Welding Symbols(ISO 2553)

ELEMENTARY WELD SYMBOLSSquare Groove Weld

Single V Groove Weld

ELEMENTARY WELD SYMBOLSSingle Bevel Groove Weld

Single V Groove Weld with Broad Root Face

ELEMENTARY WELD SYMBOLSSingle Bevel Groove Weld with Broad Root Face

Single U Groove Weld

ELEMENTARY WELD SYMBOLSSingle J Groove Weld

Backing Weld

ELEMENTARY WELD SYMBOLSFillet Weld

Plug / Slot Weld

ELEMENTARY WELD SYMBOLSSpot Weld

Seam Weld

ELEMENTARY WELD SYMBOLSEdge Weld

Surfacing

SUPPLEMENTARY SYMBOLS

FlatConvex Concave

Weld Profile

SUPPLEMENTARY SYMBOLS

Toes blended smoothly

Permanent Backing Strip

M

Removable Backing Strip

MR

SUPPLEMENTARY SYMBOLSPeripheral Welds

SUPPLEMENTARY SYMBOLS

Site welds

SUPPLEMENTARY SYMBOLSTail Optional)

Sequence of Information in the Tail

• Process (as per ISO 4063)

• Acceptance Level (as per ISO 5817 or ISO 10042)

• Working Position (as per ISO 6947)

• Filler Materials (as per ISO 544 or ISO 2560 or ISO 3581)

EXAMPLES OF APPLICATIONMethod of representation

Weld Joint

Arrow Line

Reference Line (Continuous)

Reference Line (Dashed)

EXAMPLES OF APPLICATIONWelding on the Arrow Side

Arrow Side

Other Side

EXAMPLES OF APPLICATIONWelding on the Other Side

Arrow Side

Other Side

EXAMPLES OF APPLICATIONWelding on the Other Side

Other Side

Arrow Side

EXAMPLES OF APPLICATIONWelding on the Arrow Side

Other Side

Arrow Side

EXAMPLES OF APPLICATIONWhich is the Other Side in this case?

Side A

Side C

Side B

Side D

EXAMPLES OF APPLICATIONWelding on both Sides

Other Side

Arrow Side

EXAMPLES OF APPLICATIONSymmetric Welding on both Sides

EXAMPLES OF APPLICATIONPointing of Arrows for Bevel and J Joints

OR

EXAMPLES OF APPLICATIONPointing of Arrows for Bevel and J Joints

DIMENSIONING OF WELDSButt Joints

l

s l s

DIMENSIONING OF WELDSFillet Welds

z5 l5

5

a5 l

5

DIMENSIONING OF WELDSFillet Welds

a a a

DIMENSIONING OF WELDSIntermittent Fillet Welds

l (e) l (e)

z n x l (e)

z n x l (e)

DIMENSIONING OF WELDSStaggered Intermittent Fillet Welds

z n x l (e)

z n x l (e)

l (e) l (e)

l (e) l (e)

DIMENSIONING OF WELDSSpot Weld

d n (e)

d

e e

DIMENSIONING OF WELDSSeam Weld

d n x l (e)

d

l e

DIMENSIONING OF WELDSPlug Weld

d n (e)

d

e e

DIMENSIONING OF WELDSSlot Weld

d n x l (e)

d

l e