Introduce the results of using different materials of the hammer crusher hammer : Results of different materials hammers Material hardness Broken material Relative wear resistance Crusher model ZGMn13 180-200HB 1.0 Medium manganese steel 220-250HB limestone 2.1 [12] ф 1000 × 800 High carbon manganese alloy cast steel 30-40HRC Iron ore 1.53 [20] ф 800 × 600 Low manganese cast steel 54-60HRC coal 2-3 [21] Low alloy cast steel 45-55HRC Stone 3.0 [14] Low alloy bainitic steel 35-50HRC Carbon stone 1.93 [27] limestone 1.6 Ф 800 × 600 Coal gangue 3.0 High chromium cast iron combined with carbon steel > 58HRC Cement clinker 3.1-3.6 [33] Cement raw meal 6.0 [33] limestone 6.7 [34] Quartzite 11.5 [35] Forged white cast iron 55-60HRC Feldspar 2.0 [36] Casting heat treated white iron 58-61HRC Shale + clay 7.0 [37] natural ferulic acid,ferulic acid for skin,ferulic acid whitening Xi'an Sentian Biotechnology Co., Ltd. , https://www.sentianbio.com