Product Details

Company Information

ZHANGQIU TAITOU SPECIAL STEEL BALL FACTORY is a manufacturer of grinding media, mainly including forged steel ball, casting grinding ball, grinding rod and cylpebs. For more information ,please refer to website:

Product Description

5'' rolling & forged steel balls for sag mill

1.Feature:

1) High Hardness: surface hardness of forged steel ball is to 60-68 HRC and volume hardness is to 60-63 HRC;

2) High Impact Toughness: impact toughness is more than 12 J/cm2;

3) Low Broken Rate: the actual broken rate is not higher than 1%;

4) Even Wear-resistance: the loss of ball round rate is 50-360 g/ton.

2.Chemical Composition of Forged Grinding Ball

Based on steel material, the forged steel balls are defined into 7 brands. And their chemical composition is shown in the following:

Brand	Material	C	Mn	Si	Cr	S	P	V
TITLE-1	50MN	0.48-0.56	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
TITLE-2	60MN	0.57-0.65	0.70-1.0	0.17-0.37	≤0.25	≤0.030	≤0.030
TITLE-3	65MN	0.60-0.70	0.70-1.20	0.17-0.37	≤0.25	≤0.030	≤0.030
TITLE-4	75Mn	0.72-0.92	0.70-1.20	0.17-0.37	≤0.25	≤0.030	≤0.030
TITLE-5	75MnCr(B2)	0.72-0.85	0.70-1.20	0.17-0.37	0.42-0.85	≤0.030	≤0.030
TITLE-6	B3	0.5-0.65	0.4-1.0	1.4-1.8	0.9-1.2	≤0.030	≤0.030	0.1-0.2

3.Product Description of Forged Grinding Ball

Brand	Impact Test AK.J/cm2	Endurance Test Times(5m)	Surface Hardness	Core Hardness
TITLE-1	≥12	≥10000	≥56	≥48
TITLE-2	≥13	≥10000	≥58	≥50
TITLE-3	≥15	≥12000	≥60	≥50
TITLE-4	≥17	≥12000	≥62	≥55
TITLE-5	≥16	≥12000	≥60	≥60
TITLE-6	≥17	≥12000	≥60	≥50