Dia 2 Inch Hot Rolling Ball Mill Grinding Media for gold mining B2 60MN 65MN 45# manufacturer from China Oriental Casting and Forging Co., Ltd.

Dia 2 Inch Hot Rolling Ball Mill Grinding Media for gold mining

Place of Origin:

Shandong, China (Mainland)


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Product Detail

Model No.: B2 60MN 65MN 45#

Dia 2 inch Hot Rolling Ball Mill Grinding Media for gold mining
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Dia 2 inch Hot Rolling Ball Mill Grinding Media for gold mining

Specifications:

1.Size: 17-220mm
2.High Hardness and Low Breakage
3.Good wear-resistance
4.Lower price and Good service

Our company has passed ISO9001: 2000 quality system authentication. Our factory was established in 1998. There are 180 employees now, covering an area of 20000 square meter. Our annual product of grinding balls is about 100000 ton. We mainly export our steel balls to Japan, Korea, Malaysia, Philippine, Canada, South-Africa, Chile etc more than 20 countries and areas.

The major character of our Grinding Balls is that: high hardness, low breakage, good wear-resistance, lower price. It is mainly used in cement plants, mines, power stations etc.

Specification:

Brand	Material	C	Mn	Si	Cr	P/S	Ni
DT-1	50Mn	0.48-0.56	0.65-1.0	0.17-0.37	0.15max	0.035max	0.05max
DT-2	60Mn	0.57-0.65	0.70-1.1	0.17-0.37	0.25max	0.035max	0.05max
DT-3	65Mn	0.62-0.75	0.90-1.2	0.17-0.37	0.25max	0.035max	0.10max
DT-4	75MnCr(B2)	0.72-0.85	0.70-0.90	0.17-0.35	0.40-0.60	0.035max	0.15max
DT-5	B3	0.50-0.65	0.4-1.0	1.40-1.80	0.77-1.10	0.035max	0.15max
DT-6	45#	0.42-0.48	0.50-0.80	0.17-0.37	0.15max	0.035max	0.05max

Nominal diameter (mm)	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
DIA 20 DIA 25 DIA 30 DIA 40 DIA 50	+2 -1	32 64 110 263 513	31250 15625 9090 3802 1949	55-65	≥12
DIA 60 DIA 70 DIA 80 DIA 90 DIA 100	+3 -2	888 1410 2104 2996 4110	1126 709 475 333 243
DIA 110 DIA 120 DIA 130	+4 -2	5457 7102 9030	182 140 110
DIA 140 DIA 150	+4 -3	11278 13871	88 72

The production process of the forged grinding balls
1). Raw material:
All the material is qualified with certificate and made in the Chinese largest steel production enterprise.
2). Different steel specifications ccording to the clients's requirements.
Main Steel Material :C45 Steel;60Mn Steel;B2 Steel
3). Steel Cutting:
the steel bars should be cut into small pieces according to the size of steel balls required by the order.
4). Heating:
we use the electric furnace instead of the traditional coal stove, the biggest advantage is that all the steel bars can accept the most approriate temperature during the heating progress. It affect the hardness and toughness directly.
5). Hammer forging:
The raw material is forged to a certain deformation by the air hammer, when the compression ratio increased, the micro-structure become more compact so that the hardness and the toughness can be improved.
6). Heat treatment:
Both the water quenching heat treatment production line and our own temperature control technics are important.
We have mature production technicians responsible for the heat treatment process as we know this process affect the grinding balls performance directly.
7). Quality Control.
Raw material test before production
Hardness test Drop Test Impact Test Core pulling Test after production
SGS test before delivery
Certificate: ISO 9001:2008

Packing:
1.Bags:1000KG polypropylene bags which are highly resistant to UV rays and secure bag straps to reduce time and effort in loading and unloading.
2.Drums:Recyeled drums can also