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All-Around symbol question

Tue, 22 Nov 2022 07:51:25 GMT

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Good morning All,I have a question on the use of the all-around symbol as defined in AWS-A2.4. Unless I missing something it doesn't appear to define whether or not all-around is only used in a "circular" or multi plane "linear" segments. In other words, does it have to form a closed loop, or could it have different start and end locations across multiple planes?I have a weldment with a single weld type and size with multiple direction changes, but it does not form a complete loop. Rather than place numerous welding symbols all over the drawing, or make an ugly octopus of weld arrows pointing to each change of direction, I would like to be clean and use the all-around symbol, but I'm not sure if that is proper according to AWS. Any advice would be greatly appreciated.Thanks ahead of time!
Reply:From the 2020 revision of AWS A2.4Section 6.11.1:A continuous weld, whether a single or combined type, extending around a series of connected joints, may be specified by the addition of the weld-all-around symbol...
Reply:Thoriated, that is a very good and precise answer. Thank you! On your advice about TYP, unfortunately, I do not think that will work in my situation because the welder would not know were to end unless I call every change of direction. Maybe I could use WELD FROM A TO B in the tail?
Reply:Here is a list of abbreviation.There are a lot different list but most are very to each other But the could have a list of symptoms and the symbols.If does not have the contact the draftsman aka Engineer Welding symbols change every few year so working with old drawings my have differents to today's welding symbols A/C: Air ConditionerACI: American Concrete InstituteADA: Americans with Disabilities Act of 1992A.F.F.: Above Finished FloorA.F.G.: Above Finished GradeAIA: American Institute of Architects or American Insurance AssociationAIEE: American Institute of Electrical EngineersAISC: American Institute of Steel ConstructionAISI: American and Steel InstituteANSI: American National Standards InsituteAPCIA: American Property Casualty Insurance AssociationASCE: American Soiety of Civil EngineersASME: American Society of Mechanical EngineersASTM: American Society for Testing and MaterialsAWG: American Wire GaugeB.O.F.: Bottom of FootingB.O.M: Bill of MaterialBOT: BottomB.O.W.: Bottom of WallBP: Blue Print (or B/P)Brz.: BronzeBV: Butterfly ValveCAD: Cadmium or Computer-Aided DraftingCBORE: CounterboreC.C.: Center to CenterC.D.: Construction DocumentC.F.M.: Cubic Feet per MinuteCFS: Cubic Feet per SecondC.I.: Cast IronCL.: ClosetCL: Center LIneCLG.: CeilingCMU: Concrete Masonry UnitC.O.: CleanoutCont.: ContinuousCRES: Corrosion-Resistant SteelCSINK: CountersinkCU. FT.: Cubic FeetCU. YD.: Cubic YardD.S.: DownspoutDia.: DiameterDim.: DimensionDN.: DownDP: Damp-Proofing, Dew Point, or Distribution PanelDWG: DrawingEa.: EachED: Edge DistanceE.F.: Exhaust FanEQ: Equal, or EquallyExc: ExcavateE.W.: Each WayExt.: ExteriorFACP: Fire Alarm Control PanelFAO: Finish All OverF.C.O.: Floor cleanoutF.D.: Floor DrainFin.: FinishF.F.L.: Finished Floor LevelFL: Floor LevelFRPF: FireproofFS: Far SideFTG: FittingGalv.: GalvanizedG.C.: General ContractorG.F.C.I. or G.F.I.: Ground-Fault Circuit-InterrupterGPM: Gallons Per MinuteG.T.: Glazed TileGyp.: GypsumH.B.: Hose BibHDCP: Handicapped (better if referred to as "Accessible")HDPE: High-Density PolyethyleneHRS: Hot Rolled SteelHV: High VoltageH.V.A.C.: Heating, Ventilation, and Air ConditioningH.W.: Hot WaterIAW: In Accordance WithID: Inner DiameterIE: Invert ElevationIEEE: Institute of Electrical and Electronics EngineersIn.: InchInsul.: InsulationISO: International Organization for StandardsInt.: InteriorInv.: InvertJ-Box: Junction BoxJct.: JunctionJst.: JoistkW: KilowattLDD: LImited Dimension DrawingLFT.: Linear FeetLH: Left HandLL: Live LoadLM: List of MaterialsLt.: LightLtg.: LightingL.V.L.: Laminated Veneer LumberMH: ManholeMas.: MasonryMAX: MaxiumumMBW: Measurement Between WiresMtl.: MaterialMFG.: ManufacturingMin.: MinimumMOW: Measurement Over WiresNEC: National Electrical CodeN.I.C.: Not In ContractNOM: NominalN.T.S.: Not to scaleOAL: Overall LengthO.C.: On CenterO.D.: Outside DiameterOPNG.: Opening or Rough OpeningPCC: Portland Cement ConcretePCI: Property Casualty Insurers Association of AmericaPCS: PiecesPL.: PlasterP.L.: Property Line (or Parts List)Plywd.: PlywoodP.S.F.: Pounds per Square FootP.S.I.: Pounds per Square InchPtd.: PaintedPVC: Polyvinyl ChlorideQTY: QuantityR: RadiusRC: Reinforced ConcreteRD: Roof Drain, Round, or Receptacle Distribution PanelR.D.L.: Roof Drain LeaderREBAR: Reinforcing BarREQD: RequiredRH: Right HandeR.O.: Rough OpeningR.O.W.: Right of WayReinf.: ReinforcedSan.: SanitarySC: Sharp CornersS.D.: Smoke DetectorSect.: SectionSht.: SheetSht'g.: SheathingSpecs.: SpecificationsSQ. FT.: Square FeetSQ. IN.: Square InchesSS: Stainless Steel, Setscrew, Soil Stack, Service Sink, or Slop SinkStd.: StandardStl: SteelS.Y.: Square YardT&B: Top and BottomT&G: Tongue and GrooveT.O.: Top ofT.O.B.: Top of BeamT.O.C.: Top of Curb or Top of ConcreteT.O.F.: Top of FootingT.O.J.: Top of JoistT.O.M.: Top of MasonryT.O.W.: Top of WallTTC: Telephone Terminal ClosetUON: Unless Otherwise NotedVA.: VoltageV.B.: Vapor BarrierV.I.F.: Verify in FieldW.C.: Water Closet (Toilet)Wd.: WoodWdw.: WindowW.I.: Wrought IronW.I.C.: Walk-In ClosetWL: Water LevelW/O: WithoutWp.: WeatherproofWS: Weatherstripping or Water StopWt.: WeightWtr. Htr. : Water HeaterAerated concreteAll About Autoclaved Aerated Concrete (AAC)
Reply:

Originally Posted by Shubyjames

Thoriated, that is a very good and precise answer. Thank you! On your advice about TYP, unfortunately, I do not think that will work in my situation because the welder would not know were to end unless I call every change of direction. Maybe I could use WELD FROM A TO B in the tail?
Reply:Thoriated, thanks again for complete answers. See pasted pic. It will be a 4mm fillet weld that will follow the red path.

Reply:Hmm yeah that is a tricky one. ISO2553 would definitely let you get away with a single welding symbol.I'm not sure if you have any way other than doing the arrow-pus method or multiple welding symbols in order to be fully conforming to the the A2.4. It's unfortunate each straight weld joint is a different length as well. The AWS website has a non-member forum, you could try asking in there. It can be rather dead usually so it might not be very useful.You could do one welding symbol with three arrows pointing to the bracket that uses "TYP" (represented by the blue lines on the screen grab below) and one symbol with three arrows for the other fillets (represented by black on the screen grab below). The "TYP" would be obvious (I think) that the welder should treat both brackets the same in regards to welding so you could get away with no welding symbols for one of the two brackets. That leaves you with two 3-arrow fillet welding symbols instead of a single 9-arrow fillet welding symbol.

Also it's hard to tell in the picture but are you sure that where the fillet wraps around the ends of those brackets that it isn't some kind of groove weld instead of a fillet? Depending on where that radius is it might be a type of flare bevel groove weld rather than a true fillet. The A2.4 does consider welding on a radius to be a flare bevel groove weld, it's why they don't allow the weld-all-around symbol for square tubing, because two sides are fillets and two sides are flare bevel. If it is it needs its own symbol anyways.

Edit to say that I would do "TYP 2 PL" or "2 PLACES TYP" if you go the two 3-arrow symbol method. That should make it clear there's two locations which are meant to have identical welds.Last edited by Thoriated Wolfram; 9 Hours Ago at 06:19 PM.

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