What is X120Mn12 Manganese steel plate?

X120Mn12 Manganese steel plate- also known as manganese hard steel or hard manganese steel plate – in its quenched state has the emblematic of significantly increasing its original low hardness and tensile strength in the cold-worked layer by intense cold working without this having an adverse effect on the originally very high persistence. The cold working increases the G-X120MN12 Steel Plates wear-resistance enormously. X120MN12 Grade Manganese Steel Plates can be flanged , bent, and pierced because of its high persistence.

X120Mn12 Steel and 11G12 Plates are high-manganese steel plates with austenitic structure, characterized by high Manganese content – approx. 12% and high carbon content – on average 1.00-1.20% . The ranges of concentration of manganese and carbon depend on the equivalents of the grades of different origin.

Specifications

• X120Mn12
• 1.3401
• ASTM A128 Grade B2
• SIDUR 3401
• HADFIELD120Mn12

Typical use of manganese steel

•  Hangers in blasting machines,
  
•  Crusher jaws
  
•  Crusher jaw inserts
  
•  Power shovel bolts
  
•  Power shovel connectors
  
•  Gripping teeth
  
•  Impact mills
  
•  Centrifugal mills
  
•  Protective grills
  
•  Doors
  
•  Cladding
  
•  Safety plates

It is used generally for intense percussion and impact stresses.

Manganese steel can be welded both electrically and autogenously. Electrical welding is, however, preferred because with autogenously welding procedures, burn-off of manganese and carbon may easily occur. Shielded electrodes at 0.8% – 1.0% C and 15 – 18% Mn must be used for electric welding. The wear resistance is somewhat lower at the weld seam than with the remaining material.