Manganese Mill Liners By Hunan JY Casting
When it comes to manganese mill liners, Hunan JY Casting is a professional foundry in crushing this material for AG mills, rod mills, SAG mills, and ball mills.
Manganese steel is used for grid liners and generally smaller mills. Its great advantage is that it works hardens under stress, yet the substrate remains tough and can withstand extreme impact without fracture. Its primary disadvantage is that it spreads with impact, so solid liners begin to squeeze together and become extremely difficult to remove, and can damage a mill shell if the stress is allowed to build up to an extreme level.
Manganese mill liners in general refer to a kind of casting steel with the Mn content at 11%~22%, the carbon content at 0.9%~1.5%, mostly higher than 1.0%. Under low impact load, manganese mill liners can achieve HB300~400, Under high impact load, manganese mill liners can achieve HB500~800. Different impact load, the surface hardening layer depth can be up to 10~20 mm. The high hardness of the hardening layer can resist the wear of the grinding media. Under the condition of strong impact abrasive wear, high manganese steel has excellent anti-wear performance, so it is widely used in mining, aggregates, coal industries as wear-resistant parts.
Hunan JY Casting is your mill liner’s super-foundry! No matter which material you need, which shape you need, please check with our engineers freely!
Austenitic Manganese Liners Chemical Composition
|High Manganese Liner (Mn14)||0.9-1.5||0.3-1.0||11-14||0-2.5||0-0.5||≤0.05||≤0.06||≤0.06|
|Super Manganese Liner (Mn18)||1.0-1.5||0.3-1.0||16-19||0-2.5||0-0.5||≤0.05||≤0.06||≤0.06|
Austenitic Manganese Liners Mechanical Properties & Microstructure
|High Manganese Liner (Mn14)||≤240||≥100||A+C|
|Super Manganese Liner (Mn18)||≤260||≥150||A+C|
|C -Carbide A- Austenite|