High manganese steel hammer
High Manganese Alloy Hammer
Mn13 and Mn18 manganese steel hammers for hammer crushers. Work-hardens under impact — surface reaches 500+ HB. Impact toughness: 100–150 J (Charpy V-notch).
Best suited for feed sizes above 150 mm where impact energy is high. The ductile austenitic core absorbs shock without fracturing, while the surface work-hardens with every strike.
Available in Mn13 (ZGMn13-1 through ZGMn13-5) and Mn18 grades. Chemical compositions below.
| Material standard | 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 |