What is an Acceptable Weld in Welding?

An acceptable weld is defined as a weld that meets the applicable requirements. The requirements for an acceptable weld depend on:

  • the type of welding being done,
  • the materials being used,
  • the environment in which the welding is taking place,
  • and the purpose of the weld.

For example, a weld that is strong enough to hold two pieces of metal together in a factory setting may not be strong enough to hold together two parts of a car frame during a car crash. Similarly, a weld that is adequate for use in an outdoor setting may not be adequate for use in an underwater setting.

What is an acceptable fillet weld?

A fillet weld is an internal or external join between two members, in which the weld profile is triangular in cross-section. The term “fillet weld” originates from the Latin word for “little fish” due to its similarity in shape to a small fish.

What are the characteristics of acceptable weld profiles?

An acceptable fillet weld must meet the following criteria:

  • The root face of the weld must be flush with or below the original surface of the members being joined.
  • The weld bead must be continuous and free of cracks, voids, or other defects.
  • The welding current must be within the range specified by the manufacturer of the welding machine.

Unacceptable fillet weld profiles

They include those that are convex, concave or have a “dog-leg” shape.

What do we mean by acceptable criteria for completed welds?

There are many factors that must be considered when determining the acceptability of a completed weld. Some of these factors include:

  • The type of welding being done.
  • The materials being used.
  • The environment in which the welding is taking place.


When welding, it is important to follow all safety precautions and to use the proper equipment. In addition, it is important to make sure that the area in which you are welding is clean and free of debris. It is also important to create an acceptable weld by following the specific requirements for the type of welding you are doing, the materials you are using, and the environment in which you are welding.

Related Links

Acceptable and Unacceptable Weld Profiles
22 possible causes of weld metal porosity
Weld Fusion vs. Weld Penetration
Arc Welding 101: Understanding acceptable undercut
Acceptance Criteria for Completed Welds

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