[Summary description] What is the difference between a seamless elbow and a straight seam elbow? Actually, to the layman, there is no difference. If you look at both elbows, you can't see the difference with the naked eye.

In practice, the main differences are as follows:

From the appearance point of view, the appearance of seamless elbow and straight seam elbow is the same, there is no difference, but the thickness of seamless elbow is more uniform than that of straight seam.

Another aspect is that the original material of the seamless elbow is a seamless steel pipe, which is a product made of a seamless steel pipe. The straight seam elbow is made of straight seam steel pipe or butt welded elbow (ie, steel plate limit), and then the weld is ground. The industry calls it counterfeit seamless

What is the difference between a seamless elbow and a straight seam elbow? Actually, to the layman, there is no difference. If you look at both elbows, you can't see the difference with the naked eye.

In practice, the main differences are as follows:

From the appearance point of view, the appearance of seamless elbow and straight seam elbow is the same, there is no difference, but the thickness of seamless elbow is more uniform than that of straight seam.

Another aspect is that the original material of the seamless elbow is a seamless steel pipe, which is a product made of a seamless steel pipe. The straight seam elbow is made of straight seam steel pipe or butt welded elbow (ie, steel plate limit), and then the weld is ground. The industry calls it counterfeit seamless.

After that, the performance specifications of seamless elbows are generally GB/T12459-2005 national standard codes, and the general performance specifications of straight seam or butt welded elbows are GB/T13401-2005.

So what is the difference between a seamless elbow and a straight seam elbow? There are a lot more. Both are the same basic process produced for general elbows.

Straight seam elbows and seamless elbows are classified according to viewpoints. There are three more commonly used elbows, 45° and 90°180°. Others include 60° and other abnormal viewpoint elbows according to engineering requirements. Materials for elbows include stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics.

According to the production method, it can be divided into push, limit, forging, casting, etc.

It can be divided into national standards, electrical standards, ship standards, chemical standards, water standards, American standards, German standards, Japanese standards, Russian standards, etc.

According to its radius of curvature: it can be divided into long radius elbow and short radius elbow. Long radius elbow refers to the outer diameter of the pipe with a radius of curvature equal to 1.5 times, ie R = 1.5D; Short radius elbow refers to the radius of curvature equal to the outer diameter of the pipe, ie R = 1.0D. (D is the diameter of the elbow and R is the radius of curvature).