1.Material:steel

2.Place of Origin: Shandong, China (Mainland)

3.High hardness: The surface hardness can be 57- 67HRC

4.Low breakage rate: The peel resistance and breakage resistance are more than 10times than the peel resistance and breakage resistance of traditional steel balls. When the ball impacts more than 12000times, the actual breakage rate is less than 1% nearly no breakage.

5.High impact toughness

6.Good wear resistance

7.Dia:20mm-150mm

8.Appearance: Roundness, No crack and scars on the surface

9.Metallurgical Structure: microstructure is uniform from edge to center

Chemical elements:
DT-1: 45# C:0.42-0.50 Mn:0.50-0.80 Si:0.17-0.37 Cr:0.2 max P: 0.035max Ni:0.25max Cu:0.25max
DT-2: 60Mn C:0.57-0.65 Mn:0.7-1.0 Si:0.17-0.37 Cr:0.25max S:0.035max P:0.035max Ni:0.3max Cu:0.25max
DT-3: 65Mn C:0.62-0.70 Mn:0.9-1.0 Si:0.17-0.37 Cr:0.25max S:0.035max P:0.035max Ni:0.3max Cu:0.25max
DT-4: B2 C:0.72-0.92 Mn:0.7-1.2 Si:0.17-0.37 Cr:0.4-0.6 S:0.04max P:0.04max
DT-5: 42Cr C:0.38-0.45 Mn:0.50-0.80 Si:0.17-0.37 S:0.035max P:.35max Cr:0.9-1.2 Ni:0.3max Cu:0.30max

 

Specification and Hardness:

Nominal diameter (mm-inches)	Diameteical tolerance (mm)	Weight of Single of forging ball in average	Number of piece of One ton forging ball in average	Surface hardness	Impact toughness
20-0.8" 25-1.0" 30-1.2" 40-1.6" 50-2.0"	+2 -1	32 64 110 263 513	31250 15625 9090 3802 1949	55-67	>12
60-2.4" 70-2.8" 80-3.2" 90-3.6" 100-4.0"	+3 -2	888 1410 2104 2996 4110	1126 709 475 333 243
110-4.4" 120-4.8" 130-5.2"	+4 -2	5457 7102 9030	182 140 110
140-5.6" 150-6.0"	+4 -3	11278 13871	88 72

 

Characteristics:

High Hardness     Good Wear Resistance     No Breakage     Even Wearing

 

Applide field:

Mines     Cement Plants     Power Stations     Chemical Industries