The evaluation of the performance indicators of agricultural machinery forgings needs to consider the following aspects: Strength: Agricultural machinery forgings need to have sufficient strength to withstand the various forces and loads faced in the working environment. The strength of forgings is evaluated by tensile test, hardness test, impact test, etc. Toughness: Agricultural machinery forgings need to have good toughness and can maintain stable performance under the action of external forces such as shock, vibration and deformation. The toughness of forgings is evaluated by impact test and low temperature embrittlement test. Wear resistance: Agricultural machinery forgings in the process of use will inevitably contact with other metal parts or stones and other objects, so it needs to have a certain resistance to wear. The wear resistance of forgings can be evaluated by wear test, friction coefficient test, etc. Corrosion resistance: Agricultural machinery forgings often work in humid, dusty and other harsh environments, and need to have the ability to resist corrosion. Corrosion resistance of forgings can be assessed by conducting corrosion tests, salt spray tests, etc. Dimensional accuracy: Agricultural machinery forgings need to be precisely matched with other parts in the assembly process, so dimensional accuracy is an important indicator to evaluate its performance. Dimensional accuracy of forgings can be evaluated by dimensional measurement, shape inspection, etc. Weldability: Agricultural machinery forgings may need to be welded or assembled, so they need to have good weldability. Weldability of forgings can be evaluated by welding test, metallographic microanalysis, etc. Evaluation of the performance indicators of agricultural machinery forgings needs to consider the above aspects comprehensively, and according to the relevant industry standards and norms for testing and evaluation.