Low chrome cast grinding ball
Low chrome cast grinding ball
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Card no.
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Chemical analysis
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C
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Si
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Mn
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Cr
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P
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S
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Mo
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AI
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||
ZQCr
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2.0-3.5
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≤1.2
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≤1.0
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0.5-1.5
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≤0.15
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≤0.20
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trace
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trace
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Cu
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Ni
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Nb
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Ti
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Zr
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V
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B
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Mg
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trace
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trace
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trace
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trace
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trace
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trace
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trace
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trace
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Mechanical properties and microstructure
Low chrome cast grinding ball
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Card no. |
HRC
(HRC)
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impact value
Ak(J/cm2)
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The microstructure
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Falling ball impact fatigue life
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ZQCr
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≥45
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≥1.6
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P+C
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>5000
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High chrome cast grinding ball
牌号Grade
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chemical composition(%)
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C
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Si
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Mn
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Cr
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P
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S
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Mo
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Cu
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Ni
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ZQCr10
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2.0-3.2
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0.3-1.2
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0.2-1.0
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10-13
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≤0.10
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≤0.10
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0-2.0
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0-1.0
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0-1.5
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ZQCr17
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2.0-3.0
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0.3-1.2
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0.2-1.0
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15-18
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≤0.10
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≤0.10
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0-2.0
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0-1.0
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0-1.5
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ZQCr20
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2.0-2.8
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0.3-1.0
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0.2-1.0
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18-22
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≤0.10
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≤0.08
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0-2.5
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0-1.0
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0-1.5
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ZQCr26
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2.0-2.8
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0.3-1.0
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0.2-1.0
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22-28
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≤0.10
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≤0.08
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0-2.5
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0-2.0
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0-1.5
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硬度(HRC)
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冲击值ak(J/cm2)
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落球冲击值疲劳寿命(次数)Times of falling Balls
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金相组织 Microstructure
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56-63
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≥3.0
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≥15000
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M+C
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M-马氏体 Martensite C-碳化物 Carbide
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产品规格(mm)Specification
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φ8
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φ10
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φ12
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φ15
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φ17
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φ20
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φ25
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φ30
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φ40
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φ50
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φ60
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φ70
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φ80
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φ90
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φ100 |
φ110
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φ120
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φ130
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chromium in paragraph
chemical composition(%)
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C
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Si
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Mn
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Cr
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P
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S
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Mo
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Cu
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Ni
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1.7-3.2
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0.3-1.2
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0.2-1.0
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10-13
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≤0.10
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≤0.10
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0-3.0
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0-1.0
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0-1.5
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硬度(HRC)
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金相组织 Microstructure
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M-马氏体 Martensite C-碳化物 Carbide
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产品规格(mm)Specification
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φ8×10
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φ10×12
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φ12×14
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φ14×16
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φ16×18
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φ18×20
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φ20×20
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φ20×25
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φ25×30
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φ30×35
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φ35×40
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φ40×45
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