Manganese Steel (High-Mn) is a conventional material for wear parts with a long history. Today, this steel is mostly used for crusher jaws, crushing cones and crushing shells, or recommended for blow bars of impact crusher when crushing by less abrasive and large feed materials.

Most of the manganese steel wear parts are made of Mn13Cr2 Mn18Cr2 and Mn21Cr2, Mn24Cr2. They are applicable to the crushers from many local and abroad brands.