Jinan [Ball] Which is stronger? Zhangqiu Dragon is a good choice for you, welcome to your visit is a new hot-rolled steel ball rolling technology, is a breakthrough technology in manufacturing ball milling, the ball is being gradually replaced casting, hot rolling steel balls with the following characteristics : First, all the advantages of hot-rolled steel ball by ball milling quality after heat treatment become ball two, high production efficiency, yield, high mechanization and automation of production rolling ball, no manual operation of the production chain, employing less , a small man-made interference. Third, stable quality, high hardness, good hardenability, microstructure dense, fine grain size, no distortion, no deformation ball from beginning to end, without losing a round, good wear resistance, toughness up 12-35J / cm2, crushing rate of less than 1%; four, low energy consumption, pollution, low labor intensity, low production cost five good shape, geometric tolerances, stable quality. Sixth, low wear rate, long life, is the existing cast iron ball, forged steel ball 2 to 5 times, and the prices are pretty. Seven, ball hardness up to 60 ~ 67HRC, internal and external balance of hardness, hardness difference