125mm wear resistant grinding balls for the copper mining

125mm wear resistant grinding balls for the copper mining:

a)New technology materials
b)Super quality
c)competitive price  

b.The features of our products:

1). Surface hardness: more than 60-65HRC, Volum hardness: 58-63HRC.

2). Breakage: Less than 0.1%

3). Impact toughness:  12-35J/cm²

4). Density: 7.8-7.85g/cm³

5). Endurance testing: more than 20000

6). Some products have past SGS Certificates

c.Abrasion: 

non-ferrous metal: 0.4KG-0.7KG, ferrous metal: 055KG-0.8KG.( The abrasion just for reference, the exact abrasion depends on the specific mine ore, 

the temperature, the ball mill and other conditions.)

d. Chemical of the products:

GN2A: C: 0. 70%-0.85%, SI: 0.17%-0.37%, Mn: 0.70%-0.80%,P: 0.035Max, 
S: 0.035Max,Cr: 0.20%-0.70%. Nb: 0.01%- 0.02% Cu: 0.03%-0.08%, 
w: 0.001Max, Mo: 0.002Max, V: 0.005Max, Tl: 0.004Max Al: 0.014Max 
B: 0.0005Max

45#: C:0.42%-0.50%, SI:0.17%-0.37%, Mn:0.50%-0.80%,P:≤0.035%,
 S: ≤0.035%,Ni: ≤0.3%, Cr: <0.25% 

60Mn: C:0.57%-0.65%, SI:0.17%-0.37%, Mn:0.50%-0.80%,
P:≤0.035%, S: ≤0.035%,Ni: <0.25%, Cr: <0.25%.

40Cr: C: 0.37%-0.44%, Si: 0.17%-0.37%, Mn:0.50%-0.80% Cr: 0.80%-1.10%, S: ≤0.035%, 
P:≤0.035%

3. Summarize:

 Our advantage: 1. Lower wear rate, 10% lower than other suppliers     

                              2.Competitive price, 10% lower than the same products

 4.Contact information:

Hebei Goldpro New Materials Technology Co.,Ltd,

Skype: alisa-niuniu

Cell phone:  +86-15028079202