kawat las kobe cma-96 dia 2,6mm (2kg/box) dia 3.2mm (5kg/box) CMA-96 (AWS A5.5 E8016-B2) has persistently earned a good reputation in the hightemperature high-pressure fields such as boilers and refineries in which 1.25Cr-0.5Mo steel is used at a large consumption ratio for steam power generating equipment and reactor vessels. In welding Cr-Mo steel, the weld metal should have the following essential qualities. (1) Low susceptibility to cold cracking (2) Low susceptibility to hot cracking (3) Resistibility to extended postweld heat treatment for better mechanical properties (4) Stable microscopic structure for better creep resistance at elevated temperatures In order to fulfill these essential requirements, CMA- 96 is ingeniously designed. First, it is of the extra-low hydrogen type; consequently, the amount of diffusible hydrogen in the weld metal can be kept lower than with conventional low hydrogen type electrodes, thereby reducing the susceptibility to cold cracking. Second, the phosphorous and sulfur content of the weld metal is kept low to decrease the susceptibility to hot cracking. Thirdly, CMA-96s elaborate chemical composition provides a stable weld metal microstructure, which allows the weld metal to maintain adequate mechanical properties over extended postweld heat treatment (PWHT) of high temper par