锤式破碎机用Mn13和Mn18锰钢锤头，在冲击作用下产生加工硬化，表面硬度可达500+ HB，冲击韧性为100–150 J（夏比V型缺口）。
最适合用于进料尺寸超过150毫米且冲击能量高的工况。其韧性奥氏体芯体可吸收冲击而不破裂，同时表面在每次撞击中发生加工硬化。
Mn13（ZGMn13-1至ZGMn13-5）和Mn18等级可供选择。化学成分如下。
| 材料标准 | C | Mn | Si | Cr | Mo | P | S |
| ZGMn13-1 | 1.0-1.45 | 11.0-14.0 | 0.30-1.0 | - | - | ≤0.09 | ≤0.04 |
| ZGMn13-2 | 0.90-1.35 | 11.0-14.0 | 0.30-1.0 | - | - | ≤0.09 | ≤0.04 |
| ZGMn13-3 | 0.9-1.35 | 11.0-14.0 | 0.30-0.8 | - | - | ≤0.09 | ≤0.04 |
| ZGMn13-4 | 0.9-1.30 | 11.0-14.0 | 0.30-0.8 | 1.50-2.0 | - | ≤0.09 | ≤0.04 |
| ZGMn13-5 | 0.75-1.30 | 11.0-14.0 | 0.30-1.0 | - | 0.90-1.2 | ≤0.09 | ≤0.04 |
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