What is the difference between seamless elbow and welded elbow?

- Dec 03, 2020-

The elbow is a seamless product and is directly processed from a seamless tube; the elbow is a seam and is produced by welding.

1. Appearance difference 

The difference between a seamless elbow and a welded elbow is whether there is a weld, and the thickness of the seamless elbow is not uniform with respect to the thickness of the welded elbow. To

2. Differences in molding process

The process of using seamless elbows is the same as that of welding elbows. The difference is that the manufacturing of elbows is divided into welding, stamping, pushing, and casting. Seamless elbows are made of seamless steel pipes without welds, not welded elbows; welded elbows It is made of steel plate through bending and different welding processes.

3. Different uses

Seamless is mainly used as pipelines or structural parts for conveying fluids, mainly in the machinery industry, while seam elbows are mainly used in the construction industry, such as low-pressure fluids such as water, gas, and compressed air. But the pressure pipes involved are seamless.

4. Available size difference

For most seamless pipe elbow manufacturers in China, their original seamless pipe elbow size is 24 inches and 609.6 mm in outside diameter. In contrast, welded pipe elbows do not have these restrictions, and the size can range from 1-1/2 inch 48.3mm to 100 inches 2540mm.

5. Different prices

Because the seamless production process is more complicated, the price is more expensive than the seam elbow, and the seam is mainly made of steel plate (steel strip) secondary welding, which is cheap and widely used.

seamless elbow

The products of the JIADE Group include flanges, elbows, tees, reducers, pipe caps, forged pipe fittings and accessories. The specifications are complete, which can meet ANSI/ASME, MSS, DIN, JIS, BS and other standards, and users can provide technical drawings for processing and manufacturing. Product materials include carbon steel (A105, A106, etc.), stainless steel (304, 304L, 316, 316L, two-way stainless steel, etc.) and alloy steel (ASTM A234 WP1, WP12, WP11, WP22, etc.). It is widely used in petroleum, chemical, natural gas, fertilizer, power plants, metallurgy, shipbuilding, food, paper, pharmaceuticals, urban construction and other industrial projects. While meeting the needs of domestic users, it also partially exports to Europe, the United States, the Middle East and Southeast Asian countries and regions. 

If you require further information or you do not see what yo need in our web,please do not hesitate to contact us. Our customer service specialists will be happy to help you.info@jiade-group.com