Product Details

Specifications

1.High hardness;
2.Even hardness and long life;
3.High wear-resistance;
4.High impact toughness;
5.Unbreakable

Features:

Best selling steel products--JINCHI hot-forging (hot-rolling) alloy steel grinding mill ball :
1.High hardness;

2.Even hardness no matter surface or core;

3.High wear resistance,more dense tissue and abrasion lower;

4.High impact toughness ;
5.Unbreakable;

6.No deformation;

7.Good apperance and look better;

8.Long life;

9. High combined efficiency of grinding mill;
10.Manufacturerer

Service:

1.offer the solutions to your problems,

2.after -sale service,

3.regional manager track,

4.SGS Service

Chemical Elements:

C	Si	Mn	Cr	S	P
0.50-0.65	0.15-0.37	0.69-1.2	≤0.25	≤0.04	≤0.04
0.7-0.9	0.45-0.75	0.7-1.25	0.11-0.4	≤0.04	≤0.04

Specifications and Hardness of Forging Ball:

Nominal

Diameter

(mm)

Diameterical

Tolerance

(mm)

Weight of Single

Forging Ball in

Average(g)

Number of piece

of OneTon Forging

Ball in Average

Surface

Hardness

(HRC)

Impact

Toughness

(j/cm2)

¢20

¢ 25

¢ 30

¢ 40

¢ 50

-1

110

263

513

31250

15625

9090

3802

1949

50-65

≥12

¢ 60

¢ 70

¢ 80

¢ 90

¢ 100

-2

888

1410

2104

2996

4110

1126

709

475

333

243

¢ 110

¢ 120

¢ 130

-2

5457

7102

9030

182

140

110

45-60

¢ 140

¢ 150

-3

11278

13871

Physical Property of Forged Alloy Steel Ball:

Materials	Impact Test (Ak.J/cm²)	Endurance Test Times (5m/T)	Surface Hardness (Dia25mm-90mm)	Core Hardness (Dia25mm-90mm)	Surface Hardness (Dia90mm-150mm)	Core Hardness (Dia90mm-150mm)	Breakage
50Mn	≥12	≥10000	≥52	≥42	≥50	≥40	<0.5%
60Mn	≥13	≥10000	≥52	≥42	≥50	≥40	<0.5%
65Mn	≥15	≥12000	≥54	≥44	≥52	≥42	<0.5%
B2	≥17	≥12000	≥60	≥52	≥58	≥50	<0.5%
75SiMn	≥16	≥12000	≥60	≥52	≥58	≥50	<0.5%
Impact -resistant Alloy	≥17	≥10000	≥50	≥40	≥48	≥38	<0.5%
Wear-resistant Alloy	≥17	≥12000	≥60	≥52	≥58	≥50	<0.5%

Hardness control table:

The Chemical Composition of Forged Alloy Steel Ball Is as Follows:

Material	C	Si	Mn	Cr	S	P	Times of Endurance impact test
50Mn	0.48-0.56	0.17-0.37	0.70-1.00	≤0.25	≤0.035	≤0.035	≥10000
60Mn	0.57-0.65	0.17-0.37	0.70-1.00	≤0.25	≤0.035	≤0.035	≥10000
65Mn	0.62-0.70	0.17-0.37	0.90-1.20	≤0.25	≤0.035	≤0.035	≥12000
B2	0.65-0.78	0.17-0.37	0.70-1.20	0.55-0.60	≤0.035	≤0.035	≥12000
75SiMn	0.70-0.90	0.40-0.80	0.70-1.20	≤0.25	≤0.035	≤0.035	≥12000
Impact -resistant Alloy	0.37-0.45	0.20-0.45	0.50-1.00	0.80-1.20	≤0.035	≤0.035	≥10000
Wear-resistant Alloy	0.75-0.90	0.15-0.42	0.65-1.10	0.88-1.20	≤0.035	≤0.035	≥12000

The Process Lline of Production:

Transport:

Certificate: