Basic Weld Symbol

More Detailed Symbolic Representation of Weld

Table of Weld Symbols

Supplementary Symbols

Complementary Indication

Application of welding symbols

Location of Elements of a Welding Symbol |
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Basic Joints Identification of Arrow Side and Other Side Joint | ||
Butt Joint | Corner Joint | T-Joint |
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Lap Joint | Edge Joint | Process Abbreviations |
![]() | ![]() | Where process abbreviations are to be included in the tail of the welding symbol, reference is made to Table 1, Designation of welding and Allied Processes by Letters, of ANSI/AWS A2.4. |
Typical Welding Symbols | ||
Double-Fillet Welding Symbol | Chain Intermittent Fillet Welding Symbol | Staggered Intermittent Fillet Welding Symbol |
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Plug Welding Symbol | Back Welding Symbol | Backing Welding Symbol |
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Spot Welding Symbol | Stud Welding Symbol | Seam Welding Symbol |
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Square-Groove Welding Symbol | Single-V-Groove Welding Symbol | Double-Bevel-Groove Welding Symbol |
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Symbol with Backgouging | Flare-V-Groove Welding Symbol | Flare-Bevel-Groove Welding Symbol |
![]() | Not Permitted for Bridges | Not Permitted for Bridges |
Mutliple Reference Lines | Complete Penetration | Edge Flange Welding Symbol |
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Flash or Upset Welding Symbol | Melt-Thru Symbol | Joint with Backing |
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Joint with Spacer | Flush Contour Symbol | Convex Contour Symbol |
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Arrow-Side Continuous Fillet Welding |
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Other-Side Continuous Fillet Welding |
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Both-Side Continuous Fillet Welding |
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Size of Single-Fillet Weld |
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Size of Unequal Double-Fillet Welds |
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Size of Fillet Weld having Unequal Legs |
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Lengths and Location of Fillet Welds |
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Fillet Welds with Abrupt Changes in Direction |
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Weld All-Around Symbols |
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Length and Pitch of Increments of Intermittent Welding |
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Length and Pitch of Increments of Chain Intermittent Welding |
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Detail of Steel Pile Splice |
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Horizontal rotated pump |
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Horizontal kettle |
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Hoist |
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Helicoid agitator |
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Heater exchanger |
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Heater |
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Heat recuperator |
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Heat exchanger with nest of tubes |
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Handle |
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Handle |
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Guillotine valve |
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Grid agitator |
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Globe valve |
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Globe valve |
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Globe check valve |
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General heat exchanger |
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General heat exchanger |
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General coupling |
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General compensator |
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Gears volumetric pump |
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Gear Pump |
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Gear |
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Gauged orifice |
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Gate valve 1 connection |
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Gate valve |
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Forced flow atmospheric cooler |
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Flowmeter turbine |
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Flowmeter |
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Flow transmitter / RO |
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Flow indicator |
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Flow |
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Float drainer |
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Float actuator |
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Flexible connector |
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Flexible connector |
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Flat paddle agitator |
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Flanges coupling |
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Flanges (Pair) |
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Flange on fixture + counterflange |
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Flange on fixture + blind flange |
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Flange on fixture |
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Flange |
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Flange |