AWS A5.36/A5.36M:2016 pdf free download

AWS A5.36/A5.36M:2016 pdf free download.Specification for Carbon and Low- Alloy Steel Flux Cored Electrodes for Flux Cored Arc Welding and Metal Cored Electrodes for Gas Metal Arc Welding.
and the contact face of the backing shall be buttered using an electrode of the same composition as the classification being tested except as noted in Table 7, Notes b and f. If a buttering procedure is used, the layer shall be approximately 1/8 in [3 mm] thick (see Figure 2. Note 3). The electrode diameter for one test assembly shall be 3/32 in [2.4 mm] or the largest diameter manufactured. The electrode diameter for the other test assembly shall be 0.045 in [1.2 mm] or the smallest size manufactured. If the maximum diameter manufactured is 1/16 in [1.6 mml or less, only the largest diameter need be tested. The electrode polarity shall be as indicated in Table 3. Testing of the assemblies shall be as required in Table 6 for electrodes classified in either the as-welded or PWI IT condition, as applicable.
9.2.1.1 Welding shall be done in the flat position (except for the EIOXTX-XXX-K9 [Eo9XTX-XXX-K9] classification which shall be welded in the vertical position with upward progression), and the assembly shall be restrained (or preset as shown in Figure 2) during welding to prevent warpage in excess of 5°. An assembly that is warped more than 5° from plane shall be discarded. It shalt not be straightened.
Prior to welding, the test assembly shall be heated to the preheat temperature specified in Table 8 for the electrode being tested. Welding shall continue until the assembly has reached the required interpass temperature specified in Table 8. measured by temperature indicating crayons, surface thermometers or contact pyrometers at the location shown in Figure 2. Measurement of interpass temperature shall occur prior to application of subsequent weld passes and be measured within one inch of the edge of the weld groove. This interpass temperature shalt be maintained for the remainder of the weld. Should itbe necessary to interrupt welding, the assembly shall be allowed to cool in still air. The assembly shall be heated to a temperature within the specified interpass temperature range before welding is resumed.
9.2.1.2 When posiweld heat treatment (PWIIT) is required, it shall be performed prior to removal of the mechanical test specimens. This heat treatment may be applied either before or after the radiographic examination. The temperature of the test assembly shall be raised in a suitable furnace at the rate of 150°F to 500°F [85°C to 280°C] per hour until the postweld heat treatment (PWIIT) temperature specified in Table 8. for the electrode classification, is attained. This temperature shall be maintained for one hour (—0, +15 minutes). unless otherwise noted in Table 8. The test assembly shall then be allowed to cool in the furnace at a rate not greater than 350°F [200°C] per hour. It may be removed from the furnace when the temperature of the furnace has reached 600°F [300°C] and allowed to cool in still air.
9.2.2 TesI Assembly for Single Pass Electrodes. For single pass electrodes a butt joint test assembly using base metal as specified in Table 7 shall be prepared and welded as specified in Figure 3 and 9.2.2.1. After tack welding the plates a each end, the test assembly shall be welded in the flat position with one bead on each side.
9.2.2.1 Welding shall begin with the assembly at 60°F [15°C1 minimum. Vhen the weld bead has been completed on the face side, the assembly shall be turned over and the bead deposited on the root side, as shown in Figure 3. AWS A5.36/A5.36M:2016 pdf free download.