what is meant if the weld symbol is placed below the reference line

What is meant if the weld symbol is placed below the reference line? If the weld symbol is placed below the reference line, it typically indicates that the weld is to be made on the …

what-is-meant-if-the-weld-symbol-is-placed-below-the-reference-line

What is meant if the weld symbol is placed below the reference line?

If the weld symbol is placed below the reference line, it typically indicates that the weld is to be made on the arrow side of the welding symbol. This placement is used to specify the location of the weld relative to the reference line.

arrow-side-welding-symbol

What is meant if the weld symbol is placed above the reference line?

If the weld symbol is placed above the reference line, it typically indicates that the weld is to be made on the other side of the arrow in the welding symbol. This placement conveys the location of the weld relative to the reference line.

other-side-welding-symbol

Here are a few possible interpretations when the weld symbol is positioned below the reference line:

  1. Weld on the Opposite Side: The weld is to be made on the side opposite to the side of the arrow in the welding symbol. This indicates that the welding operation should be performed on the underside or backside of the joint.
  2. Backside Weld: The weld symbol below the reference line can indicate that the weld is to be made on the backside of the joint. This is commonly seen in situations where access to the front side is limited or not desired.
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If a weld symbol is placed below the reference line, weld shall be made on the arrow side, but if weld symbol is placed above the reference line, weld will be made on the other side as explained below:

arrow-side-and-other-side-Fillet-weld-symbols
  1. Arrow Side Weld: The side of the joint indicated by the arrow in the welding symbol is referred to as the “arrow side.” The placement of the weld symbol above the reference line indicates that a weld is required on this side of the joint.
  2. Other Side Weld: The term “other side weld” refers to the opposite side of the joint, which is not indicated by the arrow in the welding symbol. The placement of the weld symbol above the reference line signifies that a weld is also required on this side of the joint.

In summary, when the weld symbol is positioned above the reference line and includes the keywords “arrow side” and “other side weld,” it indicates that welding operations need to be performed on both sides of the joint.

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Sandeep Kumar is a highly experienced welding professional and author known for his expertise in welding symbols. With certifications including IWE, AWS-CWI, and ASNT NDT Level III.