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Connection:

Weld-On

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Weld-On is the most widely used joint type used in attaching pipe systems. Also, it is the most renowned alternative way used for pipe-to-pipe or tube-to-tube connection, flanges, valves, hoses, and tubes. Weld-On follows the ASME B16.25 standards and specifications. When joining pipes with the weld-on technique, the process can be carried out using a machine or with the hand. It is widely used as it provides a joining method economically. Weld-On can be done on any tool and comes in different types and forms. More so, there are different butt joints which will be explained in the article.

Weld-On SAE Flat Side
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1. What is Weld-On ?

Weld-On is done when the metal pieces are positioned at the same level to be joined by welding.  Weld-On is the most popular type of weld joint used in many different industries due to its economical nature option. Weld-On is suitable for joining pipes, tubes, flanges, and other tools together and done according to the ASME B16.11 standards. Weld-On can be done using an automated means or by hand. 

2. What are the types of Weld-On?

Our SAE Flange comes with a bevel end 30-degree flare. The end connection is used to weld on the pipe and form a connection. The weld-on joint is available in various ways. As numerous as they are, they are unique as they all serve different purposes.

 

The various types are explained below:

  • Single-sided full penetration weld-on

  • Single-sided partial penetration weld-on 

  • Double-sided full penetration weld-on

  • Double-sided full penetration weld-on

Square Weld-On: the square butt weld is commonly adopted when the metal pieces to be joined are less or equal to 3/16 inches. Although the square weld-on is very strong, however, it is not recommended for applications where the system will be subjected to heavy loads and incessant use.

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Grooved Weld-On: this is mostly used for metal piece joining when the thickness of the metal pieces is more than 3/16 inches. This method is better in providing the structure with enough strength to withstand heavy load and impact. The grooved weld-on can either be single grooved which is welding on a single side or double-grooved which is for both sides. The double-grooved is best when the projects are numerous.

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V Weld-On: this is used for pieces measuring between 1/4 to 3/4 inches in thickness. The angle used for the V weld-on is 60⁰ for metal plates and 75⁰ for pipes. The method is stronger than the square weld-on, however, it is more costly to use. 

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Double V Weld-On: the double V weld-on is recommended for joining metal pieces thicker than 3/4 inches, nonetheless, it can be used for less thick metals when the impact load is more.

3. What are the advantages of weld-on?

Here are some of the advantages of using weld-on:

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  • Weld-On can be used for joining metals with a variety of materials such as stainless steel, aluminum, titanium, etc.

  • The welding process helps exterminate any contaminant and also creates a solid and tight joint.

  • The process can be done using an automated or manual method.

  • The welded joint can be placed in an area with restricted space.

  • The seal created is strong and durable to last for a long period.

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