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| Welding Electrode |
Electrode welding
Most of the SMAW welding electrode coated by a layer of flux, which serves as a gas-forming fluid that protects the metal from the surrounding air contamination. In addition fluk also useful for forming weld slag that also serve to protect the weld from the air surrounding fluid. Electrode layer is a mixture of chemicals that komposisisnya accordance with the requirements of welding. According to the AWS (American Welding Society) electrodes are classified with the letter E and followed by four or five digits as follows E xxxx (x). The first two digits or three digits indicate tensile strength welds three digits indicate
tensile strength of more than 100,000 psi, while two digits indicate the weld tensile strength of less than 100,000 psi. As an example electrode E 6013 has a tensile strength of 60,000 psi (42 Kg/mm2). While the third or fourth digit figure for a greater tensile strength 100,000 psi (70 Kg/mm2) next digit position of the welding point, if the score 1 means for every posisi.pengelasan, number 2 means the weld flat or horizonta l and figure 3 shows for welding flat course. The last digit indicates the type of chemical mixture of the electrode layer.
