forged grinding ball 1: diameter: 20~150mm 2: HRC: 50~65 3: material: steel 4: ISO9001:2008

forged grinding ball 1. High hardness2. Good wear resistance3. High toughness4. No mal-roundness

 Applied Fields

1. Mines

2. Cement Plants

3. Chemical Industries

4. Power Stations

 We are the professional manufacturer of steel grinding ball. Our products have been exported to more than 40

countries in the world and all have enjoyed a great reputation. 

Type and Chemical Composition of Forged Steel Ball

Name	Material	C	Mn	Si	Cr	S	P
DZ-1	50Mn	0.48-0.56	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
DZ-2	60Mn	0.57-0.65	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
DZ-3	65Mn	0.60-0.70	0.90-1.2	0.17-0.37	≤0.25	≤0.035	≤0.035
DZ-4	B2	0.70-0.85	0.70-0.80	0.17-0.37	0.2-0.7	≤0.03	≤0.03
DZ-5	75SiMn	0.70-0.90	0.70-1.20	0.4-0.8	≤0.25	≤0.03	≤0.03
DZ-6	Wear-resistant Alloy	0.50-0.65	0.4-1.0	1.4-1.8	0.9-1.2	≤0.03	≤0.03

Physical Property of Forged Steel Ball

Name	Materials	Impact Test(Ak.J/cm²)	Endurance Test Times(5m/T)	Surface Hardness (Φ25mm- Φ60mm)	Core Hardness (Φ25mm- Φ60mm)	Surface Hardness (Φ70mm- Φ100mm)	Core Hardness (Φ70mm- Φ100mm)	Breakage
DZ-1	50Mn	≥12	≥10000	≥56	≥35	≥56	≥28	<1%
DZ-2	60Mn	≥13	≥10000	≥58	≥38	≥58	≥29	<1%
DZ-3	65Mn	≥15	≥12000	≥60	≥42	≥60	≥30	<1%
DZ-4	B2	≥17	≥12000	≥60	≥52	≥60	≥50	<1%
DZ-5	75SiMn	≥16	≥12000	≥60	≥50	≥60	≥48	<1%
DZ-6	Wear-resistant Alloy	≥17	≥12000	≥60	≥54	≥60	≥52	<1%

  

Production process:

Trashiness steel

         ↓ ←Add other materials

Melt by high temperature

         ↓ ←Inspection

Pour to the mould ← Add soluble glass

         ↓

Open the mould after cooling

         ↓

Disconnect the the products by the clout

         ↓

Coarse grinding

         ↓

Grinding the angle

         ↓

Filtrating eligibility products

         ↓

Two times heat processing

         ↓

Finished products