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Diameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel Ball

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Diameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel Ball

Brand Name : ZTIC

Model Number : Customized

Certification : ISO/CE

Place of Origin : China

MOQ : 1 set

Price : negotiable

Payment Terms : L/C, T/T

Supply Ability : 300 sets per month

Delivery Time : 1-2 months

Packaging Details : regular packing

Product name : grinding steel mill balls

Surface Hardness : 58-65HRC

Out of Round Rate : 1%max

Microstructure : M+C

Impact Value : 15 J/CM^2

Diameter tolerance : +2mm,-1mm

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custom grinding steel mill balls Forged steel ball with high quality

Production process of Forged steel ball

1)Fully automatic production line of hot rolling steel ball

Manual put material into storage rack→automatic continued feeding device→stokehole pinch roll feeding device→furnace heating→pinch roll discharging speediness discharging→enter into rolling ball machine→rolling ball quenching system→steel ball sweltering self tempering device→finished product steel ball

2)Semi automatic production line of hot forging steel ball

Cutting raw material→furnace heating→forging→enter into rolling ball machine→Isothermal system→quenching system→steel ball sweltering self tempering device→finished product steel ball

3)Traditional production line of forged steel ball

Cutting raw material→furnace heating→forging→Isothermal system→quenching system→steel ball sweltering self tempering device→finished product steel ball

Diameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel BallDiameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel BallDiameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel BallDiameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel Ball

1.Diameter tolerance and roundness

Diameter 30 40 50 60 70 80 90 100 110 120 125 150
Diameter roundness(mm) ±2 +3,-2 +4,-3 +5,-4
Roundness(%) ≤2 ≤3 ≤4 ≤5

2.Chemical composition

Brand C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%) Ni(%)
45# 0.42-0.50 0.17-0.37 0.5-0.80 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
40Mn 0.37-0.44 0.17-0.37 0.7-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
50Mn 0.48-0.56 0.17-0.37 0.60-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
60Mn 0.57-0.65 0.17-0.37 0.70-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
65Mn 0.62-0.70 0.17-0.37 0.90-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
70Mn 0.67-0.75 0.17-0.37 0.90-1.20 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
40Cr 0.37-0.45 0.17-0.37 0.50-0.8 0.80-1.1 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
42CrMo 0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.2 0-0.03 0.15-0.25 0-0.035 0-0.035 0-0.30
70Cr2 0.65-0.75 0.20-0.30 0.75-0.90 0.55-0.70 0-0.25 0-0.30 0-0.030 0-0.030 0-0.30
40Mn2 0.37-0.44 0.17-0.37 1.4-1.8 0-0.25 0-0.25 0-0.30 0-0.035 0-0.30 0-0.30
70Mn2 0.65-0.75 0.20-0.45 1.4-1.8 0-0.25 0-0.25 0-0.30 0-0.035 0-0.030 0-0.30
B-1 0.52-0.65 0.17-0.37 0.60-1.2 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-2 0.70-0.80 0.17-0.37 0.70-0.80 0.50-0.60 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-3 0.58-0.66 1.2-1.6 0.65-0.80 0.70-0.90 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-4 0.60-0.65 1.6-1.7 0.7-0.8 0.7-0.8 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-6 0.75-0.85 0.2-0.40 0.9-1.0 0.85-0.95 0-0.25 0.06-0.13 0-0.035 02-0.035 0.06-0.13
B-6A 0.82-0.95 0.20-0.40 0.92-1.02 0.80-0.95 0-0.25 0.06-0.10 0-0.035 0-0.035 0.06-0.10
B-7 0.35-0.40 0.17-0.37 0.7-0.8 0.9-1.0 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
BU 0.95-1.05 0.17-0.37 0.9-1.10 0.40-0.60 0-0.15 0-0.05 0-0.035 0-0.035 0-0.30
Gr15 0.95-1.05 0.15-0.35 0.20-0.40 1.30-1.65 0-0.25 0-0.10 0-0.027 0-0.020 0-0.10

3.Technical specification

Brand Breakage rate

Hardness

(HRC)

Impact value

(J/cm²)

Drop times

(times)

 Micro structure
45# <1% ≥45 ≥12 ≥8000 M+C
40Mn <1% ≥50 ≥12 ≥10000 M+C
50Mn <1% ≥55 ≥12 ≥10000 M+C
60Mn <1% ≥55 ≥12 ≥12000 M+C
65Mn <1% ≥58 ≥12 ≥12000 M+C
70Mn <1% ≥60 ≥12 ≥12000 M+C
40Cr <1% ≥55 ≥12 ≥12000 M+C
42CrMo <1% ≥55 ≥12 ≥12000 M+C
70Cr2 <1% ≥58 ≥12 ≥12000 M+C
40Mn2 <1% ≥55 ≥12 ≥12000 M+C
70Mn2 <1% ≥58 ≥12 ≥12000 M+C
B-1 <1% ≥55 ≥12 ≥12000 M+C
B-2 <1% ≥58 ≥12 ≥15000 M+C
B-3 <1% ≥60 ≥12 ≥15000 M+C
B-4 <1% ≥60 ≥12 ≥15000 M+C
B-6 <1% ≥60 ≥12 ≥15000 M+C
B-6A <1% ≥60 ≥12 ≥15000 M+C
B-7 <1% ≥60 ≥12 ≥15000 M+C
BU <1% ≥60 ≥12 ≥15000 M+C
Gr15 <1% ≥60 ≥12 ≥15000 M+C

Product Tags:

150mm Steel Mill Balls

      

30mm Steel Mill Balls

      

30mm Forged Steel Ball

      
Wholesale Diameter 30mm - 150mm Grinding Steel Mill Balls Forged Steel Ball from china suppliers

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