terms used to describe welds are given in Figure 6-16.
The AWS welding symbol shown in Figure 6-17 was
developed as a standard by the American Welding
Society. This symbol is used on drawings to indicate the
type of joint, placement, and the type of weld to be made.
The symbol may also include other information, such as
finish and contour of the completed weld.
It is important to study and understand each part of
the welding symbol. Figure 6-18 is a table showing basic
weld symbols that are used with the AWS welding
Chapter 6 Weld Joints and Weld Types 61
Bevel angle
Root face
thickness
Groove angle
Root opening
Riser
Figure 6-15. Weld joint terms.
Crown
height
Weld toe
Weld crown
Weld toe
Root penetration
Root
penetration
Weld crown
Weld throat
Leg length
Leg length
Figure 6-16. Weld and weld area terms.
Groove angle; included angle of
countersink for plug welds
Length of weld
Pitch (center-to-center
spacing) of welds
Field weld symbol
Arrow connecting
reference line to
arrow side member
of joint or arrow
side of joint
Weld-all-
around symbol
Number of spot, seam, stud,
plug, slot, or projection welds
Weld symbol
Tail (may be omitted
when reference
is not used)
Specification,
process, or
other reference
Depth of bevel; size or
strength for certain welds
Groove weld size
Root opening; depth of filling
for plug and slot welds
Finish symbol
Contour symbol
Reference
line
Elements in this area remain as shown
when tail and arrow are reversed
Weld symbols shall be contained
within the length of the reference line
T
S(E) L-P
F
A
R
(N)
{
{
}
}
BOTH
SIDES
ARROW
OTHER
SIDE
SIDE
Figure 6-17. The AWS welding symbol conveys specific and complete information to the welder.
(Printed with permission of the American Welding Society)