The cooling time between 800°C and 500°C, is a crucial factor which determines the properties of welding joints of high strength steels significantly. For field welding, the cooling time t8/5 can be steered by the heat input even if a different wall thickness for the base materials is used. Modern arc processes with reduced heat input allow comparable deposition rates and increases the stability of the strength level due to optimized equipment settings. This paper compares the influence of conventional GMAW processes like short arc, spray arc, GMAW pulse with the new launched processes like PMC (Pulse Multi Control) and others regarding the properties of the weld. Special emphasis is laid on all weld metal and joint welds. From this research, conclusions and recommendations can be derived to optimize welding properties.