hardness grinding media steel ball for ore ferrous metal
1.high hardness:58-67HRC
2.impact strength: exceed 12J/cm2
3.no breakage
4.good wear resistance
2.impact strength: exceed 12J/cm2
3.no breakage
4.good wear resistance
1.Goldpro has been one professional manufacturer and exporter of grinding media steel balls in China. Besides supplying different sizes of grinding steel balls, we also supply other services, like developing new special steel balls according to the ore conditions for our customers.
3. process:
2. forged steel ball, hot rolling grinding media ball and grinding cylpebs
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Name
|
Impact Test
AK.J/cm2
|
Endurance Test Times
(5m)
|
Dia 25mm-60mm
|
Dia 70mm-100mm
|
||
|
Surface
|
Core
|
Surface
|
Core
|
|||
|
45#
|
≥12
|
≥10000
|
≥52
|
≥35
|
≥56
|
≥28
|
|
60Mn
|
≥13
|
≥10000
|
≥58
|
≥42
|
≥58
|
≥29
|
|
65Mn
|
≥15
|
≥12000
|
≥60
|
≥48
|
≥60
|
≥30
|
|
B2
|
≥17
|
≥18000
|
≥60
|
≥55
|
≥60
|
≥50
|
3. process:
heating-----rolling(rolling machine)-----rolled balls-----quenching------tempering----- finished products
4.use: gold mine, silver mine,copper mine, iron mine, power station, cement plant, and chemical industry.
5. Packaging & Delivery
5. Certificate:ISO9001-2008,ISO14001:2004,GB/T28001-2001
5. Packaging & Delivery
| Packaging Details: | weave bag/iron drum |
|---|---|
| Delivery Detail: | according the quantity of the order |
5. Certificate:ISO9001-2008,ISO14001:2004,GB/T28001-2001