Re: [MW:7865] Welder Performance Qualification ASME IX

Mr Larry,  As per to the ASME IX QW-423   Alternate Base Materials for Welder               Qualification QW-423.1 Base metal used for welder qualification May be substituted for the metal specified in the WPS in Accordance with the following table. When a base metal Shown in the left column is used for welder qualification, The welder is qualified to weld all combinations of base Metals shown in the right column, including unassigned Metals of similar chemical composition to these metals. Base Metals for Welder                                  Qualified Production Qualification                                                   Base Metals P-No. 1 through P-No. 15F,                             P-No. 1 through P-No. 15F, P-No. 34, and P-No. 41                                   P-No. 34, and P-No. 41 Through P-No. 49                                            through P-No. 49 P-No. 21 through P-No. 26                              P-No. 21 through P-No. 26 P-No. 51 through P-No. 53 or                          P-No. 51 through P-No. 53 and P-No. 61 and P-No. 62                                   P-No. 61 and P-No. 62 QW-452.3 GROOVE-WELD DIAMETER LIMITS Outside Diameter                             Outside Diameter Qualified, in. (mm) Of Test Coupon, in. (mm)                              Min.                 Max. Less than 1 (25)                                  Size welded             Unlimited 1 (25) to 27⁄8 (73)                                 1 (25)                     Unlimited Over 27⁄8 (73)                                      27⁄8 (73)                 Unlimited GENERAL NOTES: (a) Type and number of tests required shall be in accordance with QW-452.1. (b) 27⁄8 in. (73 mm) O.D. Is the equivalent of NPS 21⁄2 (DN 65). Here By,   P.BalajiRajan, Inspection Engineer, Velosi Certification LLC, P.O 3408 Doha-Qatar. Mobile- Qatar +97433120091,              India  +919842659329.           -------Original Message-------   From: Larry Date: 10/27/2010 11:22:50 AM To: materials-welding@googlegroups.com Subject: [MW:7839] Welder Performance Qualification ASME IX   Hi There,   We have qualified a welder on an ASME IX WPS with the following:   Position: 6G Size: 100NB Specs: A333- WPL6 (P1, G1) Process: GMAW/FCAW (F-No.: 6 electrode)   As per QW-423.1 and QW-433, will the welder be qualified to weld the following for production?   Position: as required Size: All practical diameter and plate Specs: A106B (P1, G1), SA 312-316L (P8, G1) Process: GTAW (F-No.: 6 electrode)     Thank you in advance.     Cheers,   Larry