125mm forged Steel Grinding Media Balls

125mm(5") forged steel grinding media balls, multi choices upon different raw material chemical, promise you high and even volume hardness, strong impact toughness.

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125mm(5") forged steel grinding media balls, multi choices upon different raw material chemical, promise you high and even volume hardness, strong impact toughness.

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ISO9001, ISO14001, OHSAS18001 etc.


Steel rod, 80mm	125-126mm	7800-8000 grams

50 tons (2x20'GP)
How we make 125mm Forged Steel Grinding Media Balls ?
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Choice 1#:

Steel Rod Type: B3, Chemical Comments
C			P	S
0.61-0.65	1.73-1.80	0.73-0.80	Less than or equal to 0.020	Less than or equal to 0.015	0.80-0.88
				V
Less than or equal to 0.25	Less than or equal to 0.20
125mm Forged Steel Grinding Media Balls Quality Parameter

125mm/B3	60-62 HRC	57-60 HRC	56-62 HRC	Greater than or equal to 28 J/CM2

Choice 2#:

Steel Rod Type: B4, Chemical Comments
C			P	S
0.66-0.74	1.2-1.4	0.50-0.70	Less than or equal to 0.022	Less than or equal to 0.022	0.85-1.0
				V
	Less than or equal to 0.40		0.025-0.045	0.05-0.15
125mm Forged Steel Grinding Media Balls Quality Parameter

125mm/B4	61-63 HRC	58-60 HRC	57-62 HRC	Greater than or equal to 24 J/CM2

Choice 3#:

Steel Rod Type: B6, Chemical Comments
C			P	S
0.74-0.85	0.15-0.35	0.90-1.05	Less than or equal to 0.020	Less than or equal to 0.020	0.88-0.98
				V
Less than or equal to 0.25	Less than or equal to 0.25	0.06-0.13	0.025-0.045
125mm Forged Steel Grinding Media Balls Quality Parameter

125mm/B6	61-63 HRC	57-60 HRC	59-62 HRC	Greater than or equal to 28 J/CM2

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Detailed explainations on above production flow on 125mm Forged Steel Grinding Media Balls:
1.Use step up heating furnace or induction furnace to heat on 80mm Dia steel rod;
2.Hot cutting machine cut the heated steel rod to fixed length we request;
3.Use magic hand to pick up cutted hot steel rod piece and feed to quick hammer machine;
4.Quick hammer machine hammer the cutted steel rod to a ball shape;
5.Use rolling machine to get round and smooth ball surface;
6.Cool the ball, then send into reheating furnace to reheat on ball to organize the microstructure of the steel ball;
7.Reheated ball will do the quenching treatment after cool to requested temperature;
8.The ball after quenching treatment, will send into tempering furnace, it will take 12 hours to finish the entire tempering progress on 125mm balls for complete stress relief;
9.Tempered ball will cool to room temperature on cooling plate, then do the export packing upon client's request.

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