Forged steel balls for grinding ores

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forged steel balls for grinding mines(Heat treated steel balls in different diameter sizes)

Specification:

Chemical composition (%)

size	C	Si	Mn	Cr	P	S	MO
1″/2”/2.5”/3”/3.5”	0.7-0.82	0. 17-0.37	0.7- 1. 1	0.2-0.6	≤0.035	≤0.040	≤0.015

Hardness Data

Item name

Surface Hardness

(HRC)

Valume Hardness

(HRC)

Diameter Tolerance

(mm)

Circularity (%)

Breakage

(%)

Impact to broken (Times)

27mm/40mm/50mm/64

60-65

-/+ 2

＜2

＜1

20000

Package

bolas de molienda forjadas

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