The document discusses welding symbols according to BS 499 part 2. It provides examples of common welding symbols including types of butt welds like single-V and single-U, supplementary symbols like those indicating non-destructive testing and peripheral welds, dimension symbols showing throat thickness and leg length, multiple staggered weld elements, and other symbols like plug welds and seam welds. The document serves as a reference for interpreting welding symbols specified in BS 499 part 2.

1. M.S.RogersM.S.RogersM.S.Rogers
Welding Inspection
BS 499 part 2
Course Reference WIS 5

2. M.S.Rogers
Arrow line
Reference line
Arrow side
Other side
BS 499: part 2. Welding Symbols
Other side Arrow side Both sides

3. M.S.Rogers
BS 499: part 2. Welding Symbols
ba
dc

4. M.S.Rogers
BS 499: part 2. Welding Symbols
Flat
Concave
Convex

5. M.S.Rogers
BS 499: part 2. Supplementary
Welding Symbols
Field weld (site weld)
NDT
The component requires
NDT inspection
Welding to be carried out all
round component
(peripheral weld)
WPS
Additional information, the
reference document is
included in the box

6. M.S.Rogers
BS 499: part 2. Welding Symbols
Dimensions
a = Design throat thickness
b = Leg length
a = 0.7 of b
a
b
a 4
4mm throat
b 6
6mm leg

7. M.S.Rogers
BS 499: part 2. Welding Symbols Dimensions
n x l (e)
n = number of weld elements
l = length of each weld element
(e) = distance between each weld
element
3 x 40 (50)
2 x 40 (50)
111
Welds to be
staggered
Process
40 40
50 50

8. M.S.Rogers
BS 499: part 2. Welding Symbols
Single-V Butt Single-U Butt
Single-V Butt flush cap Single-U Butt with sealing run

9. M.S.Rogers
BS 499: part 2. Welding Symbols
Single-bevel butt Double-bevel butt
Single-bevel butt Single-J butt

10. M.S.Rogers
BS 499: part 2. Welding Symbols
Partial penetration single-V butt
10
10

11. M.S.Rogers
BS 499: part 2. Other Welding Symbols
Plug weld
Spot weld
Seam weld
Square Butt weld
Single-V Butt
broad root face
Edge flange weld