Nihard Iron Mill Liners

When it comes to Ni-hard iron mill liners, Qiming Mill Liners had focused to cast this material for our customer. Our Ni-hard iron mill liners span life more than other foundries mill liners.

Ni-Hard Cast Iron is well known for its durability and quality. The materials made of up Ni-Hard are wear resistant and have extended life as compared to other cast iron or mild steel. Nickel content increases with section size or cooling time and prevents pearlitic transformation of the cast iron.

This material The use of this type of material generally began with Rod Mills and Ball Mills, where impacts were considered low enough for this brittle yet highly abrasive resistant wear material to perform well. However, it is now considered obsolete in light of the use of high chrome irons and chrome moly white iron.

Features

  • Chromium usually included between 1.4-4% to ensure carbon phase  solidifies to carbide, not graphite. (Counteracts the graphitizing effect of Ni) ;
  • Abrasion resistance (usually desired property of this material) increases with carbon content, but toughness decreases;
  • Consists of martensite matrix, with nickel alloyed at 3-5% in order to suppress transformation of austenite to pearlite;
  • Abrasion resistance (usually desired property of this material) increases with carbon content, but toughness decreases ;
  • Various grades class I type A abrasion resistant; class I type B toughness;
  • Applications: Because of low cost, used primarily in mining applications as ball mill liners and grinding balls;
  • This material hardness: 550 BHN
Nihard Iron Mill Liners

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