Grinder Balls for Silver Ore Mine Mineral Processing

Grinder balls for silver ore mine mineral processing, Give me a chance, we help you to save ball consumption 10-30% as return!

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Grinder Balls For Silver Ore Mine Mineral Processing Introduction
Grinder balls for silver ore mine mineral processing, Give me a chance, we help you to save ball consumption 10-30% as return!

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Technical Datas
Application: Grinder Balls For Silver Ore Mine Mineral Processing, mostly used in all types of ball mills.
Grinding ball size range: From 25mm(1 inch) to 125mm(5 inches)
Original: Jiangyin, Jiangsu, China
Certification: ISO9001, ISO14001, OHSAS18001 etc.
Price: Negotiable
Material: Alloy Steel
Payment term: TT, LC
Delivery date: Negotiable

Grinder Balls For Silver Ore Mine Mineral Processing see below lists:

Steel Rod Type: B2, Chemical Comments (Grinder Balls For Silver Ore Mine Mineral Processing)
C	Si	Mn	P	S	Cr
0.76-0.82	0.17-0.35	0.72-0.80	≤0.020	≤0.015	0.50-0.60
Ni	Cu	Mo	Alt	V
≤0.25	≤0.20		0.020-0.050
Grinder Balls For Silver Ore Mine Mineral Processing Quality Performance
Ball Size	Surface Hardness		Core Hardness		Volume Hardness
25mm	63-64 HRC		62-63 HRC		62-64 HRC
30mm	63-64 HRC		62-63 HRC		62-64 HRC

Steel Rod Type: B2, Chemical Comments (Grinder Balls For Silver Ore Mine Mineral Processing)
C	Si	Mn	P	S	Cr
0.76-0.82	0.17-0.35	0.72-0.80	≤0.020	≤0.015	0.50-0.60
Ni	Cu	Mo	Alt	V
≤0.25	≤0.20		0.020-0.050
Grinder Balls For Silver Ore Mine Mineral Processing Quality Performance
Ball Size	Surface Hardness		Core Hardness		Volume Hardness
40mm	62-64 HRC		61-63 HRC		61-64 HRC
50mm	61-64 HRC		60-63 HRC		60-63 HRC

Steel Rod Type: B3, Chemical Comments (Grinder Balls For Silver Ore Mine Mineral Processing)
C	Si	Mn	P	S	Cr
0.61-0.65	1.73-1.80	0.73-0.80	≤0.020	≤0.015	0.80-0.88
Ni	Cu	Mo	Alt	V
≤0.25	≤0.20
Grinder Balls For Silver Ore Mine Mineral Processing Grinding Ball Quality Performance
Ball Size	Surface Hardness	Core Hardness	Volume Hardness	Impact Toughness
60mm	61-63 HRC	59-61 HRC	59-62 HRC	≥14 J/CM2
70mm	61-63 HRC	59-61 HRC	59-62 HRC	≥16 J/CM2
80mm	61-63 HRC	59-61 HRC	59-62 HRC	≥18 J/CM2
90mm	61-63 HRC	59-61 HRC	59-62 HRC	≥20 J/CM2
100mm	60-62 HRC	58-60 HRC	58-62 HRC	≥22 J/CM2

Steel Rod Type: B3, Chemical Comments (Grinder Balls For Silver Ore Mine Mineral Processing)
C	Si	Mn	P	S	Cr
0.61-0.65	1.73-1.80	0.73-0.80	≤0.020	≤0.015	0.80-0.88
Ni	Cu	Mo	Alt	V
≤0.25	≤0.20
Grinder Balls For Silver Ore Mine Mineral Processing Quality Performance
Ball Size	Surface Hardness	Core Hardness	Volume Hardness	Impact Toughness
120mm	60-62 HRC	58-60 HRC	58-62 HRC	≥24 J/CM2
125mm	60-62 HRC	58-60 HRC	57-61 HRC	≥26 J/CM2

Packing: Plastic Ton Bag, 1000Kgs Each Bag, or, Iron Drum

Market: Worldwide

Min Order Quantity: 100 Tons Each Ball Size

FAQ

1.What is your production method on grinding ball size from D25MM-D100MM ?

A: Our method is hot rolling (Hot Scew Rolling).

2.What is your production method on grinding ball size from D100MM – D140MM ?

A: Our method is quick hammer at first to get a "ball shape", then use rolling machine to make the ball get even roundness.

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Difference between Hot rolled grinding balls and casted balls:

1.First, the materials used by hot rolled grinding balls and casted balls are different;

Hot rolled grinding balls---The material used is a low-alloy high-carbon steel, which is finished round steel made by regular special steel works. Meanwhile, the steel ball shall be made by hot rolled extrusion of billet with the compression rate above 15 times;

Casted balls---The material used is mainly steel scrap collected and added with specific proportions of alloy elements.

2.Different principles to form the hardness of steel balls

Hot rolled grinding balls have been tested by authoritative organization. The hardness of hot rolled balls made by our company has reached 60-65HRC. The steel balls will be quickly cooled down by special quenching for promoting the transfer of austenite in metallic structure into martensitic structure with considerable wear-resistant hardness, so the hardness is produced by quenching.

The specific hardness and wear resistance of casted balls are produced by adding specific amount of alloy element chromium(Cr). The higher content of Cr will result in better hardness and wear resistance and higher cost of steel balls; presently, the content of Cr in china reaches up to 18-25%, with the hardness at 60-64HRC and good wear resistance, but the price is more than 20-40% over hot rolled grinding balls.

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