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High-manganese austenitic steels Mn13, X120Mn12, and Mn12 are renowned for their exceptional toughness and work-hardening capabilities. Under high-impact conditions, the steel surface undergoes significant hardening, with hardness increasing from an initial 200 HB to above 750 HB. This makes Mn13, X120Mn12, and Mn12 ideal for applications in heavy-duty environments where continuous abrasion and impact are prevalent, such as mining, construction, and industrial equipment.
| Steel Grade | Yield Strengthย ย ย (MPa) | Tensile Strengthย ย (MPa) | Elongationย (A50%) | Brinell Hardness (HBW) | Available Specification (mm) |
| Mn13 | โฅ300 (471) | โฅ700 (1010) | โฅ24 (45) | โฅ170 (210) | 3.0~25.0ร 1000~2050 |
| X120Mn12 | โฅ300 (465) | โฅ700 (1020) | โฅ20 (41) | โฅ170 (220) | 3.0~25.0ร 1000~2050 |
| Mn12 | โฅ300 (475) | โฅ700 (1020) | โฅ20 (42) | โฅ170 (220) | 3.0~25.0ร 1000~2050 |
1. Mining and Quarrying Equipment: High-manganese steels like Mn13 and X120Mn12 are used in ore crushers, hoppers, and excavator buckets, where they withstand constant abrasion and impact, reducing downtime and maintenance needs.
2. Construction and Heavy Machinery: In construction, these steels are commonly applied to bulldozer blades, loader buckets, and wear plates in grinding and screening equipment, providing prolonged durability in rugged conditions.
3. Cement and Aggregate Industry: Cement mixers, linings, and chutes benefit from Mn13โs work-hardening ability, withstanding harsh environments and abrasive materials.
4. Railroad and Transportation: Used in rail track crossings and switches, high-manganese steel endures high friction and impact, ensuring long service life in rail components subject to high wear.
5. Shredding and Pulverizing Equipment: In the metal recycling and shredding industry, Mn13 and X120Mn12 handle repetitive high-stress impacts, providing durability and stability for shredders and pulverizers.
