AWS A5.9-A5.9M:2012 pdf download.Specification for Bare Stainless Steel Welding Electrodes and Rods
1. Scope
1.1 This specification prescribes requirements for the classification of bare stainless steel wire, strip, composite metal cored, and stranded welding electrodes and rods for gas metal arc, gas tungsten arc, submerged arc, and other fusion welding processes. The chromium content of these filler metals is not less than 10.5 percent and the iron content exceeds that of any other element. For purposes of classification, the iron content shall be derived as the balance element when all other elements are considered to be at their minimum specified values.
1.2 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 Clauses A6 and All. Safety and health information is available from other sources, including, but not limited to, ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes, and applicable federal and state regulations.
1.3 This specification makes use of both U.S. Customary Units and the International System of Units (SD. The measurements are not exact equivalents; therefore, each system must be used independently of the other without combining in any way. The specification designated A5.9 uses U.S. Customary Units and the specification designated A5.9M uses SI Units. The latter units are shown within brackets[] or in appropriate columns in tables and figures.Standard dimensions based on either system may be used for sizing of filler metal or packaging or both under A5.9 or A5.9M specification.
6. Rounding-Off Procedure
For the purpose of determining compliance with the requirements of this standard, the actual test values obtained shall be subjected to the rounding-off rules ofASTM E 29 or Rule A in Clause B.3 of ISO 80000-1 (the results are the same).If the measured 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 off. If an average value is to be compared to the specified limit, rounding off shall be done only after calculating the average. An observed or calculated value shall be rounded to the nearest unit in the last right-hand place offigures used in expressing the limiting values for other quantities. The rounded-off results shall fulfill the requirements for the classification under test.AWS A5.9-A5.9M pdf download.