WELDING SYMBOLS

WELDING SYMBOLS :

CODE : BS EN ISO 22553 / 2553.

• Single bevel left hand side should be straight.

• U place arrow side symbol on solid line.
• U place arrow other side symbol on dash line.
• Symbol is placed on identification line is other side.
• Right angle lines are on left side of symbol.
• MR – removable backing strip.
• M – Permanent backing strip.
• Cross sectional dimensions [ z,a,s,…etc.,] to the left of the symbol.
• Linear dimensions [ length, distance..] to the right of the symbol.
• Symmetrical weld symbol: different each side of the arrow.
• Arrow line or arrow side.
• Solid line, reference line, continuous line.
• Identification line, dashed line, dotted line.
• Elongated Z is to represent staggered fillet weld.
• Left side to the weld symbol is used to represent leg length.
• Right side to the weld symbol is used to represent staggered fillet weld.
• Flag symbol represents site weld.
• 111 represent welding process.
• 111 – MMA ; 121 – SAW ; 131 – MIG ; 141 – TIG ; 135 – MAG.

AWS A2.4 :

• There is no dash line.
• Arrow side symbol is placed below the solid line.
• Way staggered is represented is the difference in AWS & BS EN
• Staggered means stretch welding.