75MnCr Material Forged and cast grinding balls mining with HRC55-65 Surface Hardness B2 60MN 65MN 45# manufacturer from China Oriental Casting and Forging Co., Ltd.

75MnCr Material Forged and cast grinding balls mining with HRC55-65 Surface Hardness

Place of Origin:

Shandong, China (Mainland)


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Product Detail

Model No.: B2 60MN 65MN 45#

Forging and casting grinding media ball in power plant with top quality<span style="font-family:arial,helvetic

Forging and casting grinding media ball in power plant with top quality

Mining/Ball Mill/Cement Mill used High Quality Low Price High Chrome Grinding Media Ball
1. Reliable High Quality .
2. Reasonable Price.
3. Timely Capable Service.
4. Diameter:13mm-150mm
5. High Hardness
6. High Wear Resistant
7. No Breakage
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

Feature:
1) High Hardness: The surface hardness of forged and rolling balls is to 60-65 HRC and volume hardness is to 60-63 HRC
2) High Impact Toughness: The 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 50-300 g/ton.

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 be supplied. The drums have a removable lid and compression ring for secure storage.Drums are more efficient for some modes of transportation and can also be delivered on wooden pallets.

Shipping
1.Port of Loading: Qingdao Port,China
2.Partial shippment allowed
3.By DHL/TNT express for samples order.Door to door to delivery;
4.Appointed freight forwarder by customers is acceptable

Our Services
1. Free samples for your test before orders;
2. Soonest delivery time ;
3. Cooperate with many famours shipping companies,and sent the goods to your port safe and in time;
4. Any feedback after sales would get our soonest reply.

WE LOOK FORWARD TO THE OPPORTUNITY TO DISCUSS HOW WE CAN BECOME A PARTNER IN YOUR SUPPLY CHAIN SOLUTION .