@thesis{thesis, author={Erfa Faturrahman and Widya Pramono Andika}, title ={Analisa Kerusakan Ring Hammer Crusher B Di PLTU Banten 1 X 660 MW, PT Lastari Banten Energi}, year={2020}, url={http://156.67.221.169/3229/}, abstract={There is an important component in the PLTU process, namely the Crusher which is an important component located in the coal handling which is used to crush coal, this equipment is equipped with the name Ring Hammer so that this researcher aims to determine the cause of damage to the Ring Hammer material at PLTU Lestari Banten Energi. ASTM A668 standard hardness ranges with a value of 174-217 while after the hardness test was carried out on the Ring Hammer Crusher B, the hardness continued to occur with an average value per area of 95 HRB. the occurrence of pitting corrosion in the crack area, the pitting area causes the beginning or initiation of craking, this craking initiation causes bigger cracks and the occurrence of fracture concentrations at points 1 and 2 of the Ring Hammer Crusher. Whereas in the composition of the Ring Hammer material, there are elements of high Carbon, Manganese and Phosphorus, namely carbon 1.21%, manganese 14.4 and phosphorus 0.059.} }