AWS A5.35:2016 pdf download.Specification for CoveredI Electrodes for Underwater Wet Shielded Metal Arc Welding
1. Scope
1.1 This specification prescribes requirements for the classification, based on underwater wet welding test and associated evaluation, of covered electrodes for underwater wet shielded metal arc welding. Requirements for certification of test results are also shown herein. The specification covers ferritic steel, austenitic stainless steel, and nickel fller metals plus any auxiliary coatings applied over the electrode covering. Unless otherwise specified herein, the term“manufacturer" refers to the provider of the finished product (the electrode ready for underwater use). The requirements herein are intended to classify electrodes without consideration for potential base metals to be welded; suitability for specific base metals should be established by the customer during welding procedure qualification testing (see Annex A for further considerations).
This specification does not govern depth of water capability or maximum exposure time for wet welding electrodes classified to this document. However, such information shall be clearly shown as required by the marking requirements of Clause 14.
Safety and health issues and concerns are beyond the scope of this standard and, therefore, are not fully addressed herein.Some safety and health information can be found in informative Annex A. Safety and health information is available from other sources, including, but not limited to, ANSI Z49. I, Safety in Welding, Cutting, and Allied Processes, and applicable federal and state regulations.
values are obtained by equipment calibrated in units other than those of the specified limit, the measured values shall be converted to the units of the specified limit before rounding. If an average value is to be compared to the specified limit,rounding shalll be done only after calculating the average. An observed or calculated value shall be rounded to the nearest 1000 psi for tensile and yield strength for AWS A5.35 (U.S. Customary Unit standard) and to the nearest 10 MPa for tensile and yield strength for AWS A5.35M (SI unit standard); and to the nearest unit in the last right-hand place of figures used in expressing the limiting values for other quantities. The rounded results shall fulfll the requirements for the classification under test.
7. Auxiliary Coating Integrity
Auxiliary coatings shall be uniform with no breaks or flaking which would degrade electrode performance. The auxiliary coatings shall be applied so as to provide complete coverage of the electrode. They shall extend from at least 1/16 in [1.5 mm] beyond the covering on the grip end and shall completely seal the arc end. The auxiliary coatings shall not interfere with electrical continuity between the electrode and the electrode holder.AWS A5.35 pdf download.