weld symbol question

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I am working on a project where on the reference line after the depth of preparation dimension there is a plus sign + then another dimension before the bevel symbol.Usually there is a depth of prep dimension and in parentheses(effective groove weld size).There is also a secondary operation which has the final weld size.Would the plus sign be used instead of parentheses?I am concerned since these welds have to be put through x-ray.
Reply:Sorry buddy, I know a little about reading welding symbols but you got me there. Good luck!If you don't have the time to do it right, then you definitely don't have the time to do it over.
Reply:Looking through AWS A2.4-98, the bible on symbols, I see that the "groove weld size" may be specified within parentheses to the left of the groove weld symbol, and that the "depth of bevel" may also be specified to the left of groove weld size.  These can be specified alone or in combination.I do not see anywhere that a plus sign "+" is used in a welding symbol, except as part of a statement of dimensional tolerance (+/-) in the tail of the symbol.I suspect that this is a non-standard designation, so it is meaningless without an explanation of the intent by your customer.Let us know what you find out, and provide a sketch of the symbol so we can be clear on what we're talking about.
Reply:can you post a pic of the symbolChuckASME Pressure Vessel welder
Reply:Here is a proper example of the groove weld symbol, showing depth of the "V" joint and the depth of weld penetration.  In this example the "V" is 3/8" deep and the required weld is 1/2" deep (1/8" beyond the root).The source for this sketch is:  http://www.unified-eng.com/scitech/weld/groove.html Attached Images
Reply:here'a picture maybe this might help. Attached FilesWeld symbol2.zip (113.6 KB, 85 views)
Reply:the weld symbol that you shown dose not look right the triangle on the bottom is upside down and it's indicating a 12"X4" fillet weld and the top one is a 12" fillet but i could be wrongChuckASME Pressure Vessel welder
Reply:The symbol on the bottom of the reference line, known as the "arrow side", is a "bevel" joint preparation.  This indicates that the side the arrow is pointing at, the side we are looking at in the sketch, is to be beveled.The 12 on the bevel joint should indicate the depth of the bevel, and apparently it is 12 mm deep.  What is the thickness of this plate, does a 12 mm deep bevel make sense?The "CJP" in the tail stands for "complete joint penetration".The symbol on the top of the reference line, indicates the weld on the "other side" from where the arrow is pointing.  This shows a fillet weld on the other side of the bevel.  The leg size of the fillet is shown as 12, again I assume this is 12 mm.As for the mysterious "+4", this does not appear to be a standard AWS recognized designation.  Maybe the thickness of that plate would give a clue, for instance is the plate 16 mm or more in thickness, maybe the "+4" indicates a tolerance on the bevel depth, meaning the bevel depth can range from 12 mm to 16 mm?
Reply:ok so i was wrong i don't do metric ChuckASME Pressure Vessel welder
Reply:Originally Posted by pulserThe symbol on the bottom of the reference line, known as the "arrow side", is a "bevel" joint preparation.  This indicates that the side the arrow is pointing at, the side we are looking at in the sketch, is to be beveled.The 12 on the bevel joint should indicate the depth of the bevel, and apparently it is 12 mm deep.  What is the thickness of this plate, does a 12 mm deep bevel make sense?The "CJP" in the tail stands for "complete joint penetration".The symbol on the top of the reference line, indicates the weld on the "other side" from where the arrow is pointing.  This shows a fillet weld on the other side of the bevel.  The leg size of the fillet is shown as 12, again I assume this is 12 mm.As for the mysterious "+4", this does not appear to be a standard AWS recognized designation.  Maybe the thickness of that plate would give a clue, for instance is the plate 16 mm or more in thickness, maybe the "+4" indicates a tolerance on the bevel depth, meaning the bevel depth can range from 12 mm to 16 mm?