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ASME P Material Numbers Explained ASME has adopted their own designation for welding processes, which are very different from the ISO definitions adopted.

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Presentation on theme: "ASME P Material Numbers Explained ASME has adopted their own designation for welding processes, which are very different from the ISO definitions adopted."— Presentation transcript:

1 ASME P Material Numbers Explained ASME has adopted their own designation for welding processes, which are very different from the ISO definitions adopted by EN24063. Designation Description OFWOxyfuel Gas Welding SMAWShielded Metal Arc Welding (MMA) SAWSubmerged Arc Welding GMAWGas Metal Arc Welding (MIG/MAG) FCAWFlux Cored Wire GTAWGas Tungsten Arc Welding (TIG) PAWPlasma Arc Welding Straight polarity = Electrode -ve Reverse polarity = Electrode +ve

2 F NumberGeneral Description 1Heavy rutile coated iron powder electrodes :- A5.1 : E7024 2Most Rutile consumables such as :- A5.1 : E6013 3Cellulosic electrodes such as :- A5.1 : E6011 4Basic coated electrodes such as : A5.1 : E7016 and E7018 5High alloy austenitic stainless steel and duplex :- A5.4 : E316L-16 6Any steel solid or cored wire (with flux or metal) 2XAluminium and its alloys 3XCopper and its alloys 4XNickel alloys 5XTitanium 6XZirconium 7XHard Facing Overlay ASME F Numbers Note:- X represents any number 0 to 9

3 ASME A Numbers These refer to the chemical analysis of the deposited weld and not the parent material. They only apply to welding procedures in steel materials. A1 Plain unalloyed carbon manganese steels. A2 to A4Low alloy steels containing Moly and Chrome Moly A8Austenitic stainless steels such as type 316.

4 ASME Welding Positions Note the welding progression, (vertically upwards or downwards), must always be stated and it is an essential variable for both procedures and performance qualifications. Welding Positions For Groove welds:- Welding Position Test PositionISO and EN Flat 1G PA Horizontal 2GPC Vertical Upwards Progression 3GPF Vertical Downwards Progression 3GPG Overhead 4GPE Pipe Fixed Horizontal 5GPF Pipe Fixed @ 45 degrees Upwards 6GHL045 Pipe Fixed @ 45 degrees Downwards 6GJL045

5 G for Groove Welds F for Fillet Welds

6 G for Groove Welds F for Fillet Welds

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8 Welding Positions For Fillet welds:- Welding Position Test PositionISO and EN Flat (Weld flat joint at 45 degrees) 1FPA Horizontal 2FPB Horizontal Rotated2FRPB Vertical Upwards Progression 3FPF Vertical Downwards Progression 3FPG Overhead4FPD Pipe Fixed Horizontal5FPF

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12 Multiple-pass layers. Weld layer sequence

13 Welding Positions QW431.1 and QW461.2 Basically there are three inclinations involved. Flat, which includes from 0 to 15 degrees inclination 15 - 80 degrees inclination Vertical, 80 - 90 degrees For each of these inclinations the weld can be rotated from the flat position to Horizontal to overhead.

14 Effects of expansion and contraction

15 CONTROLLING DISTORTION

16 HEAT AFFECTED ZONE

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