20-*150mm
60mn; B2;B3; B4
>90%
Construction, Machinery, Grind, Refractory Material
Forged
20mm to 150mm
Black
Non-Customized
Forged Steel Ball
0.2-0.6
Greater or Equal to 60 HRC
Greater or Equal to 55 HRC
Iron Drum/Ton Bag
ISO9000
Cement Plant
Power Station
Sea
17 Years
Enegy Factory
Factory
JUNDA
Drum/Ton Bag
20 25 30
China
7326110000
Product Description
Forged Steel Grinding Media Ball Cast Iron Balls Silicon Manganese Balls Factory


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
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.
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





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
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.
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 | ||||||||||||
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 |
- Raw material testing
- Mixture
- Heating
- Forged hot rolled
- Heat treatment
- Testing
- Storage

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.