Dia 1 inch - 5 Inch Forged Grinding Media Steel Balls HRC 55-65 Grinding Media Balls manufacturer from China Oriental Casting and Forging Co., Ltd.

Dia 1 inch - 5 Inch Forged Grinding Media Steel Balls HRC 55-65

Place of Origin:

Shandong, China (Mainland)


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Product Detail

Model No.: Grinding Media Balls

Dia 1 inch to 5 Inch Forged Grinding Media Steel Ball HRC 55-65
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Dia 1 inch to 5 Inch Forged Grinding Media Steel Ball HRC 55-65

THE PROCESS LINE OF PRODUCTION:

Raw materilals----Cuttlng----Stove----Forglng----Transter machine----Quenching----Heat treament----Dimension test----Hardness test----Packing----Transportation----Sea freight

High Hardness: The surface hardness of forged and rolling balls is to 60-65 HRC and volume hardness is to 60-63 HRC

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

Low Broken Rate: The actual broken rate is not higher than 1%;

Even Wear-resistance: The loss of ball round rate is 50-300 g/ton.

Chemical composition:

Material	C	Mn	Si	Cr	S	P
50MN	0.48-0.56	0.70-1.0	0.17-0.37	0.25 max	0.035max	0.035max
60MN	0.57-0.65	0.70-1.0	0.17-0.37	0.25 max	0.035max	0.035max
65MN	0.60-0.70	0.90-1.20	0.17-0.37	0.25 max	0.035max	0.035max
75Mn	0.72-0.92	0.17-0.37	0.7-1.0	0.4-0.6	0.035max	0.035max
75MnCr	0.70-0.85	0.7-0.8	0.17-0.37	0.2-0.7	0.03 max	0.03 max
75SiMn	0.70-0.90	0.7-1.2	0.4-0.8	0.25 max	0.03 max	0.03 max