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Oriental Casting and Forging Co., Ltd.  

Gold Index: 9250

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Even hardness and unbreakable 40mm Steel grinding media / Forged Grinding Ball 

Place of Origin: Shandong, China (Mainland) 
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Product Detail

Model No.: B2

Even hardness & unbreakable 40mm grinding media Forged Grinding Ball
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Even hardness & unbreakable 40mm grinding media Forged Grinding Ball

Breif Description:

Specifications
1. Diameter:20mm-150mm(0.75''-6'')
2. Surface Hardness:
Forged ball:58-65HRC
Casted ball:60-65HRC
3. Material:
Forged ball:Steel
Casted ball:Iron
4. Technology:Forged & Casted ,heat treated
5. Unbreakable:0.5 Max.
6. Impact Toughness:>12
7. times of falling ball:5000 min.
8. microstructure:P+C
9. Application: gold & iron mine,steel works,cement plant and power station
10. Certificate: ISO9001:2008

 

Chemical composition:

Material C Mn Si Cr S P
50MN 0.48-0.56 0.70-1.0 0.17-0.37 0.25 max 0.035max 0.035max
60MN 0.57-0.65 0.70-1.0 0.17-0.37 0.25 max 0.035max 0.035max
65MN 0.60-0.70 0.90-1.20 0.17-0.37 0.25 max 0.035max 0.035max
75Mn 0.72-0.92 0.17-0.37 0.7-1.0 0.4-0.6 0.035max 0.035max
75MnCr 0.70-0.85 0.7-0.8 0.17-0.37 0.2-0.7 0.03 max 0.03 max
75SiMn 0.70-0.90 0.7-1.2 0.4-0.8 0.25 max 0.03 max 0.03 max

 

Specifications:

Ball diameter Diameter tolerance Weight of single ball in average Number of piece of one ton ball in average Surface hardness Core hardness Impact toughness
(mm) (mm) (g) (pcs) (HRC) (HRC) (J/cm2)
Φ20 +2,-1 32 31250 60-67 57-62 ≥12
Φ25 +2,-1 64 15625 60-67 57-62 ≥12
Φ30 +2,-1 110 9090 60-67 57-62 ≥12
Φ40 +2,-1 263 3802 60-67 57-62 ≥12
Φ50 +2,-1 513 1949 60-67 57-62 ≥12
Φ60 +3,-2 888 1126 58-65 50-56 ≥12
Φ70 +3,-2 1410 709 58-65 50-56 ≥12
Φ80 +3,-2 2104 475 58-65 50-56
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Company Info

Oriental Casting and Forging Co., Ltd. [China (Mainland)]


Business Type:Manufacturer
City: Jinan
Province/State: Shandong
Country/Region: China (Mainland)

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