CSA W47.1:19 Fusion Welding of Steel PDF

Certification of companies for fusion welding of steel CSA W47.1:19 i) iii) iv) fusion between adjacent layers of weld metal and between weld metal and base metal; weld profiles conforming to Figure 14; and no undercut exceeding 1 mm (1/32 in). 9.11 Test results required 9.11.1 Bend tests For al...

Certification of companies for fusion welding of steel CSA W47.1:19 i) iii) iv) fusion between adjacent layers of weld metal and between weld metal and base metal; weld profiles conforming to Figure 14; and no undercut exceeding 1 mm (1/32 in). 9.11 Test results required 9.11.1 Bend tests For all specimens subjected to bend testing, the convex surface of the bent specimens shall be examined for the appearance of cracks or other open defects. For acceptance, surface discontinuities shall not exceed the following: a) 3 mm (1/8 in) measured in any direction; and b) 6 mm (1/4in) on the corners, unless the corner crack resulted from visible slag inclusions or other fusion type discontinuities, in which case Item a) shall apply. The sum of the greatest dimensions of all discontinuities exceeding 1 mm (1/32 in) but less than or equal to 3 mm (1/8 in) shall not exceed 10 mm (3/8 in). 9.11.2 S classification Where Option 1 of Figures 8 and 9 is used, the profile of the initial fillet and the final groove shall be visually examined and shall conform to the acceptable profiles shown in Figure 14. The maximum permissible undercut shall be 1 mm (1/32 in). The sizes of legs for the fillet weld [maximum 8 mm (5/16 in)] shall not vary by more than 2 mm (1/16 in). Test assemblies subjected to radiographic examination shall meet the standards of acceptance defined in Clause 9.10.1. 9.11.3 T classification Before bend tests are performed, the weld shall be visually examined for compliance with Figure 14 and shall show a) not more than 5 mm (3/16 in) of a single length of lack of root penetration; b) not more than 6 mm (1/4 in) of cumulative length of lack of root penetration in any 38 mm (1-1/2 in) of the joint; . c) aface and root reinforcement that is substantially smooth and uniform and not exceeding 3 mm (1/8 in) at the centre of the weld; and d) all craters filled to the full cross-section of the weld. The maximum permissible undercut in the specimen shall be 1 mm (1/32 in). 9.12 Retest due to failure in initial qualification 9.12.1 In the case procedure welder, or should be of a failure, a thorough check used should be made. If these welding operator shall weld a performed as soon as possible of the equipment and a review of the welding parameters or are at fault they shall be corrected, and the tack welder, new test assembly identical to the type that failed. The retest after the previous test. 9.12.2 In the case of failure of the retest, the tack welder, welder, or welding operator shall be a) provided with further training before attempting another test; and b) given a qualification for the lowest class covered by the tests that passed. October 2019 38 Tax code: 3500785873 Licensed to/autorisé A CSWind Vietaam, nnhaigmécswind.com, CSWind Vietnam Co., L 501 by/vendu par CSA Group/Groupe CSA on/le 2023-09-21. -Single user license only. torage, copying, discribucion or use on Sur Le réseau est incerdic network pronibized. Le stockage, reproduction, la distribution, ou 1'ucills: CSA W47.1:19 Certification of companies for fusion welding of steel 9.12.3 In the event of further failure, retraining shall be required before further attempted. tests to upgrade are 9.12.4 Test assemblies that passed but were not recognized because of failure of lower class assemblies shall remain valid for a period of 3 months following the test for the purpose of further upgrading. 9.12.5 The provisions of Tables3, 4, and 5 shall apply to initial qualification tests. 9.13 Upgrading The provisions of Tables 6, 7, and 8 shall apply for upgrading. 9.14 Requirements for welder and welding operator qualification 9.14.1 T classification 9.14.1.1 General 9.14.1.1.1 Welders and welding operators shall be qualified by welding-a groove weld test assembly and a fillet weld test assembly. 9.14.1.1.2 Welders and welding operators shall be qualified by welding either the plate or pipe test assemblies specified in Table 2 and illustrated in Figures 6, 11, and 12. 9.14.1.1.3 Welders and welding operators seeking a qualification in T classification for a given class, irrespective of whether they are in possession of a valid S classification, shall weld test assemblies with joint configurations as shown in Figures 11 and 12 in the positions designated in Figures 1, 2, and 3. 9.14.1.2 Test specimens 9.14.1.2.1 Pipe test assembly 9.14.1.2.1.1 For welders or welding operators qualifying for T classification on a pipe test assembly, guided bend test specimens shall be prepared for each of the following positions of welding: a) for test assemblies in positions 1G and 2G, two specimens shall be prepared for each position of welding, one (#1 for 1G and #3 for 2G) at a point of stop and start and one (#2 for 1G and #4 for 2G) at a location approximately 90° from the other specimen [see Figure 13 a)]; b) for test assemblies in positions 2G and 5G, combining all welding positions to qualify an overhead welder, two specimens shall be prepared for each of the positions of welding as follows: i) No.1and No. 2 for flat; i) No. 3 and No. 4 for horizontal; October 2019 Licensed to/aut: Sold by, vendu pa CS5 Group/Grouse Coh o network prohibited. Lo stockage, © 39 y oduction, la distribucion, ou 1'ucilisacion sur 1 : 3500783873 bucion of use o ntezdic CSA W47.1:19 iii) No. 5 and No. 6 for vertical; and iv) c) Certification of companies for fusion welding ofsteel No. 7 and No. 8 for overhead. See Figure 13 b) and Note 1) A stop and start shall be located within the odd-numbered for test assembly position 6G, four specimens shall be prepared Figure 13. A stop and start shall be located within the root-bend designating root- and face-bends. specimens; and from the locations shown in specimens. 9.14.1.2.1.2 The size of the specimens cut from the pipe assemblies shall be as shown in Figure 17. 9.14.1.2.1.3 The weld shall be ground flush on both sides and the corners of the specimen rounded to a 3 mm (1/8 in) radius. 9.14.1.2.2 Plate test assembly For welders or welding operators qualifying for T classification on plate test assemblies, three guided bend test specimens (two root- and one face-bend) shall be prepared from each test assembly at locations shown in Figure 12 for each position of welding. 9.14.2 S classification 9.14.2.1 General 9.14.2.1.1 Welders and welding operators in this classification shall be qualified by welding a groove weld test assembly and a fillet weld test assembly or a combined fillet groove test assembly as specified in Table 2 and shown in Figures 6, 8, and 9. 9.14.2.1.2 The extent of the validity of a qualification with a given F group of electrodes for the SMAW process shall be in accordance with Table 1. 9.14.2.2 Welder and welding operator qualification plate test assembly 9.14.2.2.1 The assembly for SMAW, GMAW, and GTAW shall be as shown in Figure 8 and for SAW, FCAW, and MCAW as shown in Figure 9. For qualification tests using the FCAW or MCAW process with an electrode diameter of 1.6 mm (1/16 in) or less, the test assembly shown in Figure 8 may be used. 9.14.2.2.2 For Option 1 of Figures 8 and 9, the fillet shall be a single-pass fillet [maximum 8 mm (5/16 in)] and shall be deposited on all assemblies with both plates tack welded to the backing bar. 9.14.2.2.3 Both the fillet and the subsequent groove weld shall be fully welded and cleaned in the required position of welding. There shall be one stop and restart in the root pass of each weld in locations indicated in Figures 8 and 9, and in the root pass of the fillet weld in the location indicated for Option 1. October 2019 Licensed to/autorisé 2 C: Vietaam, ashaigmacswind.com, CSWind Vietnam Co Lo, Tax code: 3500785873 Sold by/vendu par CSA Group/Grou: Yo s user license Storage, copying, distribution of use o fetuork ronibited. Le Steckage, reproduction, ia Giscrinucion, ou 1w isation sur le réseau est interdit 40 CSA W47.1:19 Certification of companies for fusion welding of steel After the stop and before the restart, the plate may be moved or rotated parallel to the plane of welding provided the orientation from the plane of welding is not altered. 9.14.2.3 Test specimens 9.14.2.3.1 For mechanical testing in the case of SMAW, SAW, FCAW, MCAW, GTAW, and GMAW processes, three guided bend test specimens (two root- and one face-bend) shall be prepared from each test assembly at the locations shown in Figures 8 and 9. 9.14.2.3.2 For mechanical testing, the test specimen shall have the weld ground smooth, and the backing removed by mechanical means or by flame-cutting to within 3 mm (1/8 in) of its thickness, followed by grinding or machining. 9.14.2.3.3 The size and the finished profile of the applicable test specimens shall be as shown in Figures 15 and 16. 9.14.3 FW classification 9.14.3.1 General Welders and welding operators in this classification shall be qualified by welding fillet weld test assemblies specified in Table 2 and illustrated in Figure 6. 9.14.3.2 Qualification assembly A welder or welding operator shall be qualified on one test assembly, as shown in Figure 6, in each position of welding in which he/she is to weld. 9.14.3.3 Test specimen The entire qualification assembly shall serve as the test specimen. 9.14.3.4 Method of testing 9.14.34.1 Before test specimens are cut from each test assembly, the weld shall be visually examined for compliance with Figure 14 and Clause 9.14.3.5.1. Only the centre 100 mm (4 in) of the test assembly shall be subject to visual examination. 9.14.3.4.2 The test assembly shall be cut into test specimens as shown in Figure 6. 9.14.3.4.3 The centre 100 mm (4 in) shall be subjected to a force (as shown in Figure 19) until rupture occurs. The force may be applied by any convenient means. The two 25 mm (1 in) end specimens of the test assembly shall be macro-etch tested (see Clause 9.10.3). October 2019 Licensed to/autorisé a CSWind Vietnam, sohaiqmocswind.c , Cswind Vi . i Tax code: 3500785873 Sold by/vendu par CSA Group/Groupe CSA on/le 2 s only. Storage, copying, dlscribucion or use on necwork prohibited. Le stockage, reprodu on, la distribution, ou l'ucilisation sur le réseau esc incerdic 41 CSA W47.1:19 Certification of companies for fusion welding of steel 9.14.3.5 Test results required 9.14.3.5.1 The fillet weld shall present a reasonably uniform appearance and shall be free of overlap and cracks. The maximum permissible undercut shall be 1 mm (1/32 in). 9.14.3.5.2 The fractured surfaces shall exhibit complete penetration to the root of the joint and shall not contain inclusions or porosity greater than 2.5 mm (3/32 in) in the greatest dimension. 9.14.3.6 Initial qualification tests For sequence of testing and procedures to be followed in case of failure, and qualification achieved, see Table 3. For upgrading, see Table 6. In the case of failure to pass the test, the welder or welding operator may make one retest without additional training. 9.14.4 WT classification 9.14.4.1 General Tack welders shall be qualified for each welding process used for tacking. 9.14.4.2 Qualification assembly A tack welder shall be qualified on one test assembly, as shown in Figure 7, in each position of welding in which he/she is to tack weld (see Table 2). 9.14.4.3 Test specimen The entire qualification assembly shall serve as the test specimen. 9.14.4.4 Method of testing 9.14.44.1 A force shall be applied as shown in Figure 19 until rupture occurs. The force may be applied by any convenient means. 9.14.4.4.2 The surface of the weld and of the fracture shall be examined visually for defects. 9.14.4.5 Test results required 9.14.4.5.1 The tack weld shall present a reasonably uniform appearance and shall be free of overlap and cracks. The maximum permissible undercut shall be 1 mm (1/32 in). 9.14.4.5.2 The fractured surface shall exhibit complete penetration to the root of the joint and shall not contain inclusions or porosity greater than 2.5 mm (3/32 in) in the greatest dimension. October 2019 Licensed to/autorisé A CWind Vietnam, nnhaigmécswind.com, CSWind Vietnam Co., LTD Tax code: 3500785873, So1d by/vendu par CsA /Groupe CSA on/le 2023-09-21. -Single user License only. Storage, copying, distribution of use on necwork prohibited. Le stockage, reproduction, la distribution, ou l'ucilisation sur le réseau est interdit 42 CSA W47.1:19 Certification of companies for fusion welding of steel 9.14.4.5.3 A tack welder who passes the fillet weld break test shall be eligible to tack weld all types of joints for the process and in the positions in which he/she has qualified. 9.14.4.6 Initial qualification tests For sequence of testing and procedures to be followed in case of failure, and qualification achieved, see Table 3. For upgrading, see Table 6. In the case of failure to pass the test, the tack welder may make one retest without additional training. 9.14.4.7 Period of effectiveness A tack welder who passes the test described in Clause 9.14.4.2 shall be considered eligible to perform tack welding indefinitely in the positions and with the processes for which he/she is qualified, unless there is some reason to question his/her ability. In such a case, the tack welder shall be required to demonstrate his/her ability to make sound tack welds by again passing the prescribed tack welding test. 9.15 Requirements for robotic welding personnel 9.15.1 Robotic welding programmer 9.15.1.1 If the programming function for robots is performed by the company’s personnel, the have at least one personnel qualified as a robotic welding programmer. The evaluation ability to program the robot will be a process that shall take place during testing using programmer will need to prove that he/she is able to program and adjust the program during production. company shall of personnel’s Figure 35. The at any time 9.15.1.2 If the program is supplied by a third party company, the programmer does not require any testing. 9.15.2 Robotic welding operator Robotic welding operators shall be qualified by welding a test assembly as shown in Figure 35. Alternatively, the robotic welding operator may be qualified by welding a production test assembly (alternate) in the positions required by the program. 9.15.3 Method of testing 9.15.3.1 Before the test specimens are cut from each test assembly, the finished profile of the completed welds shall be confirmed by the CWB’s representative as meeting those profiles shown in Figure 14. 9.15.3.2 The production test assembly shall be cut to extract sufficient macro-etch specimens that will represent each type of joint, each welding position, each size of the weld required, and each change in the side of the joint. However, no less than two macro-etch specimens shall be extracted as a representation. 9.15.3.3 The standard test assembly shall be cut as shown in Figure 35. October 2019 Licensed to/autorisé A CSWind Vietnam, nnhaigmacswind.com, CSWind Vietnam Co., LTD Tax code: Sold by/vendu par CSA Group/Groupe CSA on/ -0 ~Single user lic Storage, wokyiag, necuork pronibited. Le stockage, reproduction, la distribucion, o ation sur le réseau es 43 3500785873 CSA W47.1:19 Certification of companies for fusion welding of steel 9.15.4 Test results All macro-etched test specimens, when inspected visually with a maximum magnification up to 5 power, shall conform to the following requirements: a) fillet welds shall have fusion to the root of the joint, but not necessarily beyond unless required; b) minimum leg size shall meet the specified fillet weld size. No leg size more than 3 mm (1/8 in) larger than the minimum specified shall be allowed; c) complete joint penetration, partial joint penetration, and fillet welds shall have the following: i) no cracks; i) fusion between adjacent layers of weld metal and between weld metal and base metal; iii) weld profiles conforming to Figure 14; and iv) no undercut exceeding 1 mm (1/32 in); d) partial joint penetration groove welds shall have the actual effective throat thickness, E, equal to or greater than the specified effective throat thickness; and e) complete joint penetration groove welds shall have the actual effective throat thickness, E. 9.15.5 Initial, upgrade, and retest 9.15.5.1 The robotic welding programmer and robotic welding operator is not required to follow initial, upgrade, or check testing requirements of this Standard. 9.15.5.2 In the case of failure to paés the test, the robotic weldiné programmer and the robotic welding operator may make one retest without additional training. 9.15.5.3 In the case of failure of the retest, the robotic welding programmer and the robotic welding operator shall be provided with further training before attempting another test. 9.15.5.4 In the event of further failure, retraining shall be required before further tests are attempted. 10 Welding procedure specifications (WPS) The company shall have welding procedure specifications for each welding process in use. These specifications shall outline the general welding procedure to be followed in the construction of weldments built in accordance with the governing design, the manufacturing Standard, or both. Each welding procedure specification shall include applicable essential variables. All welding procedure specifications shall be submitted to the CWB for acceptance and when stamped as accepted shall be considered as registered with the CWB. Note: Suggested welding procedure specification formats for the SMAW, FCAW, GMAW, GTAW, and SAW processes are provided in Annex D. October 2019 44 Licensed to/autorisé A CSWind Vietnam, nmhaiqmcswind.com, CSWind Vietnam Co., LTD. Tax code: 3500785873, S0l by/vendu par CSA Group/Groupe CSA on/le 2023-09-21. -Single user license only. Storage, copying, discribucion or use on network prohibited. Le stockage, reproduction, ia distribucion, ou 1'ucilisacion sur le réseau est incerdit CSA W47.1:19 Certification of companies for fusion welding ofsteel 11 Welding procedure data sheets (WPDSs) 11.1 General 11.1.1 The company shall prepare welding procedure data sheets for welded joints used by the company in accordance with the requirements of this Standard. WPDSs shall be prepared by the company’s personnel for prequalified joints and submitted to the CWB for review and acceptance. Alternatively, in lieu of preparing individual WPDSs for each prequalified joint, the company may submit a welding procedure specification including prequalified joints based on the code supporting such prequalified joints. There shall be a separate WPS for each process, which shall include all geometric details and parameters specified in such a code. Acceptance of such WPSs by the CWB shall preclude the need for individual prequalified joint WPDSs. WPDSs shall be prepared by the company’s personnel for non-prequalified joints and submitted to the CWB for review and acceptance (see Clause 11.2.2). Information included in the WPSs and WPDSs shall be made available, in any convenient form, for use by shop and field welding supervisors and other authorized personnel responsible for the execution of welding. 11.1.2 Companies welding deformed reinforcing bars to steel elements may apply the testing requirements of this Standard and have their WPDS accepted in accordance with this Standard. . Note: Deformed bar is a hot-rolled weldable product that conforms to CSA G30.18 and is primarily intended as concrete reinforcement. It is, however, frequently used as anchor material for structural steel plate and shapes embedded in concrete. 11.2 Qualification of welding procedure data sheets (WPDSs) 1121 The information contained in a WPDS shall include the joint geometry and the parameters that are to be used in making a weldment. The company submitting a WPDS for acceptance may place additional limits on parameters and geometry or may include additional information that could be helpful in making a weldment. An overview of the information typically included on a WPDS is given in Annex C. 11.2.2 A WPDS shall be accepted based on the following: a) the prequalified joint geometry and procedure limitations are within those required by the governing applicable standard (e.g., CSA W59, Annexes J and K of this Standard, and AWS D1.1); or b) the joint geometry and parameters are qualified by successful procedure qualification tests recorded on a PQR. One or more of the following methods may be used: i) acompany’s previous procedure qualification test data recorded on PQR; i) successful procedure qualification test data recorded on PQRs accumulated by the CWB. If, in the opinion of the CWB, there is an insufficient number of prior PQRs to validate the WPDS for approval, a procedure qualification test shall be required; Note: It is recagnized that there could be a limited number or small sampling of prior PQRs available for comparison purposes. In such cases, consideration should be given to the use of statistical techniques to validate the number of available prior PQRs used for comparison purposes. It is also recognized that the October 2019 Licensed to/autorisé A CSWind Vietaam, nshaigmacswind,com, CSt Sold by/vendu par CSA Group/Groupe CSA on/le 2023-09-21, -Single us: network prohibited. Le stockage, reproduction, la distribuc. CSA W47.1:19 c) d) e) Certification of companies for fusion welding of steel parameters of certain procedure qualification tests conducted by one or more companies are not necessarily achievable for other companies. successful procedure qualification tests conducted in accordance with this Standard; successful procedure qualification tests conducted in accordance with other recognized specifications or standards; and special successful procedure qualification tests recorded on PQRs.* In certain circumstances, acceptance of the WPDS can require a combination of the above methods. * These tests are only valid for the specific conditions and ranges tested. 11.2.3 Provided that all requirements outlined in this Standard for the applicable welding process have been met, a WPDS that has been qualified by an authority acceptable to the CWB to another recognized code or standard shall be acceptable. 11.24 WPDSs using joints designated as prequalified in any applicable governing standard, and which satisfy the procedural stipulations as they apply to the welding process designated by the same standard, shall be accepted as prequalified by the CWB. 11.2.5 For the qualification of WPDSs that use welding processes or base metals, or other parameters beyond the range specifically covered by this Standard, the CWB shall a) follow testing procedures established for the welding process by other authorities acceptable to the CWB, suitably modified where necessary to achieve greater compatibility with the general test objectives of this Standard; or b) in the absence of such procedures, adapt the general provisions of this Standard to make such provisions compatible with the inherent characteristics of the welding process and/or base material/weld material combination being used, and ensure that the requirements as specified by the contract, or the applicable governing application standard for the service condition requirements and base metal used, are satisfied. 11.2.6 The minimum thickness considered qualified, except for sheet steel as specified in Clause 11.2.7, shall be that thickness for which the pertinent essential variables can be practically applied, but it shall be not less than 3 mm (1/8 in). 11.2.7 The qualification of welding procedures for steel less than 3 mm (1/8 in) thick shall be governed by the requirements of Annex J. 11.2.8 The qualification of welding procedures for stainless steel shall be governed by the requirements of Annex K. October 2019 Licensed to/autorisé A Cswind Vietnam, nnhaigmécswind.com, CSWind Vietnam Co., LTD. Tax code: 3500785873 Sold by/vendu par CSA Group/Groupe CSA on/le 2023-09-21. -Single user license only. Storage, copying, distribution or use on necuork pronibited. Le stockage, reproduction, la distribution, ou l'usilisacion sur le réseau est interdit. 46