Xuzhou H&G Wear-resistant Material Co., Ltd. was established in 1989

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Forged Grinding Balls

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Products Description
Forged grinding ball is used in metal mining. The property- high anti impact value, good toughness and low breakage, indicates its excellent appliaction at Ming industry for SAG mill .
 
Application:
 
1.

In mineral processing Industry,  deal with various natural ores:

  • Iron
  • Platinum
  • Gold 
  • Copper
  • Bauxite
  • Lead – Zinc
  • Rock phosphate
  • Metal slag
  • Coal
2. Sag mill 
 
3.Ball mill with Dia over 6m 
 
 
Chemical Elements
Material Chemical Elements (%)
C Mn Si Cr S P
50MN 0.48-0.56  0.70-1.0 0.17-0.37 ≤0.25 ≤0.035 ≤0.035
60MN 0.57-0.65  0.50-0.80 0.17-0.37 ≤0.25  ≤0.035 ≤0.035
65MN 0.62-0.70 0.90-1.20 0.17-0.37 ≤0.25 ≤0.035 ≤0.035
75Mn 0.72-0.92 0.70-1.20 0.17-0.37 0.4-0.6 ≤0.035 ≤0.035
75MnCr 0.70-0.85 0.70-0.80 0.17-0.37 0.2-0.7 ≤0.03 ≤0.03
 75SiMn 0.70-0.90 0.70-1.20 0.4-0.8 ≤0.25  ≤0.03 ≤0.03
 B2 0.70-0.85 0.70-0.80 0.17-0.37 0.2-0.7 ≤0.035 ≤0.035 
 40Cr 0.37-0.44 0.50-0.80 0.17-0.37 0.8-1.10 ≤0.035 ≤0.035 
45# 0.42-0.50 0.50-0.80 0.17-0.37  ≤0.25 ≤0.035 ≤0.035

Physical Property & Microstructure
Material AK.J/cm2 Falling Ball Times Surface HRC Core HRC Microstructure
 50MN ≥12  ≥10000  ≥56 ≥48 M+C
 60MN ≥15  ≥12000  ≥58 ≥50 M+C
 65MN ≥15  ≥12000  ≥60 ≥50 M+C
75Mn   ≥17 ≥12000 ≥60 ≥52 M+C
75MnCr  ≥16  ≥12000  ≥60 ≥50 M+C
75SiMn  ≥17  ≥12000  ≥60 ≥54 M+C
 B2 ≥15  ≥12000  ≥60 ≥50 M+C
 45# ≥12  ≥10000  ≥52 ≥45 M+C
M-Martensite        C-Carbide

Specification

Size(mm) Tolerance(mm) Weight(kg/pc) Quantity(pcs/ton)
Φ20 +2
-1
0.032 31250
Φ25 0.064 15625
Φ30 0.11 9090
Φ40 0.263 3802
Φ50 0.513 1949
Φ60 +3
-2
0.888 1126
Φ70 1.41 709
Φ80 2.104 475
Φ90 2.996 333
Φ100 4.11 243
Φ110
+4
-2
 
5.457 182
Φ120 7.102 140
Φ130 9.03 110
Φ140 +4
-3
11.278 88
Φ150 13.871 72

 

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