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ASME P Material Numbers Explained

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. Straight polarity = Electrode -ve Reverse polarity = Electrode +ve. ASME F Numbers. Note:- X represents any number 0 to 9 .

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ASME P Material Numbers Explained

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  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. Straight polarity = Electrode -ve Reverse polarity = Electrode +ve

  2. 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.

  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:-

  5. G for Groove Welds F for Fillet Welds

  6. G for Groove Welds F for Fillet Welds

  7. Welding Positions For Fillet welds:-

  8. Multiple-pass layers.Weld layer sequence

  9. 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. 

  10. Effects of expansion and contraction

  11. CONTROLLING DISTORTION

  12. HEAT AFFECTED ZONE

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