Grinding Ball Forged Steel Balls
Introduction of the Forged steel balls
JUNDA company produces φ20 to φ 150 forged steel balls ,select high quality round steel,low-carbon alloy ,high manganese steel,high carbon and high manganese alloy steel as raw material produced by air hammer forging process.
Size: Dia20- 150mm
Material: C45, 60Mn, 65Mn, 40Cr 42 Crmo,B2,B3, B6
Hardness: C45:48-55HRC, 60Mn:57-61HRC,
B2:60-64HRC, B3:62-65HRC, B6:62-65HRC
We select high-quality round steel as raw materials, and adopts advanced equipment, unique heat treatment process and strict quality control system to make our forged steel balls have a better performance in the overall hardness, surface hardness up to 58-65HRC, volume hardness up to 56-64HRC.
The hardness distribution is uniform, the impact toughness value is 12J/cm2,and the crushing rate is far less than 1%. Forged steel ball chemical composition: carbon content in 0.4-0.85, manganese content in 0.5-1.2, chromium content in 0.05-1 2.
We can product different size according to customer's request.
TECHNICAL PARAMETERS OF FORGING STEEL BALL
| Technical parameters of forging steel ball |
| Inch |
Size |
T weight |
Tolerance(mm) |
Material |
Surface hardness(HRC) |
Volume hardness(HRC) |
| 3/4" |
D20mm |
0.037+/-0.005 |
2+/-1 |
B2 |
63-66 |
63-66 |
| 1" |
D25mm |
0.072+/-0.01 |
2+/-1 |
B2 |
63-66 |
63-66 |
| 11/4" |
D30mm |
0.13+/-0.02 |
2+/-1 |
B2 |
63-66 |
63-66 |
| 11/2" |
D40mm |
0.30+/-0.04 |
2+/-1 |
B2 |
62-66 |
62-66 |
| 2" |
D50mm |
0.6+/-0.05 |
2+/-1 |
B2 |
62-65 |
61-64 |
| 21/2" |
D60mm |
1.0+/-0.05 |
2+/-1.5 |
B2 |
62-65 |
60-62 |
| 21/2" |
D65mm |
1.3+/-0.05 |
2+/-1.5 |
B2 |
61-64 |
60-62 |
| 21/2" |
D65mm |
1.3+/-0.05 |
2+/-1.5 |
B3 |
61-63 |
60-62 |
| 3" |
D75mm |
2.0+/-0.06 |
3+/-2 |
B3 |
61-63 |
60-62 |
| 3"(Hot rolled) |
D80mm |
2.0+/-0.06 |
3+/-2 |
B3 |
60-63 |
60-62 |
| 3"(Forged) |
D80mm |
2.1+/-0.06 |
3+/-2 |
B3 |
60-62 |
53-57 |
| 31/2" |
D90mm |
3.0+/-0.07 |
3+/-2 |
B3 |
60-63 |
59-62 |
| 4" |
D100mm |
4.1+/-0.15 |
3+/-2 |
B3 |
60-63 |
59-62 |
| 4.5" |
D115mm |
6.3+/-0.15 |
3+/-2 |
B3 |
60-63 |
57-60 |
| 5" |
D125mm |
8.1+/-0.3 |
3+/-2 |
B3 |
59-62 |
55-60 |
| Chemical composition |
C% |
Si% |
Mn% |
Cr% |
P% |
S% |
Ni% |
| B2 |
0.72-1.03 |
0.15-0.35 |
0.3-1.2 |
0.2-0.6 |
≤0.035 |
≤0.035 |
i≤0.25 |
| B3 |
0.53-0.88 |
1.2-2.00 |
0.50-1.20 |
0.7-1.20 |
≤0.035 |
≤0.035 |
i≤0.25 |
PRODUCT PROCESS
- Raw material testing
- Mixture
- Heating
- Forged hot rolled
- Heat treatment
- Testing
- Storage
TEST AND PACKAGE
COMPANY INTRODUCTION
Junda forged steel ball, relied on advanced equipment and production technology, our forged steel ball has the advantages of high hardness, good technology, our forged steel ball has the advantages of high hardness, good wear resistance, no fracture, uniform wear and so on.
The forged steel ball Mainly used in various mines, cement plants, power stations, chemical industry and other industries. In order to ensure the excellent performance of grinding ball, we have established a perfect quality testing system, advanced quality control and testing equipment.
If any need, please do not hesitate to contact us!
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