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AWS A5.11/A5.11M:2018 pdf free download
AWS A5.11/A5.11M:2018 pdf free download.Specification for Nickel and Nickel- Alloy Welding Electrodes for Shielded Metal Arc Welding.
9.3 eld Pad. A weld pad shall be prepared as specified in Table 2 and shown in Figure I. ccep when one oldie alter. natives in 9.1 flaking the sample Imni the weld metal in the groove or front the tension tCsI specimen) is selected. Base metal of any convenient site. of the tpe specified in Table 3. shall be used as the base lot’ the weld pad. The wrfaix of the base metal on which the filler metal is deposited shall be clean. The pad shall be welded in the flat position with multiple beads and layers to obtain undiluted weld metal. The type of current and range of aniperuge used lot’ welding shall be as rcctmimcnded by the manufacturer, The preheat temperature shall he not less than 60’F I l6TI and the interpass temperature shall not exceed 3($)F (I30CJ. The slag shall be removed after each pass. The pad may he quenched in water temperature above (,OF 11W Cj) between passes. The dimensions o(the completed pad shall be as shown in Figure I for each site of ekctrusk. Testing of this assembly shall he as specified in Clause ID. Chemical Analysis.
9.4 (i Weld
9.4.1 %kdiankal Propertles and Soundness. A test assembly shall be prei*rcd and welded as specified in Table 2 and shown in Figure 2. using base metal of an appropnatc type specified in Table 3. Testing of this assembly shall be as specified in Clause 12. Tension Test, and Clause 13. Bend Test. Additionally, this assembly may he used to satisfy the requirements of die flat position radiographic lest (Note c to Table 2). In that case, the assembly shall be radiographcd as required in Clause II. Radiographic Test. The assembly shall be tested in the is-wldcd condition
9.4.2 Radiugraphk Soundness, A test assembly shall be prepared for electrodes of all classifications and welded as shown in FIgure 3. using base metal at thc appropriate type specified in Table 3. The welding position shall be as specified in Table 2 for the different electrode siics and classifications. Testing of the assembly shall be as specified in Clause II. Radiographic Test. The gnxwc weld in Figure 2 may be radiographcd tfur those classifications for which the radiographic test is welded in the flat position), thus eliminating the need to make the groove weld in Figure 3. in those case’s.
10. Chemical Anah’sis
lot The sample for analysis shall he taken from weld metal obtained from the weld pad. the reduced section of the fractured tension test specimen. or a low -dilution area of the groove weld in Figure 2. The top surface of the pad described in 9.3 and shown in Figure I (when the pad is used), shall be removed and discarded. A sample for analysis shall be obtahied from the underlying metal by an appropriate niechanical means. The ..ample shall be free of slag.
Foi electrodes smaller than 5132 in 14.() mm). the sample shall be taken at least 3/H in III) mm) from the nearest surface of the base metal. For clccinidcs 5/32 in 130 mml and larger, the sample shall he taken at least 314 in 19 mm) from that surface. If carbon-steel base metal is used in the chemical analysis test pal. see Note a in Table 3. The sample from the reduced section of the fractured tension test specimen and the sample from a low-dilution area of the groove weld shall be prepared for analysis by any suitable mechanical means.
10.2 The sample shall he analyzed by accepted analytical mcthtsK The referee method shall be ASTM £1473. supplemented by ASTM E 1019 and ASTM E354 for nickel base allays, and ASTM £76 for nickel copper alloys, as appropñate.AWS A5.11/A5.11M:2018 pdf free download.
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