grinding media

grinding media : even hardness unbreakable grinding resistant high impact value

grinding media :

application fields:industries of cement building material ,metallurgical selection in mine,grinding coal in power plant,chemical industry and machinery,etc

(SIZE):DIA 20-150mm

(HARDNESS):HRC 50-60

(CHEMICAL  ELEMENTS):

C:0.52-0.65   Si0.15-0.37

Mn:0.6-1.2    S:≤0.04   P:≤0.04    Cr:≤0.25

(SPECIFICATION  AND  HARDNESS  OF  FORGING  BALL)

Nominal diameter (mm)	Diameteical Tolerance(mm)	Weight of single ball in average(g)	Number of piece of one ton forging ball in average	Surface hardness(HRC)	Impact toughness (j/squre centimeter)
Φ20 Φ25 Φ30 Φ40 Φ50	+2 -1	32 64 110 263 513	31250 15625 9090 3802 1949	50-65	≥12
Φ60 Φ70 Φ80 Φ90 Φ100	+3    -2	888 1410 2104 2996 4110	1126 709 475 333 243
110 120 130	+4 -2	5457 7102 9030	182 140 110	45-60
140 150	+4 -3	11278 13871	88 72

(The process  line   production)

1,RAW MATERIALS  2,CUTING    3,STOVE  4, FORGING   

5,TRANSFERMACHINE    6,QUENCHING   7, PACKING   

8,HARDNESSTEST     9,DIMENSIONTEST   

10,HEATTREATMENT  

11,PACKIN(Product  performance)