The basic difference between stainless steel elbow and elbow is that stainless steel elbow is shorter than elbow. R = 1 to 2 times is the elbow, the larger multiple is called the elbow. In the production process, the cold-formed pipe can be bent by the ready-made straight pipe with pipe bender, which can be completed at one time without secondary anti-corrosion. However, the elbow needs to be customized by the manufacturer, and the order period is long. The price of elbow is higher than that of elbow, but the cost performance ratio is much higher than that of elbow. As we all know, the elbow without antiseptic treatment is easy to damage.

Elbows need to be customized by the manufacturer, and need to be corrosion resistant, and the order cycle is long. Cold bend can be bent with ready-made straight pipe and pipe bender. After one-time completion, there is no need for secondary anti-corrosion. There are petroleum standards for Cold-Formed pipeline construction technology, while there are enterprise standards for west east gas pipeline. However, elbows can be used in open areas. Just considering the cost, you need to cook the elbow, and you can bend it cold. Of course, elbow costs a lot. Sometimes it is necessary to use elbows in narrow areas, such as pipe grooves in stone areas, because the radius of curvature of elbows is very small, usually 6D, while that of elbows is 40d.