry. High temperature 800 degrees, with good processing performance, high toughness, widely used in industry and furniture decoration industry and food and medical industry. The most important elements in 304 are Ni and Cr, but they are not limited to these two elements. Specific requirements are stipulated by product standards.
 Butt welding flanges

Butt-welded flange includes many types and models. Butt-welded steel flange is used for butt welding of flange and tube. It is mainly used in welding technology. It has good use characteristics and performance. Its structure is reasonable and its strength and stiffness are large. It needs to be determined according to specific conditions to ensure the specific use value and performance of butt-welded flange. Withstand high temperature and pressure.
Classification of Stainless Steel Flanges
According to the connection mode between pipeline flange and pipe, it can be divided into five basic types: butt welding flange, threaded flange, flat welding flange, socket welding
flangeand loose sleeve flange. There are many types of flange sealing surface, such as convex surface (RF), concave surface (FM), concave and convex surface (MFM), full plane (FF), tenon and groove surface (TG) and ring connection surface (RJ). Butt welded steel flange is used for butt welding of flange and pipe. Its structure is fair, strength and stiffness are large, it can withstand high temperature and high pressure, repeated bending and temperature fluctuation, and its sealing is reliable. Because stainless steel has good corrosion resistance, it can make structural parts permanent to maintain the integrity of Engineering design. Chromium stainless steel also integrates mechanical strength and high elongation, and is easy to process and manufacture parts.
 Butt welding flanges
Application of butt welding flange

Welded flange has a wide range of uses, which are determined according to different characteristics. It is mostly used in mild medium conditions, such as low-pressure non-purified compressed air and low-pressure circulating water. Its advantages are cheaper price. It is suitable for steel pipe connection with nominal pressure not exceeding 2.5 MPa. The sealing surface of butt-welded flange can be made into smooth type, concave-convex type and mortise-groove type. Smooth butt-welded flange is the most widely used, and the other two kinds of butt-welded flange are also common in use.

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