1)High Cr cast balls and cylpebs HRC 58-65 2)low Cr cast balls and cylpebs HRC 47-55 3)applied:mine;cement plant;power staion

1.our main products

  high chrome alloyed cast grinding ball

  low  chrome alloyed cast grinding ball

  middle chrome alloyed cast gringding ball

   high chrome alloyed cast gringding bar

   low chrome alloyed cast grinding bar

   low chrome alloyed cast grinding bar

2.Dimation:

     cast grinding ball:  8mm ~130mm

3.Hardness

  special  high chrome: Surface HRC:≥60 

4.Applied field

    Cement plants,mines ,power station.chemical industry.

5.Chemical  composition

Item	Chemical  composition
	C	Si	Mn	Cr	Mo	Cu	P	S
Low chrome cast grinding ball	2.0~3.5	≤1.2	≤1.5	0.8~2.0	≤1.0	0.2~0.5	≤0.15	≤0.15
Middle chrome cast grinding ball	2.0~3.3	≤1.2	≤1.8	2.0~3.5	≤1.5	0.2~1.0	≤0.15	≤0.15
High chrome cast grinding ball	2.0~3.3	≤1.0	≤2.5	10~18	≤1.0	0.2~1.5	≤0.10	≤0.10
Special high chrome cast grinding ball	2.0~3.3	≤1.0	≤2.5	22~25	≤2.0	0.2~1.5	≤0.10	≤0.10

 6.Mechanical properties and microstructure examination

ITEM	Mechanical properties		microstructure
	HRC	Time of falling balls
Low chrome cast grinding ball	≥45	≥8000	P+C
Middle chrome cast grinding ball	≥48	≥12000	P+C
High chrome cast grinding ball	≥55	≥15000	M+C
Special high chrome cast grinding ball	≥60	≥22000	M+C

 6,photos

  

Special high chrome alloyed cast grinding balls(ISO9001:2000)