Specifications

1:High hardness wear resistance,Low breakage
2:HRC55-67
3:Diameter 20mm-150mm
4:Certification:ISO9001
5:Used to Ball mill

 

HRC 57-65 Mining Ball Mill Grinding Media

 

1.Feature:

1) In general, grinding steel ball has high hardness: surface hardness to 55-68 HRC, volume hardness of 50-63 HRC

2) impact toughness high: impact toughness more than 12 J / cm2.

3) broken rate is low: the actual broken rate is not higher than 1%.

4) loss of grinding forged steel ball round rate is low.

 

2.Chemical Composition of Forged Grinding Ball

Based on material,the forged steel balls are defined into 7 brands. And The chemical composition is shown in the following:

Brand	Material	C	Mn	Si	Cr	S	P	V
TITLE-1	50MN	0.48-0.56	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
TITLE-2	60MN	0.57-0.65	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
TITLE-3	65MN	0.60-0.70	0.90-1.20	0.17-0.37	≤0.25	≤0.035	≤0.035
TITLE-4	75Mn	0.72-0.92	0.90-1.20	0.17-0.37	0.4-0.6	≤0.035	≤0.035
TITLE-5	75MnCr(B2)	0.70-0.85	0.7-0.8	0.17-0.37	0.2-0.7	≤0.03	≤0.03
TITLE-6	75SiMn	0.70-0.90	0.7-1.2	0.4-0.8	≤0.25	≤0.03	≤0.03
TITLE-7	Wear-resistant Alloy	0.5-0.65	0.4-1.0	1.4-1.8	0.9-1.2	≤0.03	≤0.03	0.1-0.2

 

3.Chemical Composition of Casting Grinding Ball

Based on material,the casting steel balls are defined into 6 brands. And The chemical composition is shown in the following:

Name	Model	Material	C	Si	Mn	Cr	S	P
TITLE-8	High Chrome	Cr-22-32%	2.0-2.8	≤1.0	0.5-2.0	22-32	≤0.06	≤0.08
TITLE-9		Cr-17-22%	2.0-2.8	≤1.0	0.5-2.0	17-22	≤0.06	≤0.08
TITLE-10		Cr-14-17%	2.2-3.0	≤1.0	0.5-2.0	15-17	≤0.06	≤0.08
TITLE-11		Cr-10-14%	2.2-3.2	≤1.0	0.5-2.5	11-14	≤0.06	≤0.08
TITLE-12	Medium Chrome	Cr-5-10%	2.1-3.2	≤1.2	0.5-1.5	5-10	≤0.06	≤0.08
TITLE-13	Low Chrome	Cr-1.0-5%	2.2-3.5	≤1.2	0.5-1.5	1.5-3	≤0.06	≤0.08

 

4.Specification of Grinding Ball

 

5.Specification of Casting Grinding Ball

1)High chrome cast balls
Size: 20mm-120mm

Hardness:HRC58-65; Chrome content:11-14%
2)Low chrome cast balls
Size: 20mm-120mm
Hardness:HRC45-55; Chrome content:1-3.5%

 

6.Main Process of Forged Steel Ball

(1)Raw material.(2)Cutting.(3)Heating.(4)Forging.(5)Quenching.(6)Tempering.(7)Testing.(8)Qualified Products.(9)Packing

 

7.Main Process of Casting Grinding Ball

(1)Raw material.(2)Scientific Proportioning.(3)Electric Furnace Smelting.(4)Assay Before Furnace.(5)Mould Forming.(6)Polishing.(7)Heat Treatment.(8)Qualified Products.(9)Packing

 

8.Applied Field

1).Cement Plants 2).Mines 3).Power stations 4).Chemical Industries 5).Grinding Mill, Ball mill, Coal mill

 

9. Products Name

Grinding Ball, Steel Ball, Grinding Rod, Grinding Bar, Grinding Cylpebs, Ball Mill Liner Plate, Grinding Steel Ball, Grinding Iron Ball, Mill Ball, Forged Steel Ball, Forging Steel Ball, Forged Grinding Ball, Forging Grinding Ball, Forged Ball, Forging Ball, Forged Grinding Steel Ball, Forged Steel Grinding Ball, Cast Grinding Ball, Casting Grinding Ball, Casted Grinding Ball, Cast Iron Ball, Casting Ball, Cast Ball, Casted Ball, High Chrome Cast Ball, High Chrome Casting Ball, High Chrome Cast Grinding Ball, High Chrome Cast Iron Ball, High Chrome Ball, Low Chrome Cast Ball, Low Chrome Casting Ball, Low Chrome Cast Grinding Ball, Low Chrome Cast Iron Ball, Low Chrome Ball, Medium chrome cast grinding ball, Medium Chrome Casting Ball, Medium Chrome Cast Grinding Ball, Medium Chrome Cast Iron Ball, Medium Chrome Ball,Grinding Ball, Steel Ball, Grinding Steel Ball, Steel Grinding Ball,Grinding Media, Grinding Media Steel Ball, Cement Mill Grinding Media, Steel Grinding Media Mill Ball, Grinding Media Steel Ball,Iron Grinding Ball For Ball Mill, Grinding Mill Ball, Mill Grinding Media Balls, Cement Milling Steel Balls For Mill, Forged Grinding Ball For Mill, Forged and Casting Grinding Steel Ball,Forged Steel Grinding Ball, Forged Steel Grinding Media Ball,Steel Grinding Mill Ball, Forged Steel Media Ball, Forged Grinding Steel Mill Balls, HRC 57-65 Mining Ball Mill Grinding Media

 

10. Packaging

(1) Steel Drums

 

(2)Container Bags

 

11. Photos of Products, Factory, Raw materials, Cutting Material, Processing Line, Testing, Packaging